CVE-2023-34967mediumCWE-843

CVE-2023-34967: medium-severity vulnerability in Red Hat Enterprise Linux 6

Samba: type confusion in mdssvc rpc service for spotlight

Published · Updated

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25Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackcvss 5.3epss 61%
What the vendors declare (VEX)

Official vendor statements in CSAF/VEX format: whether their product is affected, already fixed, or ruled out — and why. These are the vendor's assertions, not Vexday's judgment.

Red HatVEX document ↗
Affected
3 products (94 components)
Red Hat Storage 3 · Red Hat Enterprise Linux 7 · Red Hat Enterprise Linux 6
workaround: As a possible workaround, disable Spotlight by removing all configuration stanzas ("spotlight=yes|true") that enable Spotlight .
Fixed
14 products (3,400 components)
Red Hat CodeReady Linux Builder (v. 8) · Red Hat CodeReady Linux Builder EUS (v.8.8) · Red Hat Enterprise Linux AppStream (v. 8) · Red Hat Enterprise Linux AppStream EUS (v.8.8) · Red Hat Enterprise Linux BaseOS (v. 8) · and others 9
fix ↗
Not affected
2 products (70 components) — because the vulnerable code is not present in the product
Red Hat Enterprise Linux AppStream (v. 8) · Red Hat Enterprise Linux AppStream (v. 9)
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.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Affected products
Red Hat · Red Hat Enterprise Linux 6Red Hat · Red Hat Enterprise Linux 7Red Hat · Red Hat Enterprise Linux 8Red Hat · Red Hat Enterprise Linux 8.6 Extended Update SupportRed Hat · Red Hat Enterprise Linux 8.8 Extended Update SupportRed Hat · Red Hat Enterprise Linux 9Red Hat · Red Hat Storage 3Red Hat · Red Hat Virtualization 4 for Red Hat Enterprise Linux 8
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