HTTP/2 Out-of-Bounds Read Vulnerability in Thunderbird and Firefox

CVE-2017-5446 · HIGH Severity

AV:N/AC:L/AU:N/C:P/I:P/A:P

An out-of-bounds read when an HTTP/2 connection to a servers sends "DATA" frames with incorrect data content. This leads to a potentially exploitable crash. This vulnerability affects Thunderbird < 52.1, Firefox ESR < 45.9, Firefox ESR < 52.1, and Firefox < 53.

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