CVE-2024-8387 — Out-of-bounds Write in Mozilla Firefox

CWE-787 — Out-of-bounds WriteCWE-119 — Improper Restriction of Operations within the Bounds of a Memory BufferCWE-120 — Classic Buffer Overflow12 documents8 sources
Severity
9.8CRITICALNVD
EPSS
0.5%
top 32.25%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
3
Mozilla FirefoxMozilla Firefox ESRMozilla Thunderbird
Timeline
PublishedSep 3
Latest updateSep 23

Description

Memory safety bugs present in Firefox 129, Firefox ESR 128.1, and Thunderbird 128.1. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 130, Firefox ESR < 128.2, and Thunderbird < 128.2.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HExploitability: 3.9 | Impact: 5.9

Affected Packages8 packages

▶CVEListV5mozilla/firefoxunspecified — 130
▶CVEListV5mozilla/firefox_esrunspecified — 128.2
▶Ubuntumozilla/firefox< 130.0+build2-0ubuntu0.20.04.1
▶NVDmozilla/firefox129.0

🔴Vulnerability Details

5
OSV
firefox regressions↗2024-09-23
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OSV
firefox vulnerabilities↗2024-09-05
▶
CVEList
CVE-2024-8387: Memory safety bugs present in Firefox 129, Firefox ESR 128↗2024-09-03
▶
OSV
CVE-2024-8387: Memory safety bugs present in Firefox 129, Firefox ESR 128↗2024-09-03
▶
GHSA
GHSA-m294-4vh4-9qwg: Memory safety bugs present in Firefox 129, Firefox ESR 128↗2024-09-03
▶

📋Vendor Advisories

6
Ubuntu
Firefox vulnerabilities↗2024-09-05
▶
Red Hat
mozilla: Memory safety bugs fixed in Firefox 130, Firefox ESR 128.2, and Thunderbird 128.2↗2024-09-03
▶
Debian
CVE-2024-8387: firefox - Memory safety bugs present in Firefox 129, Firefox ESR 128.1, and Thunderbird 12...↗2024
▶
Mozilla
Mozilla Foundation Security Advisory 2024-43: CVE-2024-8387↗
▶
Mozilla
Mozilla Foundation Security Advisory 2024-40: CVE-2024-8387↗
▶
CVE-2024-8387 — Out-of-bounds Write in Mozilla Firefox | cvebase