CVE-2024-3861 — Use After Free in Mozilla Firefox

CWE-416 — Use After Free11 documents8 sources
Severity
4.0MEDIUMNVD
EPSS
0.1%
top 67.58%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
4
Mozilla FirefoxMozilla Firefox ESRMozilla Thunderbird+1 more
Timeline
PublishedApr 16
Latest updateApr 25

Description

If an AlignedBuffer were assigned to itself, the subsequent self-move could result in an incorrect reference count and later use-after-free. This vulnerability affects Firefox < 125, Firefox ESR < 115.10, and Thunderbird < 115.10.

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:NExploitability: 2.5 | Impact: 1.4

Affected Packages6 packages

▶CVEListV5mozilla/firefoxunspecified — 125
▶NVDmozilla/firefox< 115.0+1
▶CVEListV5mozilla/firefox_esrunspecified — 115.10
▶CVEListV5mozilla/thunderbirdunspecified — 115.10
▶NVDmozilla/thunderbird< 115.0

Also affects: Debian Linux 10.0

🔴Vulnerability Details

3
OSV
CVE-2024-3861: If an AlignedBuffer were assigned to itself, the subsequent self-move could result in an incorrect reference count and later use-after-free↗2024-04-16
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GHSA
GHSA-mvc5-vcrh-v937: If an AlignedBuffer were assigned to itself, the subsequent self-move could result in an incorrect reference count and later use-after-free↗2024-04-16
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CVEList
CVE-2024-3861: If an AlignedBuffer were assigned to itself, the subsequent self-move could result in an incorrect reference count and later use-after-free↗2024-04-16
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📋Vendor Advisories

7
Ubuntu
Thunderbird vulnerabilities↗2024-04-25
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Ubuntu
Firefox vulnerabilities↗2024-04-24
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Red Hat
Mozilla: Potential use-after-free due to AlignedBuffer self-move↗2024-04-16
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Debian
CVE-2024-3861: firefox - If an AlignedBuffer were assigned to itself, the subsequent self-move could resu...↗2024
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Mozilla
Mozilla Foundation Security Advisory 2024-19: CVE-2024-3861↗
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CVE-2024-3861 — Use After Free in Mozilla Firefox | cvebase