CVE-2024-34447

Name	CVE-2024-34447
Description	An issue was discovered in Bouncy Castle Java Cryptography APIs before BC 1.78. When endpoint identification is enabled in the BCJSSE and an SSL socket is created without an explicit hostname (as happens with HttpsURLConnection), hostname verification could be performed against a DNS-resolved IP address in some situations, opening up a possibility of DNS poisoning.
Source	CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
Debian Bugs	1070655

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
bouncycastle (PTS)	bullseye	1.68-2	vulnerable
	bookworm	1.72-2	vulnerable
	trixie, sid	1.80-3	fixed

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

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
bouncycastle	source	(unstable)	1.80-1			1070655

Notes

[bookworm] - bouncycastle <no-dsa> (Minor issue)
[bullseye] - bouncycastle <no-dsa> (Minor issue)
[buster] - bouncycastle <postponed> (Minor issue)
https://github.com/bcgit/bc-java/wiki/CVE%E2%80%902024%E2%80%9034447
https://github.com/bcgit/bc-java/commit/c47f6444a744396135322784b5fea1d35d46a8a7 (r1rv78v1)
https://github.com/bcgit/bc-java/issues/1656