CVE-2024-2608
`AppendEncodedAttributeValue(), ExtraSpaceNeededForAttrEncoding()` and `AppendEncodedCharacters()` could have experienced integer overflows, causing underallocation of an output buffer leading to an out of bounds write.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.39%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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.
- CVSS 3.1
- 8.4 HIGHCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 0.39% probability · 32th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-680
- Affected
- mozilla/firefox · mozilla/thunderbird · debian/debian linux
- Source
- security@mozilla.org
References
- https://bugzilla.mozilla.org/show_bug.cgi?id=1880692Exploit, Issue Tracking, Vendor Advisory
- https://lists.debian.org/debian-lts-announce/2024/03/msg00022.htmlMailing List
- https://lists.debian.org/debian-lts-announce/2024/03/msg00028.htmlMailing List
- https://www.mozilla.org/security/advisories/mfsa2024-12/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2024-13/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2024-14/Vendor Advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=1880692Exploit, Issue Tracking, Vendor Advisory
- https://lists.debian.org/debian-lts-announce/2024/03/msg00022.htmlMailing List
- https://lists.debian.org/debian-lts-announce/2024/03/msg00028.htmlMailing List
- https://www.mozilla.org/security/advisories/mfsa2024-12/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2024-13/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2024-14/Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.