CVE-2017-7753

CRITICAL

Thunderbird < 52.3, Firefox ESR < 52.3, Firefox < 55 - Info Disclosure

Title source: llm
STIX 2.1

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.

References (11)

Core 11
Core References
Vendor Advisory x_refsource_confirm
https://www.mozilla.org/security/advisories/mfsa2017-19/
Vendor Advisory x_refsource_confirm
https://www.mozilla.org/security/advisories/mfsa2017-20/
Third Party Advisory vendor-advisory x_refsource_debian
https://www.debian.org/security/2017/dsa-3968
Vendor Advisory x_refsource_confirm
https://www.mozilla.org/security/advisories/mfsa2017-18/
Third Party Advisory vendor-advisory x_refsource_redhat
https://access.redhat.com/errata/RHSA-2017:2456
Third Party Advisory vendor-advisory x_refsource_redhat
https://access.redhat.com/errata/RHSA-2017:2534
Third Party Advisory, VDB Entry vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/100315
Exploit, Issue Tracking, Patch, Vendor Advisory x_refsource_confirm
https://bugzilla.mozilla.org/show_bug.cgi?id=1353312
Third Party Advisory, VDB Entry vdb-entry x_refsource_sectrack
http://www.securitytracker.com/id/1039124
Third Party Advisory vendor-advisory x_refsource_gentoo
https://security.gentoo.org/glsa/201803-14
Third Party Advisory vendor-advisory x_refsource_debian
https://www.debian.org/security/2017/dsa-3928

Scores

CVSS v3 9.1
EPSS 0.0172
EPSS Percentile 82.6%
Attack Vector NETWORK
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

Details

CWE
CWE-125
Status published
Products (17)
debian/debian_linux 8.0
debian/debian_linux 9.0
mozilla/firefox < 55.0
mozilla/thunderbird < 52.3.0
redhat/enterprise_linux 6.0
redhat/enterprise_linux 7.0
redhat/enterprise_linux_desktop 6.0
redhat/enterprise_linux_desktop 7.0
redhat/enterprise_linux_server 6.0
redhat/enterprise_linux_server 7.0
... and 7 more
Published Jun 11, 2018
Tracked Since Feb 18, 2026