PT-2013-3559 · Linux+4 · Linux Kernel+4

Published 2013-06-04 · Updated 2023-02-13 · CVE-2013-2141

Positive Technologies (AI Summary)

CVSS v2.0

2.1

Low

Base vector

AV:L/AC:L/Au:N/C:P/I:N/A:N

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 3.8.9

Description The issue allows local users to obtain sensitive information from kernel memory. This is due to the do tkill function in kernel/signal.c not initializing a certain data structure, which can be exploited via a crafted application that makes a (1) tkill or (2) tgkill system call.

Recommendations For Linux kernel versions prior to 3.8.9, update to version 3.8.9 or later to resolve the issue. As a temporary workaround, consider restricting access to the tkill and tgkill system calls to minimize the risk of exploitation.

Exploit

Fix

Weakness Enumeration

CWE-399

Related Identifiers

ALT-PU-2013-1290

ALT-PU-2014-1010

CESA-2013_1801

CVE-2013-2141

DSA-2669-1

DSA-2766-1

RHSA-2013:1264

RHSA-2013:1292

RHSA-2013:1801

RHSA-2013_1292

RHSA-2013_1801

SUSE-SU-2015:0652-1

USN-1833-1

USN-1837-1

USN-1839-1

USN-1849-1

USN-1880-1

USN-1881-1

USN-1882-1

USN-1883-1

USN-1899-1

USN-1900-1

Affected Products

Alt Linux

Centos

Linux Kernel

Red Hat

Suse

References · 33

• 🔥 https://github.com/torvalds/linux/commit/b9e146d8eb3b9ecae5086d373b50fa0c1f3e7f0f · Exploit
• 🔥 http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=b9e146d8eb3b9ecae5086d373b50fa0c1f3e7f0f · Exploit
• https://ubuntu.com/security/notices/USN-1880-1 · Vendor Advisory
• http://mandriva.com/security/advisories?name=MDVSA-2013:176 · Vendor Advisory
• https://ubuntu.com/security/notices/USN-1900-1 · Vendor Advisory
• https://ubuntu.com/security/notices/USN-1899-1 · Vendor Advisory
• https://linux.oracle.com/errata/ELSA-2013-2589.html · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2013-2141 · Vendor Advisory
• http://ubuntu.com/usn/USN-1900-1 · Vendor Advisory
• https://ubuntu.com/security/notices/USN-1849-1 · Vendor Advisory
• http://lists.opensuse.org/opensuse-updates/2013-12/msg00129.html · Vendor Advisory
• https://ubuntu.com/security/notices/USN-1881-1 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2013-2141 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2013-2141 · Security Note
• https://ubuntu.com/security/notices/USN-1837-1 · Vendor Advisory