Executive Summary
Summary | |
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Title | kernel-rt security and bug fix update |
Informations | |||
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Name | RHSA-2016:1541 | First vendor Publication | 2016-08-02 |
Vendor | RedHat | Last vendor Modification | 2016-08-02 |
Severity (Vendor) | N/A | Revision | 03 |
Security-Database Scoring CVSS v3
Cvss vector : N/A | |||
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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:L/AC:L/Au:N/C:C/I:C/A:C) | |||
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Cvss Base Score | 7.2 | Attack Range | Local |
Cvss Impact Score | 10 | Attack Complexity | Low |
Cvss Expoit Score | 3.9 | Authentication | None Required |
Calculate full CVSS 2.0 Vectors scores |
Detail
Problem Description: An update for kernel-rt is now available for Red Hat Enterprise Linux 7. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section. 2. Relevant releases/architectures: Red Hat Enterprise Linux Realtime (v. 7) - noarch, x86_64 Red Hat Enterprise Linux for Real Time for NFV (v. 7) - noarch, x86_64 3. Description: The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements. * A flaw was found in the Linux kernel's keyring handling code, where in key_reject_and_link() an uninitialised variable would eventually lead to arbitrary free address which could allow attacker to use a use-after-free style attack. (CVE-2016-4470, Important) * The ovl_setattr function in fs/overlayfs/inode.c in the Linux kernel through 4.3.3 attempts to merge distinct setattr operations, which allows local users to bypass intended access restrictions and modify the attributes of arbitrary overlay files via a crafted application. (CVE-2015-8660, Moderate) Red Hat would like to thank Nathan Williams for reporting CVE-2015-8660. The CVE-2016-4470 issue was discovered by David Howells (Red Hat Inc.). The kernel-rt packages have been upgraded to the kernel-3.10.0-327.28.2.el7 source tree, which provides a number of bug fixes over the previous version. (BZ#1350307) This update also fixes the following bugs: * Previously, use of the get/put_cpu_var() function in function refill_stock() from the memcontrol cgroup code lead to a "scheduling while atomic" warning. With this update, refill_stock() uses the get/put_cpu_light() function instead, and the warnings no longer appear. (BZ#1347171) * Prior to this update, if a real time task pinned to a given CPU was taking 100% of the CPU time, then calls to the lru_add_drain_all() function on other CPUs blocked for an undetermined amount of time. This caused latencies and undesired side effects. With this update, lru_add_drain_all() has been changed to drain the LRU pagevecs of remote CPUs. (BZ#1348523) 4. Solution: For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 The system must be rebooted for this update to take effect. 5. Bugs fixed (https://bugzilla.redhat.com/): 1291329 - CVE-2015-8660 kernel: Permission bypass on overlayfs during copy_up 1341716 - CVE-2016-4470 kernel: Uninitialized variable in request_key handling causes kernel crash in error handling path 1350307 - kernel-rt: update to the RHEL7.2.z batch#6 source tree |
Original Source
Url : https://rhn.redhat.com/errata/RHSA-2016-1541.html |
CWE : Common Weakness Enumeration
% | Id | Name |
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100 % | CWE-264 | Permissions, Privileges, and Access Controls |
CPE : Common Platform Enumeration
Nessus® Vulnerability Scanner
Date | Description |
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2017-05-01 | Name : The remote EulerOS host is missing multiple security updates. File : EulerOS_SA-2016-1043.nasl - Type : ACT_GATHER_INFO |
2017-05-01 | Name : The remote EulerOS host is missing multiple security updates. File : EulerOS_SA-2016-1020.nasl - Type : ACT_GATHER_INFO |
2017-04-03 | Name : The remote OracleVM host is missing one or more security updates. File : oraclevm_OVMSA-2017-0057.nasl - Type : ACT_GATHER_INFO |
2017-02-16 | Name : The remote SUSE host is missing one or more security updates. File : suse_SU-2017-0471-1.nasl - Type : ACT_GATHER_INFO |
2017-01-31 | Name : The remote SUSE host is missing one or more security updates. File : suse_SU-2017-0333-1.nasl - Type : ACT_GATHER_INFO |
2016-11-17 | Name : The remote OracleVM host is missing one or more security updates. File : oraclevm_OVMSA-2016-0158.nasl - Type : ACT_GATHER_INFO |
2016-11-02 | Name : The remote Red Hat host is missing one or more security updates. File : redhat-RHSA-2016-2133.nasl - Type : ACT_GATHER_INFO |
2016-11-01 | Name : The remote Red Hat host is missing one or more security updates. File : redhat-RHSA-2016-2128.nasl - Type : ACT_GATHER_INFO |
2016-10-24 | Name : The remote device is missing a vendor-supplied security patch. File : f5_bigip_SOL55672042.nasl - Type : ACT_GATHER_INFO |
2016-10-19 | Name : The remote Red Hat host is missing one or more security updates. File : redhat-RHSA-2016-2076.nasl - Type : ACT_GATHER_INFO |
2016-10-19 | Name : The remote Red Hat host is missing one or more security updates. File : redhat-RHSA-2016-2074.nasl - Type : ACT_GATHER_INFO |
2016-10-06 | Name : The remote Scientific Linux host is missing one or more security updates. File : sl_20161004_kernel_on_SL6_x.nasl - Type : ACT_GATHER_INFO |
2016-10-06 | Name : The remote CentOS host is missing one or more security updates. File : centos_RHSA-2016-2006.nasl - Type : ACT_GATHER_INFO |
2016-10-05 | Name : The remote Red Hat host is missing one or more security updates. File : redhat-RHSA-2016-2006.nasl - Type : ACT_GATHER_INFO |
2016-10-05 | Name : The remote Oracle Linux host is missing one or more security updates. File : oraclelinux_ELSA-2016-2006.nasl - Type : ACT_GATHER_INFO |
2016-09-23 | Name : The remote OracleVM host is missing one or more security updates. File : oraclevm_OVMSA-2016-0100.nasl - Type : ACT_GATHER_INFO |
2016-09-08 | Name : The remote SUSE host is missing one or more security updates. File : suse_SU-2016-2245-1.nasl - Type : ACT_GATHER_INFO |
2016-09-06 | Name : The remote Debian host is missing a security update. File : debian_DLA-609.nasl - Type : ACT_GATHER_INFO |
2016-09-02 | Name : The remote SUSE host is missing one or more security updates. File : suse_SU-2016-2105-1.nasl - Type : ACT_GATHER_INFO |
2016-09-02 | Name : The remote SUSE host is missing one or more security updates. File : suse_SU-2016-2018-1.nasl - Type : ACT_GATHER_INFO |
2016-09-02 | Name : The remote SUSE host is missing one or more security updates. File : suse_SU-2016-2014-1.nasl - Type : ACT_GATHER_INFO |
2016-09-02 | Name : The remote SUSE host is missing one or more security updates. File : suse_SU-2016-2010-1.nasl - Type : ACT_GATHER_INFO |
2016-09-02 | Name : The remote SUSE host is missing one or more security updates. File : suse_SU-2016-2006-1.nasl - Type : ACT_GATHER_INFO |
2016-09-02 | Name : The remote SUSE host is missing one or more security updates. File : suse_SU-2016-2005-1.nasl - Type : ACT_GATHER_INFO |
2016-09-02 | Name : The remote SUSE host is missing one or more security updates. File : suse_SU-2016-2002-1.nasl - Type : ACT_GATHER_INFO |
2016-09-02 | Name : The remote SUSE host is missing one or more security updates. File : suse_SU-2016-2001-1.nasl - Type : ACT_GATHER_INFO |
2016-09-02 | Name : The remote SUSE host is missing one or more security updates. File : suse_SU-2016-1999-1.nasl - Type : ACT_GATHER_INFO |
2016-09-02 | Name : The remote SUSE host is missing one or more security updates. File : suse_SU-2016-1998-1.nasl - Type : ACT_GATHER_INFO |
2016-09-02 | Name : The remote SUSE host is missing one or more security updates. File : suse_SU-2016-1995-1.nasl - Type : ACT_GATHER_INFO |
2016-08-30 | Name : The remote openSUSE host is missing a security update. File : openSUSE-2016-1029.nasl - Type : ACT_GATHER_INFO |
2016-08-29 | Name : The remote Oracle Linux host is missing one or more security updates. File : oraclelinux_ELSA-2016-3596.nasl - Type : ACT_GATHER_INFO |
2016-08-25 | Name : The remote openSUSE host is missing a security update. File : openSUSE-2016-1015.nasl - Type : ACT_GATHER_INFO |
2016-08-24 | Name : The remote Red Hat host is missing one or more security updates. File : redhat-RHSA-2016-1657.nasl - Type : ACT_GATHER_INFO |
2016-08-11 | Name : The remote Ubuntu host is missing a security-related patch. File : ubuntu_USN-3057-1.nasl - Type : ACT_GATHER_INFO |
2016-08-11 | Name : The remote Ubuntu host is missing a security-related patch. File : ubuntu_USN-3056-1.nasl - Type : ACT_GATHER_INFO |
2016-08-11 | Name : The remote Ubuntu host is missing one or more security-related patches. File : ubuntu_USN-3055-1.nasl - Type : ACT_GATHER_INFO |
2016-08-11 | Name : The remote Ubuntu host is missing one or more security-related patches. File : ubuntu_USN-3054-1.nasl - Type : ACT_GATHER_INFO |
2016-08-11 | Name : The remote Ubuntu host is missing one or more security-related patches. File : ubuntu_USN-3053-1.nasl - Type : ACT_GATHER_INFO |
2016-08-11 | Name : The remote Ubuntu host is missing one or more security-related patches. File : ubuntu_USN-3052-1.nasl - Type : ACT_GATHER_INFO |
2016-08-11 | Name : The remote Ubuntu host is missing one or more security-related patches. File : ubuntu_USN-3051-1.nasl - Type : ACT_GATHER_INFO |
2016-08-11 | Name : The remote Ubuntu host is missing one or more security-related patches. File : ubuntu_USN-3049-1.nasl - Type : ACT_GATHER_INFO |
2016-08-08 | Name : The remote OracleVM host is missing one or more security updates. File : oraclevm_OVMSA-2016-0095.nasl - Type : ACT_GATHER_INFO |
2016-08-08 | Name : The remote OracleVM host is missing one or more security updates. File : oraclevm_OVMSA-2016-0094.nasl - Type : ACT_GATHER_INFO |
2016-08-08 | Name : The remote Oracle Linux host is missing one or more security updates. File : oraclelinux_ELSA-2016-3593.nasl - Type : ACT_GATHER_INFO |
2016-08-08 | Name : The remote Oracle Linux host is missing one or more security updates. File : oraclelinux_ELSA-2016-3592.nasl - Type : ACT_GATHER_INFO |
2016-08-08 | Name : The remote Oracle Linux host is missing one or more security updates. File : oraclelinux_ELSA-2016-3591.nasl - Type : ACT_GATHER_INFO |
2016-08-04 | Name : The remote CentOS host is missing one or more security updates. File : centos_RHSA-2016-1539.nasl - Type : ACT_GATHER_INFO |
2016-08-04 | Name : The remote Scientific Linux host is missing one or more security updates. File : sl_20160802_kernel_on_SL7_x.nasl - Type : ACT_GATHER_INFO |
2016-08-03 | Name : The remote Red Hat host is missing one or more security updates. File : redhat-RHSA-2016-1541.nasl - Type : ACT_GATHER_INFO |
2016-08-03 | Name : The remote Red Hat host is missing one or more security updates. File : redhat-RHSA-2016-1539.nasl - Type : ACT_GATHER_INFO |
2016-08-03 | Name : The remote Red Hat host is missing one or more security updates. File : redhat-RHSA-2016-1532.nasl - Type : ACT_GATHER_INFO |
2016-08-03 | Name : The remote Oracle Linux host is missing one or more security updates. File : oraclelinux_ELSA-2016-1539.nasl - Type : ACT_GATHER_INFO |
2016-08-02 | Name : The remote Amazon Linux AMI host is missing a security update. File : ala_ALAS-2016-726.nasl - Type : ACT_GATHER_INFO |
2016-07-20 | Name : The remote Fedora host is missing a security update. File : fedora_2016-63ee0999e4.nasl - Type : ACT_GATHER_INFO |
2016-07-15 | Name : The remote openSUSE host is missing a security update. File : openSUSE-2016-869.nasl - Type : ACT_GATHER_INFO |
2016-07-15 | Name : The remote Fedora host is missing a security update. File : fedora_2016-73a733f4d9.nasl - Type : ACT_GATHER_INFO |
2016-07-15 | Name : The remote Fedora host is missing a security update. File : fedora_2016-1c409313f4.nasl - Type : ACT_GATHER_INFO |
2016-06-29 | Name : The remote Debian host is missing a security-related update. File : debian_DSA-3607.nasl - Type : ACT_GATHER_INFO |
2016-02-29 | Name : The remote SUSE host is missing one or more security updates. File : suse_SU-2016-0585-1.nasl - Type : ACT_GATHER_INFO |
2016-01-06 | Name : The remote Ubuntu host is missing one or more security-related patches. File : ubuntu_USN-2857-2.nasl - Type : ACT_GATHER_INFO |
2016-01-06 | Name : The remote Ubuntu host is missing one or more security-related patches. File : ubuntu_USN-2858-1.nasl - Type : ACT_GATHER_INFO |
2016-01-06 | Name : The remote Ubuntu host is missing one or more security-related patches. File : ubuntu_USN-2858-2.nasl - Type : ACT_GATHER_INFO |
2016-01-06 | Name : The remote Ubuntu host is missing a security-related patch. File : ubuntu_USN-2858-3.nasl - Type : ACT_GATHER_INFO |
2016-01-06 | Name : The remote Ubuntu host is missing one or more security-related patches. File : ubuntu_USN-2857-1.nasl - Type : ACT_GATHER_INFO |
Alert History
Date | Informations |
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2016-08-04 13:25:52 |
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2016-08-03 05:22:23 |
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