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CVE-2013-0796: WebGL crash with Mesa graphics driver on Linux

The WebGL subsystem in Mozilla Firefox before 20.0, Firefox ESR 17.x before 17.0.5, Thunderbird before 17.0.5, Thunderbird ESR 17.x before 17.0.5, and SeaMonkey before 2.17 on Linux does not properly interact with Mesa drivers, which allows remote attackers to execute arbitrary code or cause a denial of service (free of unallocated memory) via unspecified vectors.

CVE
#web#linux#dos#intel#perl#firefox

Mozilla Foundation Security Advisory 2013-35

Announced

April 2, 2013

Reporter

miaubiz

Impact

Critical

Products

Firefox, Firefox ESR, SeaMonkey, Thunderbird, Thunderbird ESR

Fixed in

  • Firefox 20
  • Firefox ESR 17.0.5
  • SeaMonkey 2.17
  • Thunderbird 17.0.5
  • Thunderbird ESR 17.0.5

Description

Security researcher miaubiz used the Address Sanitizer tool to discover a crash in WebGL rendering when memory is freed that has not previously been allocated. This issue only affects Linux users who have Intel Mesa graphics drivers. The resulting crash could be potentially exploitable.

In general these flaws cannot be exploited through email in the Thunderbird and SeaMonkey products because scripting is disabled, but are potentially a risk in browser or browser-like contexts in those products.

References

  • freeing unallocated address with webgl (CVE-2013-0796)

  • Blacklist Mesa in ESR17

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