Executive Summary
Summary | |
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Title | kernel security and bug fix update |
Informations | |||
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Name | RHSA-2014:0520 | First vendor Publication | 2014-05-20 |
Vendor | RedHat | Last vendor Modification | 2014-05-20 |
Severity (Vendor) | Important | Revision | 01 |
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:N/AC:M/Au:N/C:N/I:N/A:C) | |||
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Cvss Base Score | 7.1 | Attack Range | Network |
Cvss Impact Score | 6.9 | Attack Complexity | Medium |
Cvss Expoit Score | 8.6 | Authentication | None Required |
Calculate full CVSS 2.0 Vectors scores |
Detail
Problem Description: Updated kernel packages that fix two security issues and one bug are now available for Red Hat Enterprise Linux 6.2 Extended Update Support. The Red Hat Security Response Team has rated this update as having Important 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 AUS (v. 6.2 server) - noarch, x86_64 Red Hat Enterprise Linux Server Optional AUS (v. 6.2) - x86_64 3. Description: The kernel packages contain the Linux kernel, the core of any Linux operating system. * A flaw was found in the way the Linux kernel processed an authenticated COOKIE_ECHO chunk during the initialization of an SCTP connection. A remote attacker could use this flaw to crash the system by initiating a specially crafted SCTP handshake in order to trigger a NULL pointer dereference on the system. (CVE-2014-0101, Important) * A race condition flaw, leading to heap-based buffer overflows, was found in the way the Linux kernel's N_TTY line discipline (LDISC) implementation handled concurrent processing of echo output and TTY write operations originating from user space when the underlying TTY driver was PTY. An unprivileged, local user could use this flaw to crash the system or, potentially, escalate their privileges on the system. (CVE-2014-0196, Important) Red Hat would like to thank Nokia Siemens Networks for reporting CVE-2014-0101. This update also fixes the following bug: * Prior to this update, a guest-provided value was used as the head length of the socket buffer allocated on the host. If the host was under heavy memory load and the guest-provided value was too large, the allocation could have failed, resulting in stalls and packet drops in the guest's Tx path. With this update, the guest-provided value has been limited to a reasonable size so that socket buffer allocations on the host succeed regardless of the memory load on the host, and guests can send packets without experiencing packet drops or stalls. (BZ#1092349) All kernel users are advised to upgrade to these updated packages, which contain backported patches to correct these issues. 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/site/articles/11258 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 (https://bugzilla.redhat.com/): 1070705 - CVE-2014-0101 kernel: net: sctp: null pointer dereference when processing authenticated cookie_echo chunk 1094232 - CVE-2014-0196 kernel: pty layer race condition leading to memory corruption |
Original Source
Url : https://rhn.redhat.com/errata/RHSA-2014-0520.html |
CWE : Common Weakness Enumeration
% | Id | Name |
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50 % | CWE-476 | NULL Pointer Dereference |
50 % | CWE-362 | Race Condition |
OVAL Definitions
Definition Id: oval:org.mitre.oval:def:24445 | |||
Oval ID: | oval:org.mitre.oval:def:24445 | ||
Title: | USN-2200-1 -- linux-lts-raring vulnerability | ||
Description: | The system could be made to crash or run programs as an administrator. | ||
Family: | unix | Class: | patch |
Reference(s): | USN-2200-1 CVE-2014-0196 | Version: | 5 |
Platform(s): | Ubuntu 12.04 | Product(s): | linux-lts-raring |
Definition Synopsis: | |||
Definition Id: oval:org.mitre.oval:def:24543 | |||
Oval ID: | oval:org.mitre.oval:def:24543 | ||
Title: | USN-2203-1 -- linux vulnerability | ||
Description: | The system could be made to crash or run programs as an administrator. | ||
Family: | unix | Class: | patch |
Reference(s): | USN-2203-1 CVE-2014-0196 | Version: | 5 |
Platform(s): | Ubuntu 13.10 | Product(s): | linux |
Definition Synopsis: | |||
Definition Id: oval:org.mitre.oval:def:24668 | |||
Oval ID: | oval:org.mitre.oval:def:24668 | ||
Title: | USN-2202-1 -- linux vulnerability | ||
Description: | The system could be made to crash or run programs as an administrator. | ||
Family: | unix | Class: | patch |
Reference(s): | USN-2202-1 CVE-2014-0196 | Version: | 5 |
Platform(s): | Ubuntu 12.10 | Product(s): | linux |
Definition Synopsis: | |||
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Definition Id: oval:org.mitre.oval:def:24673 | |||
Oval ID: | oval:org.mitre.oval:def:24673 | ||
Title: | USN-2199-1 -- linux-lts-quantal vulnerability | ||
Description: | The system could be made to crash or run programs as an administrator. | ||
Family: | unix | Class: | patch |
Reference(s): | USN-2199-1 CVE-2014-0196 | Version: | 5 |
Platform(s): | Ubuntu 12.04 | Product(s): | linux-lts-quantal |
Definition Synopsis: | |||
Definition Id: oval:org.mitre.oval:def:24706 | |||
Oval ID: | oval:org.mitre.oval:def:24706 | ||
Title: | USN-2201-1 -- linux-lts-saucy vulnerability | ||
Description: | The system could be made to crash or run programs as an administrator. | ||
Family: | unix | Class: | patch |
Reference(s): | USN-2201-1 CVE-2014-0196 | Version: | 5 |
Platform(s): | Ubuntu 12.04 | Product(s): | linux-lts-saucy |
Definition Synopsis: | |||
Definition Id: oval:org.mitre.oval:def:24747 | |||
Oval ID: | oval:org.mitre.oval:def:24747 | ||
Title: | USN-2204-1 -- linux vulnerability | ||
Description: | The system could be made to crash or run programs as an administrator. | ||
Family: | unix | Class: | patch |
Reference(s): | USN-2204-1 CVE-2014-0196 | Version: | 4 |
Platform(s): | Ubuntu 14.04 | Product(s): | linux |
Definition Synopsis: | |||
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Definition Id: oval:org.mitre.oval:def:24818 | |||
Oval ID: | oval:org.mitre.oval:def:24818 | ||
Title: | USN-2197-1 -- linux-ec2 vulnerability | ||
Description: | The system could be made to crash or run programs as an administrator. | ||
Family: | unix | Class: | patch |
Reference(s): | USN-2197-1 CVE-2014-0196 | Version: | 5 |
Platform(s): | Ubuntu 10.04 | Product(s): | linux-ec2 |
Definition Synopsis: | |||
Definition Id: oval:org.mitre.oval:def:24838 | |||
Oval ID: | oval:org.mitre.oval:def:24838 | ||
Title: | USN-2198-1 -- linux vulnerability | ||
Description: | The system could be made to crash or run programs as an administrator. | ||
Family: | unix | Class: | patch |
Reference(s): | USN-2198-1 CVE-2014-0196 | Version: | 5 |
Platform(s): | Ubuntu 12.04 | Product(s): | linux |
Definition Synopsis: | |||
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Definition Id: oval:org.mitre.oval:def:25233 | |||
Oval ID: | oval:org.mitre.oval:def:25233 | ||
Title: | SUSE-SU-2014:0667-1 -- Security update for Linux Kernel | ||
Description: | The SUSE Linux Enterprise 11 Service Pack 3 kernel was updated to fix the following severe security issues: * CVE-2014-1737: The raw_cmd_copyin function in drivers/block/floppy.c in the Linux kernel through 3.14.3 does not properly handle error conditions during processing of an FDRAWCMD ioctl call, which allows local users to trigger kfree operations and gain privileges by leveraging write access to a /dev/fd device. (bnc#875798) * CVE-2014-1738: The raw_cmd_copyout function in drivers/block/floppy.c in the Linux kernel through 3.14.3 does not properly restrict access to certain pointers during processing of an FDRAWCMD ioctl call, which allows local users to obtain sensitive information from kernel heap memory by leveraging write access to a /dev/fd device. (bnc#875798) * CVE-2014-0196: The n_tty_write function in drivers/tty/n_tty.c in the Linux kernel through 3.14.3 does not properly manage tty driver access in the "LECHO & !OPOST" case, which allows local users to cause a denial of service (memory corruption and system crash) or gain privileges by triggering a race condition involving read and write operations with long strings. (bnc#875690) | ||
Family: | unix | Class: | patch |
Reference(s): | SUSE-SU-2014:0667-1 CVE-2014-1737 CVE-2014-1738 CVE-2014-0196 | Version: | 3 |
Platform(s): | SUSE Linux Enterprise Server 11 SUSE Linux Enterprise Desktop 11 | Product(s): | Linux Kernel |
Definition Synopsis: | |||
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Definition Id: oval:org.mitre.oval:def:25258 | |||
Oval ID: | oval:org.mitre.oval:def:25258 | ||
Title: | RHSA-2014:0678: kernel security update (Important) | ||
Description: | The kernel packages contain the Linux kernel, the core of any Linux operating system. * A race condition flaw, leading to heap-based buffer overflows, was found in the way the Linux kernel's N_TTY line discipline (LDISC) implementation handled concurrent processing of echo output and TTY write operations originating from user space when the underlying TTY driver was PTY. An unprivileged, local user could use this flaw to crash the system or, potentially, escalate their privileges on the system. (CVE-2014-0196, Important) All kernel users are advised to upgrade to these updated packages, which contain a backported patch to correct this issue. The system must be rebooted for this update to take effect. | ||
Family: | unix | Class: | patch |
Reference(s): | RHSA-2014:0678-00 CVE-2014-0196 | Version: | 4 |
Platform(s): | Red Hat Enterprise Linux 7 CentOS Linux 7 | Product(s): | kernel |
Definition Synopsis: | |||
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CPE : Common Platform Enumeration
ExploitDB Exploits
id | Description |
---|---|
2014-05-26 | Linux kernel 3.14-rc1 <= 3.15-rc4 - Raw Mode PTY Local Echo Race Condition... |
Snort® IPS/IDS
Date | Description |
---|---|
2016-03-15 | Linux kernel SCTP handshake COOKIE ECHO Chunks denial of service attempt RuleID : 37654 - Revision : 2 - Type : OS-LINUX |
2016-03-14 | Linux kernel SCTP handshake COOKIE ECHO Chunks denial of service attempt RuleID : 37408 - Revision : 2 - Type : OS-LINUX |
Nessus® Vulnerability Scanner
Date | Description |
---|---|
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 |
2015-03-13 | Name : The remote Oracle Linux host is missing one or more security updates. File : oraclelinux_ELSA-2015-0290.nasl - Type : ACT_GATHER_INFO |
2014-11-08 | Name : The remote Red Hat host is missing one or more security updates. File : redhat-RHSA-2014-0520.nasl - Type : ACT_GATHER_INFO |
2014-11-08 | Name : The remote Red Hat host is missing one or more security updates. File : redhat-RHSA-2014-0512.nasl - Type : ACT_GATHER_INFO |
2014-11-08 | Name : The remote Red Hat host is missing one or more security updates. File : redhat-RHSA-2014-0432.nasl - Type : ACT_GATHER_INFO |
2014-11-08 | Name : The remote Red Hat host is missing one or more security updates. File : redhat-RHSA-2014-0419.nasl - Type : ACT_GATHER_INFO |
2014-11-08 | Name : The remote Red Hat host is missing a security update. File : redhat-RHSA-2014-0339.nasl - Type : ACT_GATHER_INFO |
2014-10-12 | Name : The remote Amazon Linux AMI host is missing a security update. File : ala_ALAS-2014-392.nasl - Type : ACT_GATHER_INFO |
2014-10-12 | Name : The remote Amazon Linux AMI host is missing a security update. File : ala_ALAS-2014-339.nasl - Type : ACT_GATHER_INFO |
2014-10-10 | Name : The remote device is missing a vendor-supplied security patch. File : f5_bigip_SOL15319.nasl - Type : ACT_GATHER_INFO |
2014-10-10 | Name : The remote device is missing a vendor-supplied security patch. File : f5_bigip_SOL15317.nasl - Type : ACT_GATHER_INFO |
2014-07-31 | Name : The remote Oracle Linux host is missing one or more security updates. File : oraclelinux_ELSA-2014-3053.nasl - Type : ACT_GATHER_INFO |
2014-07-31 | Name : The remote Oracle Linux host is missing one or more security updates. File : oraclelinux_ELSA-2014-3054.nasl - Type : ACT_GATHER_INFO |
2014-07-30 | Name : The remote Red Hat host is missing one or more security updates. File : redhat-RHSA-2014-0678.nasl - Type : ACT_GATHER_INFO |
2014-07-24 | Name : The remote Oracle Linux host is missing one or more security updates. File : oraclelinux_ELSA-2014-0678.nasl - Type : ACT_GATHER_INFO |
2014-07-22 | Name : The remote Red Hat host is missing one or more security updates. File : redhat-RHSA-2014-0557.nasl - Type : ACT_GATHER_INFO |
2014-07-17 | Name : The remote SuSE 11 host is missing one or more security updates. File : suse_11_kernel-140709.nasl - Type : ACT_GATHER_INFO |
2014-06-28 | Name : The remote Ubuntu host is missing one or more security-related patches. File : ubuntu_USN-2260-1.nasl - Type : ACT_GATHER_INFO |
2014-06-13 | Name : The remote openSUSE host is missing a security update. File : openSUSE-2014-376.nasl - Type : ACT_GATHER_INFO |
2014-06-13 | Name : The remote openSUSE host is missing a security update. File : openSUSE-2014-375.nasl - Type : ACT_GATHER_INFO |
2014-06-13 | Name : The remote Mandriva Linux host is missing one or more security updates. File : mandriva_MDVSA-2014-124.nasl - Type : ACT_GATHER_INFO |
2014-05-28 | Name : The remote Ubuntu host is missing one or more security-related patches. File : ubuntu_USN-2228-1.nasl - Type : ACT_GATHER_INFO |
2014-05-28 | Name : The remote Ubuntu host is missing one or more security-related patches. File : ubuntu_USN-2225-1.nasl - Type : ACT_GATHER_INFO |
2014-05-28 | Name : The remote Ubuntu host is missing a security-related patch. File : ubuntu_USN-2224-1.nasl - Type : ACT_GATHER_INFO |
2014-05-28 | Name : The remote Ubuntu host is missing a security-related patch. File : ubuntu_USN-2223-1.nasl - Type : ACT_GATHER_INFO |
2014-05-27 | Name : The remote Ubuntu host is missing one or more security-related patches. File : ubuntu_USN-2221-1.nasl - Type : ACT_GATHER_INFO |
2014-05-22 | Name : The remote Fedora host is missing a security update. File : fedora_2014-6354.nasl - Type : ACT_GATHER_INFO |
2014-05-20 | Name : The remote Oracle Linux host is missing one or more security updates. File : oraclelinux_ELSA-2014-3034.nasl - Type : ACT_GATHER_INFO |
2014-05-16 | Name : The remote SuSE 11 host is missing one or more security updates. File : suse_11_kernel-140513.nasl - Type : ACT_GATHER_INFO |
2014-05-16 | Name : The remote Debian host is missing a security-related update. File : debian_DSA-2928.nasl - Type : ACT_GATHER_INFO |
2014-05-13 | Name : The remote Debian host is missing a security-related update. File : debian_DSA-2926.nasl - Type : ACT_GATHER_INFO |
2014-05-12 | Name : The remote Fedora host is missing a security update. File : fedora_2014-6122.nasl - Type : ACT_GATHER_INFO |
2014-05-06 | Name : The remote Ubuntu host is missing a security-related patch. File : ubuntu_USN-2197-1.nasl - Type : ACT_GATHER_INFO |
2014-05-06 | Name : The remote Ubuntu host is missing one or more security-related patches. File : ubuntu_USN-2196-1.nasl - Type : ACT_GATHER_INFO |
2014-05-06 | Name : The remote Ubuntu host is missing one or more security-related patches. File : ubuntu_USN-2198-1.nasl - Type : ACT_GATHER_INFO |
2014-05-06 | Name : The remote Ubuntu host is missing a security-related patch. File : ubuntu_USN-2199-1.nasl - Type : ACT_GATHER_INFO |
2014-05-06 | Name : The remote Ubuntu host is missing a security-related patch. File : ubuntu_USN-2200-1.nasl - Type : ACT_GATHER_INFO |
2014-05-06 | Name : The remote Ubuntu host is missing one or more security-related patches. File : ubuntu_USN-2202-1.nasl - Type : ACT_GATHER_INFO |
2014-05-06 | Name : The remote Ubuntu host is missing one or more security-related patches. File : ubuntu_USN-2203-1.nasl - Type : ACT_GATHER_INFO |
2014-05-06 | Name : The remote Ubuntu host is missing one or more security-related patches. File : ubuntu_USN-2204-1.nasl - Type : ACT_GATHER_INFO |
2014-05-06 | Name : The remote Ubuntu host is missing one or more security-related patches. File : ubuntu_USN-2201-1.nasl - Type : ACT_GATHER_INFO |
2014-04-27 | Name : The remote Ubuntu host is missing a security-related patch. File : ubuntu_USN-2174-1.nasl - Type : ACT_GATHER_INFO |
2014-04-27 | Name : The remote Ubuntu host is missing one or more security-related patches. File : ubuntu_USN-2173-1.nasl - Type : ACT_GATHER_INFO |
2014-04-27 | Name : The remote Debian host is missing a security-related update. File : debian_DSA-2906.nasl - Type : ACT_GATHER_INFO |
2014-03-28 | Name : The remote Oracle Linux host is missing one or more security updates. File : oraclelinux_ELSA-2014-3016.nasl - Type : ACT_GATHER_INFO |
2014-03-28 | Name : The remote Amazon Linux AMI host is missing a security update. File : ala_ALAS-2014-317.nasl - Type : ACT_GATHER_INFO |
2014-03-27 | Name : The remote Oracle Linux host is missing one or more security updates. File : oraclelinux_ELSA-2014-3015.nasl - Type : ACT_GATHER_INFO |
2014-03-27 | Name : The remote Oracle Linux host is missing one or more security updates. File : oraclelinux_ELSA-2014-3014.nasl - Type : ACT_GATHER_INFO |
2014-03-26 | Name : The remote Scientific Linux host is missing one or more security updates. File : sl_20140325_kernel_on_SL6_x.nasl - Type : ACT_GATHER_INFO |
2014-03-26 | Name : The remote Red Hat host is missing one or more security updates. File : redhat-RHSA-2014-0328.nasl - Type : ACT_GATHER_INFO |
2014-03-26 | Name : The remote Oracle Linux host is missing one or more security updates. File : oraclelinux_ELSA-2014-0328.nasl - Type : ACT_GATHER_INFO |
2014-03-26 | Name : The remote CentOS host is missing one or more security updates. File : centos_RHSA-2014-0328.nasl - Type : ACT_GATHER_INFO |
2014-03-10 | Name : The remote Fedora host is missing a security update. File : fedora_2014-3448.nasl - Type : ACT_GATHER_INFO |
2014-03-07 | Name : The remote Fedora host is missing a security update. File : fedora_2014-3442.nasl - Type : ACT_GATHER_INFO |
Alert History
Date | Informations |
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2014-11-08 13:32:07 |
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2014-05-20 17:20:09 |
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