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MFSA2017-12 Firefox: Security vulnerabilities fixed in Firefox ESR 52.1 (CVE-2017-5448)

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MFSA2017-12 Firefox: Security vulnerabilities fixed in Firefox ESR 52.1 (CVE-2017-5448)

Severity
8
CVSS
(AV:N/AC:L/Au:N/C:P/I:P/A:P)
Published
04/19/2017
Created
07/25/2018
Added
04/20/2017
Modified
08/13/2018

Description

An out-of-bounds write in "ClearKeyDecryptor" while decrypting some Clearkey-encrypted media content. The "ClearKeyDecryptor" code runs within the Gecko Media Plugin (GMP) sandbox. If a second mechanism is found to escape the sandbox, this vulnerability allows for the writing of arbitrary data within memory, resulting in a potentially exploitable crash. This vulnerability affects Firefox ESR < 45.9, Firefox ESR < 52.1, and Firefox < 53.

Solution(s)

  • mozilla-firefox-esr-upgrade-52_1

References

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