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Moderate Samba Crash Risk in Ubuntu 16.04 ESM USN-5260-3 Alert

ubuntu
Calendar Grey February 3, 2022
Dist Ubuntu Esm H88
The Ubuntu Security Notice USN-5260-3 highlights a vulnerability in Samba that can cause system crashes due to memory handling issues found in the 14.04 and 16.04 ESM versions.
Samba could be made to crash when handled certain memory operations.

Summary

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

Software Description:

- 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)

Topics%20covered

Topics Covered

security advisory denial of service Ubuntu Samba crash

Update Instructions

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

Ubuntu 16.04 ESM:
  samba                           2:4.3.11+dfsg-0ubuntu0.16.04.34+esm1

Ubuntu 14.04 ESM:
  samba                           2:4.3.11+dfsg-0ubuntu0.14.04.20+esm12

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

References

https://ubuntu.com/security/notices/USN-5260-3

https://ubuntu.com/security/notices/USN-5260-1

CVE-2021-44142

February 03, 2022

Topics%20covered

Topics Covered

security advisory denial of service Ubuntu Samba crash

Package Information

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