PT-2013-5086 · Linux+3 · Linux Kernel+3

Petr Matousek · Published 2013-11-19 · Updated 2023-02-13 · CVE-2013-4591

Positive Technologies (AI Summary)

CVSS v2.0

6.2

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 3.7.2

Description The issue is related to a buffer overflow in the nfs4 get acl uncached function, which can cause a denial of service, resulting in memory corruption and system crash. It may also have other unspecified impacts. This occurs when a local user makes a getxattr system call for the system.nfs4 acl extended attribute of a pathname on an NFSv4 filesystem.

Recommendations For Linux kernel versions prior to 3.7.2, update to version 3.7.2 or later to resolve the issue. As a temporary workaround, consider restricting access to the nfs4 get acl uncached function or limiting the use of the getxattr system call for the system.nfs4 acl extended attribute on NFSv4 filesystems until the update is applied.

Exploit

Fix

DoS

Buffer Overflow

Weakness Enumeration

CWE-119

Related Identifiers

CESA-2013_1645

CVE-2013-4591

RHSA-2013:1645

RHSA-2013_1645

RHSA-2014:0284

SUSE-SU-2015:0652-1

Affected Products

Centos

Linux Kernel

Red Hat

Suse

References · 20

• 🔥 https://github.com/torvalds/linux/commit/7d3e91a89b7adbc2831334def9e494dd9892f9af · Exploit
• 🔥 http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=7d3e91a89b7adbc2831334def9e494dd9892f9af · Exploit
• https://osv.dev/vulnerability/DEBIAN-CVE-2013-4591 · Vendor Advisory
• https://linux.oracle.com/errata/ELSA-2013-2585.html · Vendor Advisory
• https://ubuntu.com/security/CVE-2013-4591 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2013-4591 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2013-4591 · Vendor Advisory
• https://linux.oracle.com/errata/ELSA-2013-1645.html · Vendor Advisory
• http://rhn.redhat.com/errata/RHSA-2013-1645.html · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2013-4591 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2013-4591 · Security Note
• http://rhn.redhat.com/errata/RHSA-2014-0284.html · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2013-4591 · Security Note
• http://securityfocus.com/bid/63791 · Note
• http://kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.7.2 · Note