RHEL 6 : MRG (RHSA-2013:0829)

High Nessus Plugin ID 76660

Synopsis

The remote Red Hat host is missing one or more security updates.

Description

Updated kernel-rt packages that fix several security issues and multiple bugs are now available for Red Hat Enterprise MRG 2.3.

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.

Security fixes :

* It was found that the kernel-rt update RHBA-2012:0044 introduced an integer conversion issue in the Linux kernel's Performance Events implementation. This led to a user-supplied index into the perf_swevent_enabled array not being validated properly, resulting in out-of-bounds kernel memory access. A local, unprivileged user could use this flaw to escalate their privileges. (CVE-2013-2094, Important)

A public exploit for CVE-2013-2094 that affects Red Hat Enterprise MRG 2 is available. Refer to Red Hat Knowledge Solution 373743, linked to in the References, for further information and mitigation instructions for users who are unable to immediately apply this update.

* An integer overflow flaw, leading to a heap-based buffer overflow, was found in the way the Intel i915 driver in the Linux kernel handled the allocation of the buffer used for relocation copies. A local user with console access could use this flaw to cause a denial of service or escalate their privileges. (CVE-2013-0913, Important)

* It was found that the Linux kernel used effective user and group IDs instead of real ones when passing messages with SCM_CREDENTIALS ancillary data. A local, unprivileged user could leverage this flaw with a set user ID (setuid) application, allowing them to escalate their privileges. (CVE-2013-1979, Important)

* A race condition in install_user_keyrings(), leading to a NULL pointer dereference, was found in the key management facility. A local, unprivileged user could use this flaw to cause a denial of service. (CVE-2013-1792, Moderate)

* A NULL pointer dereference flaw was found in the Linux kernel's XFS file system implementation. A local user who is able to mount an XFS file system could use this flaw to cause a denial of service.
(CVE-2013-1819, Moderate)

* An information leak was found in the Linux kernel's POSIX signals implementation. A local, unprivileged user could use this flaw to bypass the Address Space Layout Randomization (ASLR) security feature.
(CVE-2013-0914, Low)

* A use-after-free flaw was found in the tmpfs implementation. A local user able to mount and unmount a tmpfs file system could use this flaw to cause a denial of service or, potentially, escalate their privileges. (CVE-2013-1767, Low)

* A NULL pointer dereference flaw was found in the Linux kernel's USB Inside Out Edgeport Serial Driver implementation. A local user with physical access to a system and with access to a USB device's tty file could use this flaw to cause a denial of service. (CVE-2013-1774, Low)

* A format string flaw was found in the ext3_msg() function in the Linux kernel's ext3 file system implementation. A local user who is able to mount an ext3 file system could use this flaw to cause a denial of service or, potentially, escalate their privileges.
(CVE-2013-1848, Low)

* A heap-based buffer overflow flaw was found in the Linux kernel's cdc-wdm driver, used for USB CDC WCM device management. An attacker with physical access to a system could use this flaw to cause a denial of service or, potentially, escalate their privileges. (CVE-2013-1860, Low)

* A heap-based buffer overflow in the way the tg3 Ethernet driver parsed the vital product data (VPD) of devices could allow an attacker with physical access to a system to cause a denial of service or, potentially, escalate their privileges. (CVE-2013-1929, Low)

* Information leaks in the Linux kernel's cryptographic API could allow a local user who has the CAP_NET_ADMIN capability to leak kernel stack memory to user-space. (CVE-2013-2546, CVE-2013-2547, CVE-2013-2548, Low)

* Information leaks in the Linux kernel could allow a local, unprivileged user to leak kernel stack memory to user-space.
(CVE-2013-2634, CVE-2013-2635, CVE-2013-3076, CVE-2013-3222, CVE-2013-3224, CVE-2013-3225, CVE-2013-3231, Low)

Red Hat would like to thank Andy Lutomirski for reporting CVE-2013-1979. CVE-2013-1792 was discovered by Mateusz Guzik of Red Hat EMEA GSS SEG Team.

Solution

Update the affected packages.

See Also

https://access.redhat.com/solutions/373743

https://access.redhat.com/errata/RHBA-2012:0044

http://www.nessus.org/u?687515f3

https://access.redhat.com/errata/RHSA-2013:0829

https://access.redhat.com/security/cve/cve-2013-1792

https://access.redhat.com/security/cve/cve-2013-1767

https://access.redhat.com/security/cve/cve-2013-0913

https://access.redhat.com/security/cve/cve-2013-1774

https://access.redhat.com/security/cve/cve-2013-2094

https://access.redhat.com/security/cve/cve-2013-1929

https://access.redhat.com/security/cve/cve-2013-3231

https://access.redhat.com/security/cve/cve-2013-2635

https://access.redhat.com/security/cve/cve-2013-1860

https://access.redhat.com/security/cve/cve-2013-3225

https://access.redhat.com/security/cve/cve-2013-3224

https://access.redhat.com/security/cve/cve-2013-2634

https://access.redhat.com/security/cve/cve-2013-3076

https://access.redhat.com/security/cve/cve-2013-2548

https://access.redhat.com/security/cve/cve-2013-1819

https://access.redhat.com/security/cve/cve-2013-3222

https://access.redhat.com/security/cve/cve-2013-0914

https://access.redhat.com/security/cve/cve-2013-1848

https://access.redhat.com/security/cve/cve-2013-2546

https://access.redhat.com/security/cve/cve-2013-2547

https://access.redhat.com/security/cve/cve-2013-1979

Plugin Details

Severity: High

ID: 76660

File Name: redhat-RHSA-2013-0829.nasl

Version: 1.16

Type: local

Agent: unix

Published: 2014/07/22

Updated: 2019/10/24

Dependencies: 122878, 12634

Risk Information

Risk Factor: High

CVSS v2.0

Base Score: 7.2

Temporal Score: 6.3

Vector: CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C

Temporal Vector: CVSS2#E:H/RL:OF/RC:C

Vulnerability Information

CPE: p-cpe:/a:redhat:enterprise_linux:kernel-rt, p-cpe:/a:redhat:enterprise_linux:kernel-rt-debug, p-cpe:/a:redhat:enterprise_linux:kernel-rt-debug-debuginfo, p-cpe:/a:redhat:enterprise_linux:kernel-rt-debug-devel, p-cpe:/a:redhat:enterprise_linux:kernel-rt-debuginfo, p-cpe:/a:redhat:enterprise_linux:kernel-rt-debuginfo-common-x86_64, p-cpe:/a:redhat:enterprise_linux:kernel-rt-devel, p-cpe:/a:redhat:enterprise_linux:kernel-rt-doc, p-cpe:/a:redhat:enterprise_linux:kernel-rt-firmware, p-cpe:/a:redhat:enterprise_linux:kernel-rt-trace, p-cpe:/a:redhat:enterprise_linux:kernel-rt-trace-debuginfo, p-cpe:/a:redhat:enterprise_linux:kernel-rt-trace-devel, p-cpe:/a:redhat:enterprise_linux:kernel-rt-vanilla, p-cpe:/a:redhat:enterprise_linux:kernel-rt-vanilla-debuginfo, p-cpe:/a:redhat:enterprise_linux:kernel-rt-vanilla-devel, p-cpe:/a:redhat:enterprise_linux:mrg-rt-release, cpe:/o:redhat:enterprise_linux:6

Required KB Items: Host/local_checks_enabled, Host/RedHat/release, Host/RedHat/rpm-list, Host/cpu

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 2013/05/20

Vulnerability Publication Date: 2013/02/28

Exploitable With

CANVAS (CANVAS)

Core Impact

Reference Information

CVE: CVE-2013-0913, CVE-2013-0914, CVE-2013-1767, CVE-2013-1774, CVE-2013-1792, CVE-2013-1819, CVE-2013-1848, CVE-2013-1860, CVE-2013-1929, CVE-2013-1979, CVE-2013-2094, CVE-2013-2546, CVE-2013-2547, CVE-2013-2548, CVE-2013-2634, CVE-2013-2635, CVE-2013-3076, CVE-2013-3222, CVE-2013-3224, CVE-2013-3225, CVE-2013-3231

BID: 58177, 58202, 58301, 58368, 58382, 58426, 58427, 58510, 58597, 58600, 58908, 59377, 59383, 59385, 59390, 59398, 59538, 59846

RHSA: 2013:0829