| 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, ELA-1203-1, ELA-1212-1 |
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| samba (PTS) | jessie, jessie (lts) | 2:4.2.14+dfsg-0+deb8u16 | fixed |
| stretch (security) | 2:4.5.16+dfsg-1+deb9u4 | vulnerable | |
| stretch (lts), stretch | 2:4.5.16+dfsg-1+deb9u5 | fixed | |
| buster (security), buster, buster (lts) | 2:4.9.5+dfsg-5+deb10u5 | fixed | |
| bullseye (security), bullseye | 2:4.13.13+dfsg-1~deb11u6 | fixed | |
| bookworm (security), bookworm | 2:4.17.12+dfsg-0+deb12u1 | fixed | |
| sid, trixie | 2:4.21.1+dfsg-2 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|---|---|---|---|---|---|
| samba | source | jessie | 2:4.2.14+dfsg-0+deb8u16 | ELA-1212-1 | ||
| samba | source | stretch | 2:4.5.16+dfsg-1+deb9u5 | ELA-1203-1 | ||
| 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