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Access Restriction Bypass The advisory has been revoked - it doesn't affect any version of package thunderbird  (opens in a new tab)

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EPSS
1.89% (80th percentile)

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  • Snyk IDSNYK-UBUNTU1304-THUNDERBIRD-648833
  • published25 Apr 2012
  • disclosed25 Apr 2012
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Introduced: 25 Apr 2012

CVE-2012-0475  (opens in a new tab)
CWE-264  (opens in a new tab)

Amendment

The Ubuntu security team deemed this advisory irrelevant for Ubuntu:13.04.

NVD Description

Note: Versions mentioned in the description apply only to the upstream thunderbird package and not the thunderbird package as distributed by Ubuntu.

Mozilla Firefox 4.x through 11.0, Thunderbird 5.0 through 11.0, and SeaMonkey before 2.9 do not properly construct the Origin and Sec-WebSocket-Origin HTTP headers, which might allow remote attackers to bypass an IPv6 literal ACL via a cross-site (1) XMLHttpRequest or (2) WebSocket operation involving a nonstandard port number and an IPv6 address that contains certain zero fields.