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

Severity
7
CVSS
(AV:N/AC:M/Au:N/C:N/I:C/A:N)
Published
07/20/2023
Created
08/09/2023
Added
08/08/2023
Modified
01/30/2025

Description

A vulnerability was found in Samba's SMB2 packet signing mechanism. The SMB2 packet signing is not enforced if an admin configured "server signing = required" or for SMB2 connections to Domain Controllers where SMB2 packet signing is mandatory. This flaw allows an attacker to perform attacks, such as a man-in-the-middle attack, by intercepting the network traffic and modifying the SMB2 messages between client and server, affecting the integrity of the data.

Solution(s)

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

References

  • https://attackerkb.com/topics/cve-2023-3347
  • CVE - 2023-3347
  • http://www.samba.org/samba/security/CVE-2023-3347.html
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