CVE-2017-5396

9.8 CRITICAL

Published: June 11, 2018 Modified: November 25, 2025

Description

A use-after-free vulnerability in the Media Decoder when working with media files when some events are fired after the media elements are freed from memory. This vulnerability affects Thunderbird < 45.7, Firefox ESR < 45.7, and Firefox < 51.

AI Explanation

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CVSS v3.x Details

0.0 Low Medium High Critical 10.0

Vector String

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory

http://rhn.redhat.com/errata/RHSA-2017-0190.html

Source: security@mozilla.org

Third Party Advisory

http://rhn.redhat.com/errata/RHSA-2017-0238.html

Source: security@mozilla.org

Third Party Advisory

http://www.securityfocus.com/bid/95769

Source: security@mozilla.org

Third Party Advisory VDB Entry

http://www.securitytracker.com/id/1037693

Source: security@mozilla.org

Third Party Advisory VDB Entry

https://bugzilla.mozilla.org/show_bug.cgi?id=1329403

Source: security@mozilla.org

Exploit Issue Tracking Patch Vendor Advisory

https://security.gentoo.org/glsa/201702-13

Source: security@mozilla.org

Third Party Advisory

https://security.gentoo.org/glsa/201702-22

Source: security@mozilla.org

Third Party Advisory

https://www.debian.org/security/2017/dsa-3771

Source: security@mozilla.org

Third Party Advisory

https://www.debian.org/security/2017/dsa-3832

Source: security@mozilla.org

Third Party Advisory

https://www.mozilla.org/security/advisories/mfsa2017-01/

Source: security@mozilla.org

Vendor Advisory

https://www.mozilla.org/security/advisories/mfsa2017-02/

Source: security@mozilla.org

Vendor Advisory

https://www.mozilla.org/security/advisories/mfsa2017-03/

Source: security@mozilla.org

Vendor Advisory

http://rhn.redhat.com/errata/RHSA-2017-0190.html