CVE-2024-11704

Name	CVE-2024-11704
Description	A double-free issue could have occurred in `sec_pkcs7_decoder_start_decrypt()` when handling an error path. Under specific conditions, the same symmetric key could have been freed twice, potentially leading to memory corruption. This vulnerability affects Firefox < 133, Thunderbird < 133, Firefox ESR < 128.7, and Thunderbird < 128.7.
Source	CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
References	DLA-4044-1, DLA-4045-1, DSA-5858-1, DSA-5861-1

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
firefox (PTS)	sid	135.0-1	fixed
firefox-esr (PTS)	bullseye	115.14.0esr-1~deb11u1	vulnerable
	bullseye (security)	128.7.0esr-1~deb11u1	fixed
	bookworm	128.5.0esr-1~deb12u1	vulnerable
	bookworm (security)	128.7.0esr-1~deb12u1	fixed
	sid, trixie	128.7.0esr-1	vulnerable
thunderbird (PTS)	bullseye	1:115.12.0-1~deb11u1	vulnerable
	bullseye (security)	1:128.7.0esr-1~deb11u1	fixed
	bookworm	1:128.5.0esr-1~deb12u1	vulnerable
	bookworm (security)	1:128.7.0esr-1~deb12u1	fixed
	sid, trixie	1:128.6.0esr-1	vulnerable

The information below is based on the following data on fixed versions.

Package	Type	Release	Fixed Version	Origin
firefox	source	(unstable)	134.0-1
firefox-esr	source	bullseye	128.7.0esr-1~deb11u1	DLA-4044-1
firefox-esr	source	bookworm	128.7.0esr-1~deb12u1	DSA-5858-1
firefox-esr	source	(unstable)	(unfixed)
thunderbird	source	bullseye	1:128.7.0esr-1~deb11u1	DLA-4045-1
thunderbird	source	bookworm	1:128.7.0esr-1~deb12u1	DSA-5861-1
thunderbird	source	(unstable)	(unfixed)

Notes

https://www.mozilla.org/en-US/security/advisories/mfsa2024-63/#CVE-2024-11704
https://www.mozilla.org/en-US/security/advisories/mfsa2025-09/#CVE-2024-11704
https://www.mozilla.org/en-US/security/advisories/mfsa2025-10/#CVE-2024-11704