PT-2012-2268 · Linux+2 · Linux Kernel+2

Jüri Aedla · Published 2012-01-19 · Updated 2024-06-15 · CVE-2012-0056

Positive Technologies (AI Summary)

CVSS v2.0

6.9

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 3.2.2

Description The issue concerns the mem write function in the Linux kernel. When Address Space Layout Randomization (ASLR) is disabled, this function does not properly check permissions when writing to the /proc/(pid)/mem file. This allows local users to gain privileges by modifying process memory. This has been demonstrated by the Mempodipper exploit.

Recommendations For Linux kernel versions prior to 3.2.2, update to version 3.2.2 or later to resolve the issue. As a temporary workaround, consider enabling ASLR to minimize the risk of exploitation.

Exploit

Fix

Weakness Enumeration

CWE-264

Related Identifiers

CESA-2012_0052

CVE-2012-0056

OPENSUSE-SU-2024:10128-1

RHSA-2012:0052

RHSA-2012:0061

RHSA-2012_0052

USN-1336-1

USN-1342-1

USN-1364-1

Affected Products

Centos

Linux Kernel

Red Hat

References · 116

• 🔥 https://exploit-db.com/exploits/35161 · Exploit
• 🔥 https://exploit-db.com/exploits/18411 · Exploit
• https://osv.dev/vulnerability/UBUNTU-CVE-2012-0056 · Vendor Advisory
• https://osv.dev/vulnerability/openSUSE-SU-2024:10128-1 · Vendor Advisory
• http://redhat.com/support/errata/RHSA-2012-0061.html · Vendor Advisory
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2012-0056 · Security Note
• http://kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.2.2 · Vendor Advisory
• http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commitdiff%3Bh=e268337dfe26dfc7efd422a804dbb27977a3cccc · Vendor Advisory
• http://ubuntu.com/usn/usn-1336-1 · Vendor Advisory
• https://linux.oracle.com/errata/ELSA-2012-2001.html · Vendor Advisory
• https://ubuntu.com/security/notices/USN-1364-1 · Vendor Advisory
• http://redhat.com/support/errata/RHSA-2012-0052.html · Vendor Advisory
• https://linux.oracle.com/errata/ELSA-2012-0052.html · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2012-0056 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2012-0056 · Security Note