1. Ubuntu Security Notices
  2. USN-5260-3

USN-5260-3: Samba vulnerability

Publication date

3 February 2022

Overview

Samba could be made to crash when handled certain memory operations.

Releases

Packages

  • samba - SMB/CIFS file, print, and login server for Unix

Details

USN-5260-1 fixed a vulnerability in Samba. This update provides
the corresponding update for Ubuntu 14.04 ESM and Ubuntu 16.04 ESM.

Original advisory details:

Orange Tsai discovered that the Samba vfs_fruit module incorrectly handled
certain memory operations. A remote attacker could use this issue to cause
Samba to crash, resulting in a denial of service, or possibly execute
arbitrary code as root. (CVE-2021-44142)

USN-5260-1 fixed a vulnerability in Samba. This update provides
the corresponding update for Ubuntu 14.04 ESM and Ubuntu 16.04 ESM.

Original advisory details:

Orange Tsai discovered that the Samba vfs_fruit module incorrectly handled
certain memory operations. A remote attacker could use this issue to cause
Samba to crash, resulting in a denial of service, or possibly execute
arbitrary code as root. (CVE-2021-44142)

Update instructions

This update uses a new upstream release, which includes additional bug fixes. In general, a standard system update will make all the necessary changes.

Learn more about how to get the fixes.

The problem can be corrected by updating your system to the following package versions:

Ubuntu Release Package Version
16.04 xenial samba –  2:4.3.11+dfsg-0ubuntu0.16.04.34+esm1  
14.04 trusty samba –  2:4.3.11+dfsg-0ubuntu0.14.04.20+esm12  

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References

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