Heap-based Buffer Overflow Affecting firefox package, versions <0:115.6.0-1.el8_8


Severity

Recommended
0.0
high
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.67% (81st percentile)

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  • Snyk IDSNYK-RHEL8-FIREFOX-6141472
  • published2 Jan 2024
  • disclosed19 Dec 2023

Introduced: 19 Dec 2023

CVE-2023-6856  (opens in a new tab)
CWE-122  (opens in a new tab)

How to fix?

Upgrade RHEL:8 firefox to version 0:115.6.0-1.el8_8 or higher.
This issue was patched in RHSA-2024:0011.

NVD Description

Note: Versions mentioned in the description apply only to the upstream firefox package and not the firefox package as distributed by RHEL. See How to fix? for RHEL:8 relevant fixed versions and status.

The WebGL DrawElementsInstanced method was susceptible to a heap buffer overflow when used on systems with the Mesa VM driver. This issue could allow an attacker to perform remote code execution and sandbox escape. This vulnerability affects Firefox ESR < 115.6, Thunderbird < 115.6, and Firefox < 121.

CVSS Scores

version 3.1