CVE-2013-2596: Linux Kernel Integer Overflow Vulnerability

CVE-2013-2596 · Severity: critical · CVSS 7.8 · Exploited in the wild · Published 2022-09-15

An integer overflow vulnerability in the fb_mmap function in drivers/video/fbmem.c in the Linux kernel allows local users to create read-write memory mappings for the entirety of kernel memory. This flaw can be exploited via crafted /dev/graphics/fb0 mmap2 system calls to gain elevated privileges.

Technologies: Linux Kernel. Vendors: Linux.

Quick answers

Is CVE-2013-2596 exploited in the wild?
Yes. CVE-2013-2596 is known to be exploited in the wild, first recorded on 15 September 2022. Treat it as urgent.
How severe is CVE-2013-2596?
Critical severity, with a CVSS score of 7.8, published 15 September 2022.
Which products and versions are affected?
Linux Linux Kernel before 3.8.9; Motorola Android 4.1.2.
Is there a fix for CVE-2013-2596?
A patch was published on 2013-05-04: Linux kernel 3.8.9 released with fix. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2013-2596 attacked?
It is attacked with local access, in an operating system.
Am I affected by CVE-2013-2596?
Check whether you run Linux Kernel. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Affected products

  • Linux Linux Kernel before 3.8.9
  • Motorola Android 4.1.2

Timeline

  • 2013-04-16: disclosed: Mailing list disclosure of the vulnerability.
  • 2013-05-04: patched: Linux kernel 3.8.9 released with fix.
  • 2022-09-15: kev added: Added to CISA Known Exploited Vulnerabilities Catalog.
  • 2022-09-15: advisory: NVD publication date.

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