Vulnerability record

CVE-2013-2596

Linux Kernel Integer Overflow Vulnerability

Severity: HighExploitation: Exploitation confirmedCISA KEV
What should I do?

This vulnerability is in the CISA Known Exploited Vulnerabilities catalog: attackers are using it. If you run Linux, fix it now.

CISA required action: Apply updates per vendor instructions.

US federal civilian agencies must remediate by Oct 6, 2022.

Patch status

Official fix available since

Apply the vendor's update to every affected system. Check the fixed-in versions below where known.

Basis: NVD patch reference

Description

Integer overflow in the fb_mmap function in drivers/video/fbmem.c in the Linux kernel before 3.8.9, as used in a certain Motorola build of Android 4.1.2 and other products, allows local users to create a read-write memory mapping for the entirety of kernel memory, and consequently gain privileges, via crafted /dev/graphics/fb0 mmap2 system calls, as demonstrated by the Motochopper pwn program.

Source: NIST National Vulnerability Database. Official vulnerability data, reproduced as published.

Affected products

Products affected by this vulnerability, with versions and the source of each entry
ProductVendorAffected versionsFixed inSource
LinuxLinux>= 2.6.12, < 3.0.75; >= 3.1, < 3.2.45; >= 3.3, < 3.4.42; >= 3.5, < 3.8.93.0.75; 3.2.45; 3.4.42; 3.8.9KEV

Sources: KEV = CISA Known Exploited Vulnerabilities catalog.

Intelligence timeline

Developments from the last 30 days, newest first.

  1. CVSS scoredUpdateKEV

    CVE-2013-2596 scored CVSS 7.8: Linux Kernel, Linux Kernel Integer Overflow Vulnerability

    CISA lists this as exploited in the wild. Unpatched Kernel systems are exposed to active attacks now.

    Basis: NIST National Vulnerability Database

  2. Patch releasedUpdateKEV

    Patch released for CVE-2013-2596: Linux Kernel, Linux Kernel Integer Overflow Vulnerability

    An official fix is now available for Linux Kernel. This vulnerability is being exploited, so apply it promptly.

    Basis: NVD patch reference

1 earlier event is available with a subscription. See plans.

Coverage

We have not published a story about this vulnerability yet.

References

  • git.kernel.org https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=fc9bbca8f650e5f738af8806317c0a04…
  • nvd.nist.gov https://nvd.nist.gov/vuln/detail/CVE-2013-2596
  • forum.xda-developers.com http://forum.xda-developers.com/showthread.php?t=2255491
  • git.kernel.org http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=b4cbb197c7e7a68dbad0d491242e3c…
  • git.kernel.org http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=fc9bbca8f650e5f738af8806317c0a…
  • kb.juniper.net http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10761
  • marc.info http://marc.info/?l=linux-kernel&m=136616837923938&w=2
  • rhn.redhat.com http://rhn.redhat.com/errata/RHSA-2015-0695.html
  • rhn.redhat.com http://rhn.redhat.com/errata/RHSA-2015-0782.html
  • rhn.redhat.com http://rhn.redhat.com/errata/RHSA-2015-0803.html
  • droid-life.com http://www.droid-life.com/2013/04/09/root-method-released-for-droid-razr-hd-running-android-4-1-2-other-device…
  • droidrzr.com http://www.droidrzr.com/index.php/topic/15208-root-motochopper-yet-another-android-root-exploit/
  • kernel.org http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.8.9
  • mandriva.com http://www.mandriva.com/security/advisories?name=MDVSA-2013:176
  • oracle.com http://www.oracle.com/technetwork/topics/security/linuxbulletinjan2016-2867209.html
  • securityfocus.com http://www.securityfocus.com/bid/59264
  • github.com https://github.com/torvalds/linux/commit/b4cbb197c7e7a68dbad0d491242e3ca67420c13e
  • github.com https://github.com/torvalds/linux/commit/fc9bbca8f650e5f738af8806317c0a041a48ae4a
  • cisa.gov https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2013-2596