| Name | CVE-2023-34967 |
| Description | A Type Confusion vulnerability was found in Samba's mdssvc RPC service for Spotlight. When parsing Spotlight mdssvc RPC packets, one encoded data structure is a key-value style dictionary where the keys are character strings, and the values can be any of the supported types in the mdssvc protocol. Due to a lack of type checking in callers of the dalloc_value_for_key() function, which returns the object associated with a key, a caller may trigger a crash in talloc_get_size() when talloc detects that the passed-in pointer is not a valid talloc pointer. With an RPC worker process shared among multiple client connections, a malicious client or attacker can trigger a process crash in a shared RPC mdssvc worker process, affecting all other clients this worker serves. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| References | DSA-5477-1, DSA-5647-1 |
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| samba (PTS) | buster | 2:4.9.5+dfsg-5+deb10u3 | vulnerable |
| buster (security) | 2:4.9.5+dfsg-5+deb10u5 | vulnerable | |
| bullseye | 2:4.13.13+dfsg-1~deb11u5 | vulnerable | |
| bullseye (security) | 2:4.13.13+dfsg-1~deb11u6 | fixed | |
| bookworm, bookworm (security) | 2:4.17.12+dfsg-0+deb12u1 | fixed | |
| trixie | 2:4.19.5+dfsg-1 | fixed | |
| sid | 2:4.19.6+dfsg-1 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|---|---|---|---|---|---|
| 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 |
[buster] - samba <ignored> (spotlight enabled in 4.13.13+dfsg-1 - bullseye)
https://www.samba.org/samba/security/CVE-2023-34967.html
severity:unimportant for buster backwards, but we don't have suite-specific severity annotations