PT-2012-4775 · Linux+3 · Linux Kernel+3

Petr Matousek · Published 2012-08-24 · Updated 2023-02-13 · CVE-2012-3511

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 3.4.5

Description The issue is related to multiple race conditions in the madvise remove function in mm/madvise.c. This can be exploited by local users to cause a denial of service, resulting in a use-after-free condition and potentially crashing the system. The exploitation vectors involve either a munmap or a close system call.

Recommendations For Linux kernel versions prior to 3.4.5, update to version 3.4.5 or later to resolve the issue.

Exploit

Fix

DoS

Race Condition

Weakness Enumeration

CWE-362

Related Identifiers

CESA-2012_1426

CVE-2012-3511

RHSA-2012:1426

RHSA-2012:1491

RHSA-2012_1426

RHSA-2013:1292

RHSA-2013_1292

SUSE-SU-2015:0652-1

USN-1260-1

USN-1514-1

USN-1529-1

USN-1532-1

USN-1533-1

USN-1539-1

USN-1567-1

USN-1572-1

USN-1573-1

USN-1574-1

USN-1577-1

Affected Products

Centos

Linux Kernel

Red Hat

Suse

References · 36

• 🔥 https://github.com/torvalds/linux/commit/9ab4233dd08036fe34a89c7dc6f47a8bf2eb29eb · Exploit
• https://ubuntu.com/security/CVE-2012-3511 · Vendor Advisory
• https://ubuntu.com/security/notices/USN-1574-1 · Vendor Advisory
• https://bugzilla.redhat.com/show_bug.cgi?id=849734 · Patch
• https://security-tracker.debian.org/tracker/CVE-2012-3511 · Vendor Advisory
• http://ubuntu.com/usn/USN-1577-1 · Vendor Advisory
• http://ubuntu.com/usn/USN-1572-1 · Vendor Advisory
• https://ubuntu.com/security/notices/USN-1514-1 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2012-3511 · Vendor Advisory
• https://ubuntu.com/security/notices/USN-1577-1 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2012-3511 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2012-3511 · Security Note
• https://linux.oracle.com/errata/ELSA-2012-2044.html · Vendor Advisory
• https://ubuntu.com/security/notices/USN-1529-1 · Vendor Advisory
• https://linux.oracle.com/errata/ELSA-2012-2043.html · Vendor Advisory