What’s Vulnerable › Vulnerabilities

CVE-2024-2608

• Severity: high (CVSS 8.4 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2024-03-19 · updated 2026-06-17
• Weakness: CWE-680

Description

`AppendEncodedAttributeValue(), ExtraSpaceNeededForAttrEncoding()` and `AppendEncodedCharacters()` could have experienced integer overflows, causing underallocation of an output buffer leading to an out of bounds write. This vulnerability affects Firefox < 124, Firefox ESR < 115.9, and Thunderbird < 115.9.

Affected products

• Debian Linux: 10.0
• Mozilla Firefox: before 115.9.0; before 124.0 — fixed in 115.9.0, 124.0
• Mozilla Thunderbird: before 115.9.0 — fixed in 115.9.0

How to fix

Upgrade to a fixed version: Mozilla Firefox 115.9.0, 124.0; Mozilla Thunderbird 115.9.0. Check the vendor advisory for mitigations.

References

• https://bugzilla.mozilla.org/show_bug.cgi?id=1880692
• https://lists.debian.org/debian-lts-announce/2024/03/msg00022.html
• https://lists.debian.org/debian-lts-announce/2024/03/msg00028.html
• https://www.mozilla.org/security/advisories/mfsa2024-12/
• https://www.mozilla.org/security/advisories/mfsa2024-13/
• https://www.mozilla.org/security/advisories/mfsa2024-14/
• https://bugzilla.mozilla.org/show_bug.cgi?id=1880692
• https://lists.debian.org/debian-lts-announce/2024/03/msg00022.html
• https://lists.debian.org/debian-lts-announce/2024/03/msg00028.html
• https://www.mozilla.org/security/advisories/mfsa2024-12/
• https://www.mozilla.org/security/advisories/mfsa2024-13/
• https://www.mozilla.org/security/advisories/mfsa2024-14/

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