CVE-2022-2127

Name	CVE-2022-2127
Description	An out-of-bounds read vulnerability was found in Samba due to insufficient length checks in winbindd_pam_auth_crap.c. When performing NTLM authentication, the client replies to cryptographic challenges back to the server. These replies have variable lengths, and Winbind fails to check the lan manager response length. When Winbind is used for NTLM authentication, a maliciously crafted request can trigger an out-of-bounds read in Winbind, possibly resulting in a crash.
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-3792-1, DSA-5477-1, DSA-5647-1

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
samba (PTS)	bullseye (security), bullseye	2:4.13.13+dfsg-1~deb11u6	fixed
	bookworm, bookworm (security)	2:4.17.12+dfsg-0+deb12u1	fixed
	sid, trixie	2:4.21.2+dfsg-4	fixed

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

Package	Type	Release	Fixed Version	Origin
samba	source	buster	2:4.9.5+dfsg-5+deb10u5	DLA-3792-1
samba	source	bullseye	2:4.13.13+dfsg-1~deb11u6	DSA-5647-1
samba	source	bookworm	2:4.17.10+dfsg-0+deb12u1	DSA-5477-1
samba	source	(unstable)	2:4.18.5+dfsg-1

https://www.samba.org/samba/security/CVE-2022-2127.html
In scope for continued Samba support