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Samba CVE-2023-34966: CVE-2022-2127, CVE-2023-3347, CVE-2023-34966, CVE-2023-34967 and CVE-2023-34968. Please see announcements for details.

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Samba CVE-2023-34966: CVE-2022-2127, CVE-2023-3347, CVE-2023-34966, CVE-2023-34967 and CVE-2023-34968. Please see announcements for details.

Severity
4
CVSS
(AV:L/AC:M/Au:N/C:P/I:P/A:P)
Published
07/20/2023
Created
07/31/2023
Added
07/31/2023
Modified
08/02/2023

Description

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.

Solution(s)

  • samba-upgrade-4_16_11
  • samba-upgrade-4_17_10
  • samba-upgrade-4_18_5

References

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