CVE-2017-7753

9.1 CRITICAL

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

Description

An out-of-bounds read occurs when applying style rules to pseudo-elements, such as ::first-line, using cached style data. This vulnerability affects Thunderbird < 52.3, Firefox ESR < 52.3, and Firefox < 55.

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:N/A:H

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory

http://www.securityfocus.com/bid/100315

Source: security@mozilla.org

Third Party Advisory VDB Entry

http://www.securitytracker.com/id/1039124

Source: security@mozilla.org

Third Party Advisory VDB Entry

https://access.redhat.com/errata/RHSA-2017:2456

Source: security@mozilla.org

Third Party Advisory

https://access.redhat.com/errata/RHSA-2017:2534

Source: security@mozilla.org

Third Party Advisory

https://bugzilla.mozilla.org/show_bug.cgi?id=1353312

Source: security@mozilla.org

Exploit Issue Tracking Patch Vendor Advisory

https://security.gentoo.org/glsa/201803-14

Source: security@mozilla.org

Third Party Advisory

https://www.debian.org/security/2017/dsa-3928

Source: security@mozilla.org

Third Party Advisory

https://www.debian.org/security/2017/dsa-3968

Source: security@mozilla.org

Third Party Advisory

https://www.mozilla.org/security/advisories/mfsa2017-18/

Source: security@mozilla.org

Vendor Advisory

https://www.mozilla.org/security/advisories/mfsa2017-19/

Source: security@mozilla.org

Vendor Advisory

https://www.mozilla.org/security/advisories/mfsa2017-20/

Source: security@mozilla.org

Vendor Advisory

http://www.securityfocus.com/bid/100315