CVE-2025-61730

Name	CVE-2025-61730
Description	During the TLS 1.3 handshake if multiple messages are sent in records that span encryption level boundaries (for instance the Client Hello and Encrypted Extensions messages), the subsequent messages may be processed before the encryption level changes. This can cause some minor information disclosure if a network-local attacker can inject messages during the handshake.
Source	CVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
Debian Bugs	1125916, 1125917

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
golang-1.15 (PTS)	bullseye	1.15.15-1~deb11u4	vulnerable
golang-1.19 (PTS)	bookworm	1.19.8-2	vulnerable
golang-1.24 (PTS)	trixie	1.24.4-1	vulnerable
	forky	1.24.9-1	vulnerable
	sid	1.24.12-1	fixed
golang-1.25 (PTS)	forky	1.25.3-1	vulnerable
	sid	1.25.7-1	fixed

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

Package	Type	Release	Fixed Version	Debian Bugs
golang-1.15	source	(unstable)	(unfixed)
golang-1.19	source	(unstable)	(unfixed)
golang-1.24	source	(unstable)	1.24.12-1	1125917
golang-1.25	source	(unstable)	1.25.6-1	1125916

Notes

[bullseye] - golang-1.15 <postponed> (Limited support, minor issue, follow bookworm DSAs/point-releases)
https://groups.google.com/g/golang-announce/c/Vd2tYVM8eUc
https://github.com/golang/go/issues/76443
Fixed by: https://github.com/golang/go/commit/525dd853633f90d6038719d9a48cba3770ca71ea (go1.25.6)
Fixed by: https://github.com/golang/go/commit/ad2cd043db66cd36e1f55359638729d2c8ff3d99 (go1.24.12)