Executive Summary
| Summary | |
|---|---|
| Title | kernel security and bug fix update |
| Informations | |||
|---|---|---|---|
| Name | RHSA-2011:0928 | First vendor Publication | 2011-07-12 |
| Vendor | RedHat | Last vendor Modification | 2011-07-12 |
| Severity (Vendor) | Moderate | Revision | 01 |
Security-Database Scoring CVSS v3
| Cvss vector : N/A | |||
|---|---|---|---|
| Overall CVSS Score | NA | ||
| Base Score | NA | Environmental Score | NA |
| impact SubScore | NA | Temporal Score | NA |
| Exploitabality Sub Score | NA | ||
| Calculate full CVSS 3.0 Vectors scores | |||
Security-Database Scoring CVSS v2
| Cvss vector : (AV:N/AC:H/Au:N/C:N/I:N/A:C) | |||
|---|---|---|---|
| Cvss Base Score | 5.4 | Attack Range | Network |
| Cvss Impact Score | 6.9 | Attack Complexity | High |
| Cvss Expoit Score | 4.9 | Authentication | None Required |
| Calculate full CVSS 2.0 Vectors scores | |||
Detail
| Problem Description: Updated kernel packages that fix multiple security issues and various bugs are now available for Red Hat Enterprise Linux 6. The Red Hat Security Response Team has rated this update as having moderate security impact. Common Vulnerability Scoring System (CVSS) base scores, which give detailed severity ratings, are available for each vulnerability from the CVE links in the References section. 2. Relevant releases/architectures: Red Hat Enterprise Linux Desktop (v. 6) - i386, noarch, x86_64 Red Hat Enterprise Linux HPC Node (v. 6) - noarch, x86_64 Red Hat Enterprise Linux Server (v. 6) - i386, noarch, ppc64, s390x, x86_64 Red Hat Enterprise Linux Workstation (v. 6) - i386, noarch, x86_64 3. Description: The kernel packages contain the Linux kernel, the core of any Linux operating system. This update fixes the following security issues: * It was found that the receive hook in the ipip_init() function in the ipip module, and in the ipgre_init() function in the ip_gre module, could be called before network namespaces setup is complete. If packets were received at the time the ipip or ip_gre module was still being loaded into the kernel, it could cause a denial of service. (CVE-2011-1767, CVE-2011-1768, Moderate) * It was found that an mmap() call with the MAP_PRIVATE flag on "/dev/zero" would create transparent hugepages and trigger a certain robustness check. A local, unprivileged user could use this flaw to cause a denial of service. (CVE-2011-2479, Moderate) This update also fixes various bugs. Documentation for these bug fixes will be available shortly from the Technical Notes document linked to in the References section. Users should upgrade to these updated packages, which contain backported patches to resolve these issues, and fix the bugs noted in the Technical Notes. The system must be rebooted for this update to take effect. 4. Solution: Before applying this update, make sure all previously-released errata relevant to your system have been applied. This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at https://access.redhat.com/kb/docs/DOC-11259 To install kernel packages manually, use "rpm -ivh [package]". Do not use "rpm -Uvh" as that will remove the running kernel binaries from your system. You may use "rpm -e" to remove old kernels after determining that the new kernel functions properly on your system. 5. Bugs fixed (http://bugzilla.redhat.com/): 702303 - CVE-2011-1767 CVE-2011-1768 kernel: netns vs proto registration ordering 711546 - RHEL6.1 x86_64 HVM guest crashes on AMD host when guest memory size is larger than 8G 712413 - Cannot find the extended attribute of #11 inode after remount 712414 - [RHEL6.1] [Kernel] Panic while running testing 713135 - MLS - cgconfigparser cannot search on /cgroup/ dirs 713458 - intel-iommu: missing flush prior to removing domains + avoid broken vm/si domain unlinking 714190 - System Hang when there is smart error on IBM platform 714761 - CVE-2011-2479 kernel: thp: madvise on top of /dev/zero private mapping can lead to panic |
Original Source
| Url : https://rhn.redhat.com/errata/RHSA-2011-0928.html |
CWE : Common Weakness Enumeration
| % | Id | Name |
|---|---|---|
| 50 % | CWE-399 | Resource Management Errors |
| 50 % | CWE-362 | Race Condition |
OVAL Definitions
| Definition Id: oval:org.mitre.oval:def:14248 | |||
| Oval ID: | oval:org.mitre.oval:def:14248 | ||
| Title: | DSA-2303-1 linux-2.6 -- privilege escalation/denial of service/information leak | ||
| Description: | Several vulnerabilities have been discovered in the Linux kernel that may lead to a denial of service or privilege escalation. The Common Vulnerabilities and Exposures project identifies the following problems: CVE-2011-1020 Kees Cook discovered an issue in the /proc filesystem that allows local users to gain access to sensitive process information after execution of a setuid binary. CVE-2011-1576 Ryan Sweat discovered an issue in the VLAN implementation. Local users may be able to cause a kernel memory leak, resulting in a denial of service. CVE-2011-2484 Vasiliy Kulikov of Openwall discovered that the number of exit handlers that a process can register is not capped, resulting in local denial of service through resource exhaustion. CVE-2011-2491 Vasily Averin discovered an issue with the NFS locking implementation. A malicious NFS server can cause a client to hang indefinitely in an unlock call. CVE-2011-2492 Marek Kroemeke and Filip Palian discovered that uninitialised struct elements in the Bluetooth subsystem could lead to a leak of sensitive kernel memory through leaked stack memory. CVE-2011-2495 Vasiliy Kulikov of Openwall discovered that the io file of a process" proc directory was world-readable, resulting in local information disclosure of information such as password lengths. CVE-2011-2496 Robert Swiecki discovered that mremap could be abused for local denial of service by triggering a BUG_ON assert. CVE-2011-2497 Dan Rosenberg discovered an integer underflow in the Bluetooth subsystem, which could lead to denial of service or privilege escalation. CVE-2011-2517 It was discovered that the netlink-based wireless configuration interface performed insufficient length validation when parsing SSIDs, resulting in buffer overflows. Local users with the CAP_NET_ADMIN capability can cause a denial of service. CVE-2011-2525 Ben Pfaff reported an issue in the network scheduling code. A local user could cause a denial of service by sending a specially crafted netlink message. CVE-2011-2700 Mauro Carvalho Chehab of Red Hat reported a buffer overflow issue in the driver for the Si4713 FM Radio Transmitter driver used by N900 devices. Local users could exploit this issue to cause a denial of service or potentially gain elevated privileges. CVE-2011-2723 Brent Meshier reported an issue in the GRO implementation. This can be exploited by remote users to create a denial of service in certain network device configurations. CVE-2011-2905 Christian Ohm discovered that the "perf" analysis tool searches for its config files in the current working directory. This could lead to denial of service or potential privilege escalation if a user with elevated privileges is tricked into running "perf" in a directory under the control of the attacker. CVE-2011-2909 Vasiliy Kulikov of Openwall discovered that a programming error in the Comedi driver could lead to the information disclosure through leaked stack memory. CVE-2011-2918 Vince Weaver discovered that incorrect handling of software event overflows in the "perf" analysis tool could lead to local denial of service. CVE-2011-2928 Timo Warns discovered that insufficient validation of Be filesystem images could lead to local denial of service if a malformed filesystem image is mounted. CVE-2011-3188 Dan Kaminsky reported a weakness of the sequence number generation in the TCP protocol implementation. This can be used by remote attackers to inject packets into an active session. CVE-2011-3191 Darren Lavender reported an issue in the Common Internet File System. A malicious file server could cause memory corruption leading to a denial of service. This update also includes a fix for a regression introduced with the previous security fix for CVE-2011-1768 | ||
| Family: | unix | Class: | patch |
| Reference(s): | DSA-2303-1 CVE-2011-1020 CVE-2011-1576 CVE-2011-2484 CVE-2011-2491 CVE-2011-2492 CVE-2011-2495 CVE-2011-2496 CVE-2011-2497 CVE-2011-2517 CVE-2011-2525 CVE-2011-2700 CVE-2011-2723 CVE-2011-2905 CVE-2011-2909 CVE-2011-2918 CVE-2011-2928 CVE-2011-3188 CVE-2011-3191 CVE-2011-1768 | Version: | 5 |
| Platform(s): | Debian GNU/Linux 6.0 Debian GNU/kFreeBSD 6.0 | Product(s): | linux-2.6 |
| Definition Synopsis: | |||
| Definition Id: oval:org.mitre.oval:def:14257 | |||
| Oval ID: | oval:org.mitre.oval:def:14257 | ||
| Title: | DSA-2310-1 linux-2.6 -- privilege escalation/denial of service/information leak | ||
| Description: | Several vulnerabilities have been discovered in the Linux kernel that may lead to a privilege escalation, denial of service or information leak. The Common Vulnerabilities and Exposures project identifies the following problems: CVE-2009-4067 Rafael Dominguez Vega of MWR InfoSecurity reported an issue in the auerswald module, a driver for Auerswald PBX/System Telephone USB devices. Attackers with physical access to a system's USB ports could obtain elevated privileges using a specially crafted USB device. CVE-2011-0712 Rafael Dominguez Vega of MWR InfoSecurity reported an issue in the caiaq module, a USB driver for Native Instruments USB audio devices. Attackers with physical access to a system's USB ports could obtain elevated privileges using a specially crafted USB device. CVE-2011-1020 Kees Cook discovered an issue in the /proc filesystem that allows local users to gain access to sensitive process information after execution of a setuid binary. CVE-2011-2209 Dan Rosenberg discovered an issue in the osf_sysinfo system call on the alpha architecture. Local users could obtain access to sensitive kernel memory. CVE-2011-2211 Dan Rosenberg discovered an issue in the osf_wait4 system call on the alpha architecture permitting local users to gain elevated privileges. CVE-2011-2213 Dan Rosenberg discovered an issue in the INET socket monitoring interface. Local users could cause a denial of service by injecting code and causing the kernel to execute an infinite loop. CVE-2011-2484 Vasiliy Kulikov of Openwall discovered that the number of exit handlers that a process can register is not capped, resulting in local denial of service through resource exhaustion. CVE-2011-2491 Vasily Averin discovered an issue with the NFS locking implementation. A malicious NFS server can cause a client to hang indefinitely in an unlock call. CVE-2011-2492 Marek Kroemeke and Filip Palian discovered that uninitialised struct elements in the Bluetooth subsystem could lead to a leak of sensitive kernel memory through leaked stack memory. CVE-2011-2495 Vasiliy Kulikov of Openwall discovered that the io file of a process" proc directory was world-readable, resulting in local information disclosure of information such as password lengths. CVE-2011-2496 Robert Swiecki discovered that mremap could be abused for local denial of service by triggering a BUG_ON assert. CVE-2011-2497 Dan Rosenberg discovered an integer underflow in the Bluetooth subsystem, which could lead to denial of service or privilege escalation. CVE-2011-2525 Ben Pfaff reported an issue in the network scheduling code. A local user could cause a denial of service by sending a specially crafted netlink message. CVE-2011-2928 Timo Warns discovered that insufficient validation of Be filesystem images could lead to local denial of service if a malformed filesystem image is mounted. CVE-2011-3188 Dan Kaminsky reported a weakness of the sequence number generation in the TCP protocol implementation. This can be used by remote attackers to inject packets into an active session. CVE-2011-3191 Darren Lavender reported an issue in the Common Internet File System. A malicious file server could cause memory corruption leading to a denial of service. This update also includes a fix for a regression introduced with the previous security fix for CVE-2011-1768 | ||
| Family: | unix | Class: | patch |
| Reference(s): | DSA-2310-1 CVE-2009-4067 CVE-2011-0712 CVE-2011-1020 CVE-2011-2209 CVE-2011-2211 CVE-2011-2213 CVE-2011-2484 CVE-2011-2491 CVE-2011-2492 CVE-2011-2495 CVE-2011-2496 CVE-2011-2497 CVE-2011-2525 CVE-2011-2928 CVE-2011-3188 CVE-2011-3191 CVE-2011-1768 | Version: | 5 |
| Platform(s): | Debian GNU/Linux 5.0 | Product(s): | linux-2.6 |
| Definition Synopsis: | |||
| Definition Id: oval:org.mitre.oval:def:14888 | |||
| Oval ID: | oval:org.mitre.oval:def:14888 | ||
| Title: | DSA-2303-2 linux-2.6 -- privilege escalation/denial of service/information leak | ||
| Description: | The linux-2.6 and user-mode-linux upgrades from DSA-2303-1 has caused a regression that can result in an oops during invalid accesses to /proc/<pid>/maps files. The text of the original advisory is reproduced for reference: Several vulnerabilities have been discovered in the Linux kernel that may lead to a denial of service or privilege escalation. The Common Vulnerabilities and Exposures project identifies the following problems: CVE-2011-1020 Kees Cook discovered an issue in the /proc filesystem that allows local users to gain access to sensitive process information after execution of a setuid binary. CVE-2011-1576 Ryan Sweat discovered an issue in the VLAN implementation. Local users may be able to cause a kernel memory leak, resulting in a denial of service. CVE-2011-2484 Vasiliy Kulikov of Openwall discovered that the number of exit handlers that a process can register is not capped, resulting in local denial of service through resource exhaustion. CVE-2011-2491 Vasily Averin discovered an issue with the NFS locking implementation. A malicious NFS server can cause a client to hang indefinitely in an unlock call. CVE-2011-2492 Marek Kroemeke and Filip Palian discovered that uninitialised struct elements in the Bluetooth subsystem could lead to a leak of sensitive kernel memory through leaked stack memory. CVE-2011-2495 Vasiliy Kulikov of Openwall discovered that the io file of a process" proc directory was world-readable, resulting in local information disclosure of information such as password lengths. CVE-2011-2496 Robert Swiecki discovered that mremap could be abused for local denial of service by triggering a BUG_ON assert. CVE-2011-2497 Dan Rosenberg discovered an integer underflow in the Bluetooth subsystem, which could lead to denial of service or privilege escalation. CVE-2011-2517 It was discovered that the netlink-based wireless configuration interface performed insufficient length validation when parsing SSIDs, resulting in buffer overflows. Local users with the CAP_NET_ADMIN capability can cause a denial of service. CVE-2011-2525 Ben Pfaff reported an issue in the network scheduling code. A local user could cause a denial of service by sending a specially crafted netlink message. CVE-2011-2700 Mauro Carvalho Chehab of Red Hat reported a buffer overflow issue in the driver for the Si4713 FM Radio Transmitter driver used by N900 devices. Local users could exploit this issue to cause a denial of service or potentially gain elevated privileges. CVE-2011-2723 Brent Meshier reported an issue in the GRO implementation. This can be exploited by remote users to create a denial of service in certain network device configurations. CVE-2011-2905 Christian Ohm discovered that the "perf" analysis tool searches for its config files in the current working directory. This could lead to denial of service or potential privilege escalation if a user with elevated privileges is tricked into running "perf" in a directory under the control of the attacker. CVE-2011-2909 Vasiliy Kulikov of Openwall discovered that a programming error in the Comedi driver could lead to the information disclosure through leaked stack memory. CVE-2011-2918 Vince Weaver discovered that incorrect handling of software event overflows in the "perf" analysis tool could lead to local denial of service. CVE-2011-2928 Timo Warns discovered that insufficient validation of Be filesystem images could lead to local denial of service if a malformed filesystem image is mounted. CVE-2011-3188 Dan Kaminsky reported a weakness of the sequence number generation in the TCP protocol implementation. This can be used by remote attackers to inject packets into an active session. CVE-2011-3191 Darren Lavender reported an issue in the Common Internet File System. A malicious file server could cause memory corruption leading to a denial of service. This update also includes a fix for a regression introduced with the previous security fix for CVE-2011-1768 | ||
| Family: | unix | Class: | patch |
| Reference(s): | DSA-2303-2 CVE-2011-1020 CVE-2011-1576 CVE-2011-2484 CVE-2011-2491 CVE-2011-2492 CVE-2011-2495 CVE-2011-2496 CVE-2011-2497 CVE-2011-2517 CVE-2011-2525 CVE-2011-2700 CVE-2011-2723 CVE-2011-2905 CVE-2011-2909 CVE-2011-2918 CVE-2011-2928 CVE-2011-3188 CVE-2011-3191 CVE-2011-1768 | Version: | 5 |
| Platform(s): | Debian GNU/Linux 6.0 Debian GNU/kFreeBSD 6.0 | Product(s): | linux-2.6 |
| Definition Synopsis: | |||
| Definition Id: oval:org.mitre.oval:def:27734 | |||
| Oval ID: | oval:org.mitre.oval:def:27734 | ||
| Title: | DEPRECATED: ELSA-2011-0928 -- kernel security and bug fix update (moderate) | ||
| Description: | [2.6.32-131.6.1.el6] - [audit] ia32entry.S sign extend error codes when calling 64 bit code (Eric Paris) [713831 703935] - [audit] push audit success and retcode into arch ptrace.h (Eric Paris) [713831 703935] - [x86] intel-iommu: Flush unmaps at domain_exit (Alex Williamson) [713458 705441] - [x86] intel-iommu: Only unlink device domains from iommu (Alex Williamson) [713458 705441] - [virt] x86: Mask out unsupported CPUID features if running on xen (Igor Mammedov) [711546 703055] - [block] fix accounting bug on cross partition merges (Jerome Marchand) [682989 669363] - [net] vlan: remove multiqueue ability from vlan device (Neil Horman) [713494 703245] - [net] Fix netif_set_real_num_tx_queues (Neil Horman) [713492 702742] - [scsi] mpt2sas: move event handling of MPT2SAS_TURN_ON_FAULT_LED in process context (Tomas Henzl) [714190 701951] - [mm] thp: simple fix for /dev/zero THP mprotect bug (Andrea Arcangeli) [714762 690444] [2.6.32-131.5.1.el6] - [kernel] cgroupfs: use init_cred when populating new cgroupfs mount (Eric Paris) [713135 700538] - [netdrv] ixgbe: adding FdirMode module option (Andy Gospodarek) [711550 707287] - [crypto] testmgr: add xts-aes-256 self-test (Jarod Wilson) [711548 706167] - [fs] ext3: Fix lost extented attributes for inode with ino == 11 (Eric Sandeen) [712413 662666] - [mm] Prevent Disk IO throughput degradation due to memory allocation stalls (Larry Woodman) [711540 679526] - [net] sock: adjust prot->obj_size always (Jiri Pirko) [709381 704231] - [fs] GFS2: resource group bitmap corruption resulting in panics and withdraws (Robert S Peterson) [711528 702057] - [x86] kprobes: Disable irqs during optimized callback (Jiri Olsa) [711545 699865] - [mm] slab, kmemleak: pass the correct pointer to kmemleak_erase() (Steve Best) [712414 698023] - [net] fix netns vs proto registration ordering (Wade Mealing) [702305 702306] {CVE-2011-1767 CVE-2011-1768} - [ppc] Fix oops if scan_dispatch_log is called too early (Steve Best) [711524 696777] - [virt] i8259: initialize isr_ack (Avi Kivity) [711520 670765] - [virt] VMX: Save and restore tr selector across mode switches (Gleb Natapov) [711535 693894] - [virt] VMX: update live TR selector if it changes in real mode (Gleb Natapov) [711535 693894] | ||
| Family: | unix | Class: | patch |
| Reference(s): | ELSA-2011-0928 CVE-2011-1767 CVE-2011-1768 CVE-2011-2479 | Version: | 4 |
| Platform(s): | Oracle Linux 6 | Product(s): | kernel |
| Definition Synopsis: | |||
| |||
CPE : Common Platform Enumeration
OpenVAS Exploits
| Date | Description |
|---|---|
| 2012-06-06 | Name : RedHat Update for kernel RHSA-2011:0928-01 File : nvt/gb_RHSA-2011_0928-01_kernel.nasl |
| 2011-11-25 | Name : Ubuntu Update for linux USN-1268-1 File : nvt/gb_ubuntu_USN_1268_1.nasl |
| 2011-11-25 | Name : Ubuntu Update for linux-fsl-imx51 USN-1271-1 File : nvt/gb_ubuntu_USN_1271_1.nasl |
| 2011-11-25 | Name : Ubuntu Update for linux-ti-omap4 USN-1281-1 File : nvt/gb_ubuntu_USN_1281_1.nasl |
| 2011-11-11 | Name : Ubuntu Update for linux-lts-backport-natty USN-1256-1 File : nvt/gb_ubuntu_USN_1256_1.nasl |
| 2011-08-03 | Name : Debian Security Advisory DSA 2264-1 (linux-2.6) File : nvt/deb_2264_1.nasl |
Open Source Vulnerability Database (OSVDB)
| Id | Description |
|---|---|
| 74652 | Linux Kernel ip_gre Module ipgre_init() Function Namespaces Setup Race Condit... |
| 74651 | Linux Kernel ipip Module ipip_init() Function Namespaces Setup Race Condition... |
| 73237 | Linux Kernel mm/huge_memory.c Transparent Hugepage (THP) MADV_HUGEPAGE DoS |
Nessus® Vulnerability Scanner
| Date | Description |
|---|---|
| 2014-07-22 | Name : The remote Red Hat host is missing one or more security updates. File : redhat-RHSA-2011-1253.nasl - Type : ACT_GATHER_INFO |
| 2013-07-12 | Name : The remote Oracle Linux host is missing one or more security updates. File : oraclelinux_ELSA-2011-2024.nasl - Type : ACT_GATHER_INFO |
| 2013-07-12 | Name : The remote Oracle Linux host is missing one or more security updates. File : oraclelinux_ELSA-2011-2021.nasl - Type : ACT_GATHER_INFO |
| 2013-07-12 | Name : The remote Oracle Linux host is missing one or more security updates. File : oraclelinux_ELSA-2011-0928.nasl - Type : ACT_GATHER_INFO |
| 2013-01-24 | Name : The remote Red Hat host is missing one or more security updates. File : redhat-RHSA-2012-1042.nasl - Type : ACT_GATHER_INFO |
| 2012-08-01 | Name : The remote Scientific Linux host is missing one or more security updates. File : sl_20110712_kernel_on_SL6_x.nasl - Type : ACT_GATHER_INFO |
| 2011-11-26 | Name : The remote Ubuntu host is missing one or more security-related patches. File : ubuntu_USN-1281-1.nasl - Type : ACT_GATHER_INFO |
| 2011-11-22 | Name : The remote Ubuntu host is missing one or more security-related patches. File : ubuntu_USN-1271-1.nasl - Type : ACT_GATHER_INFO |
| 2011-11-22 | Name : The remote Ubuntu host is missing one or more security-related patches. File : ubuntu_USN-1268-1.nasl - Type : ACT_GATHER_INFO |
| 2011-11-10 | Name : The remote Ubuntu host is missing one or more security-related patches. File : ubuntu_USN-1256-1.nasl - Type : ACT_GATHER_INFO |
| 2011-09-30 | Name : The remote Ubuntu host is missing one or more security-related patches. File : ubuntu_USN-1218-1.nasl - Type : ACT_GATHER_INFO |
| 2011-09-27 | Name : The remote Ubuntu host is missing a security-related patch. File : ubuntu_USN-1216-1.nasl - Type : ACT_GATHER_INFO |
| 2011-09-26 | Name : The remote Debian host is missing a security-related update. File : debian_DSA-2310.nasl - Type : ACT_GATHER_INFO |
| 2011-09-15 | Name : The remote Ubuntu host is missing a security-related patch. File : ubuntu_USN-1208-1.nasl - Type : ACT_GATHER_INFO |
| 2011-09-14 | Name : The remote Ubuntu host is missing a security-related patch. File : ubuntu_USN-1203-1.nasl - Type : ACT_GATHER_INFO |
| 2011-09-09 | Name : The remote Debian host is missing a security-related update. File : debian_DSA-2303.nasl - Type : ACT_GATHER_INFO |
| 2011-07-14 | Name : The remote Ubuntu host is missing one or more security-related patches. File : ubuntu_USN-1167-1.nasl - Type : ACT_GATHER_INFO |
| 2011-07-13 | Name : The remote Red Hat host is missing one or more security updates. File : redhat-RHSA-2011-0928.nasl - Type : ACT_GATHER_INFO |
| 2011-06-20 | Name : The remote Debian host is missing a security-related update. File : debian_DSA-2264.nasl - Type : ACT_GATHER_INFO |
| 2011-06-10 | Name : The remote Debian host is missing a security-related update. File : debian_DSA-2240.nasl - Type : ACT_GATHER_INFO |
Alert History
| Date | Informations |
|---|---|
| 2014-02-17 11:54:52 |
|
| 2013-03-01 17:20:41 |
|
