Secure testing team - Jan 2011 - Bug#610510: CVE-2010-4489: Integer Overflow in VP8 decoding leads to memory corruption

Package: libvpx
Severity: serious
Tags: security

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Hi,
the following CVE (Common Vulnerabilities & Exposures) id was
published for libvpx.

CVE-2010-4489[0]:
| Google Chrome before 8.0.552.215 does not properly handle WebM video,
| which allows remote attackers to cause a denial of service
| (out-of-bounds read) via unspecified vectors.  NOTE: this vulnerability
| exists because of a regression.


Please ask upstream for an isolated patch for squeeze.
- From the chromium side, they fixed this isssue with the following commits:
http://src.chromium.org/viewvc/chrome?view=rev&revision=65287
http://src.chromium.org/viewvc/chrome/trunk/deps/third_party/libvpx/source/libvpx/vp8/vp8_dx_iface.c?r1=65147&r2=65287&pathrev=65287
http://src.chromium.org/viewvc/chrome/trunk/deps/third_party/libvpx/source/libvpx/vp8/decoder/decodframe.c?r1=65147&r2=65287&pathrev=65287


If you fix the vulnerability please also make sure to include the
CVE id in your changelog entry.

For further information see:

[0] http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2010-4489
    http://security-tracker.debian.org/tracker/CVE-2010-4489

Cheers,
Giuseppe

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