CVE-2018-5101

HIGH

Firefox < 58 - Use-After-Free via First-Letter Style Manipulation

Title source: llm
STIX 2.1

Description

A use-after-free vulnerability can occur when manipulating floating "first-letter" style elements, resulting in a potentially exploitable crash. This vulnerability affects Firefox < 58.

References (5)

Core 5
Core References
Third Party Advisory, VDB Entry vdb-entry x_refsource_sectrack
http://www.securitytracker.com/id/1040270
Issue Tracking, Permissions Required x_refsource_confirm
https://bugzilla.mozilla.org/show_bug.cgi?id=1417661
Third Party Advisory vendor-advisory x_refsource_ubuntu
https://usn.ubuntu.com/3544-1/
Third Party Advisory, VDB Entry vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/102786
Vendor Advisory x_refsource_confirm
https://www.mozilla.org/security/advisories/mfsa2018-02/

Scores

CVSS v3 7.5
EPSS 0.0153
EPSS Percentile 81.6%
Attack Vector NETWORK
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Details

CWE
CWE-416
Status published
Products (4)
canonical/ubuntu_linux 14.04
canonical/ubuntu_linux 16.04
canonical/ubuntu_linux 17.10
mozilla/firefox < 57.0.4
Published Jun 11, 2018
Tracked Since Feb 18, 2026