Loop with Unreachable Exit Condition ('Infinite Loop') Affecting samba package, versions *


Severity

Recommended
0.0
high
0
10

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Threat Intelligence

EPSS
12.9% (96th percentile)

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  • Snyk IDSNYK-DEBIAN10-SAMBA-5788351
  • published20 Jul 2023
  • disclosed20 Jul 2023

Introduced: 20 Jul 2023

CVE-2023-34966  (opens in a new tab)
CWE-835  (opens in a new tab)

How to fix?

There is no fixed version for Debian:10 samba.

NVD Description

Note: Versions mentioned in the description apply only to the upstream samba package and not the samba package as distributed by Debian. See How to fix? for Debian:10 relevant fixed versions and status.

An infinite loop vulnerability was found in Samba's mdssvc RPC service for Spotlight. When parsing Spotlight mdssvc RPC packets sent by the client, the core unmarshalling function sl_unpack_loop() did not validate a field in the network packet that contains the count of elements in an array-like structure. By passing 0 as the count value, the attacked function will run in an endless loop consuming 100% CPU. This flaw allows an attacker to issue a malformed RPC request, triggering an infinite loop, resulting in a denial of service condition.

CVSS Scores

version 3.1