| Name | CVE-2021-23192 |
| Description | A flaw was found in the way samba implemented DCE/RPC. If a client to a Samba server sent a very large DCE/RPC request, and chose to fragment it, an attacker could replace later fragments with their own data, bypassing the signature requirements. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub code/issues, web search, more) |
| References | DSA-5003-1 |
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| samba (PTS) | stretch | 2:4.5.16+dfsg-1+deb9u2 | fixed |
| stretch (security) | 2:4.5.16+dfsg-1+deb9u4 | fixed | |
| buster, buster (security) | 2:4.9.5+dfsg-5+deb10u3 | fixed | |
| bullseye (security), bullseye | 2:4.13.13+dfsg-1~deb11u3 | fixed | |
| bookworm, sid | 2:4.16.1+dfsg-4 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|---|---|---|---|---|---|
| samba | source | stretch | (not affected) | |||
| samba | source | buster | (not affected) | |||
| samba | source | bullseye | 2:4.13.13+dfsg-1~deb11u2 | DSA-5003-1 | ||
| samba | source | (unstable) | 2:4.13.14+dfsg-1 |
[buster] - samba <not-affected> (Vulnerable code introduced later)
[stretch] - samba <not-affected> (Vulnerable code introduced later)
https://bugzilla.samba.org/show_bug.cgi?id=14875
https://www.samba.org/samba/security/CVE-2021-23192.html