CVE-2023-29542

Name	CVE-2023-29542
Description	A newline in a filename could have been used to bypass the file extension security mechanisms that replace malicious file extensions such as .lnk with .download. This could have led to accidental execution of malicious code. This bug only affects Firefox and Thunderbird on Windows. Other versions of Firefox and Thunderbird are unaffected. This vulnerability affects Firefox < 112, Firefox ESR < 102.10, and Thunderbird < 102.10.
Source	CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
firefox (PTS)	sid	125.0.2-1	fixed
firefox-esr (PTS)	buster	91.12.0esr-1~deb10u1	fixed
	buster (security)	115.10.0esr-1~deb10u1	fixed
	bullseye	115.7.0esr-1~deb11u1	fixed
	bullseye (security)	115.10.0esr-1~deb11u1	fixed
	bookworm	115.7.0esr-1~deb12u1	fixed
	bookworm (security)	115.10.0esr-1~deb12u1	fixed
	trixie	115.8.0esr-1	fixed
	sid	115.10.0esr-1	fixed
thunderbird (PTS)	buster	1:91.12.0-1~deb10u1	fixed
	buster (security)	1:115.10.1-1~deb10u1	fixed
	bullseye	1:115.7.0-1~deb11u1	fixed
	bullseye (security)	1:115.10.1-1~deb11u1	fixed
	bookworm	1:115.7.0-1~deb12u1	fixed
	bookworm (security)	1:115.10.1-1~deb12u1	fixed
	sid	1:115.10.1-1	fixed

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

Package	Type	Release	Fixed Version
firefox	source	(unstable)	(not affected)
firefox-esr	source	(unstable)	(not affected)
thunderbird	source	(unstable)	(not affected)

Notes

- firefox <not-affected> (Only affects Firefox on Windows)
- firefox-esr <not-affected> (Only affects Firefox ESR on Windows)
- thunderbird <not-affected> (Only affects Thunderbird on Windows)
https://www.mozilla.org/en-US/security/advisories/mfsa2023-13/#CVE-2023-29542
https://www.mozilla.org/en-US/security/advisories/mfsa2023-14/#CVE-2023-29542