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Ubuntu 26.04 Netatalk Critical Denial of Service Path Traversal 8455-1

ubuntu
Calendar Grey June 22, 2026
Dist Ubuntu Esm H88
Several security issues in Netatalk offer attackers a chance to execute denial of service and path traversal attacks. Stay updated!
Several security issues were fixed in Netatalk.

Summary

Several security issues were fixed in Netatalk.

Software Description:

- netatalk: Apple Filing Protocol service

Details:

Arjun Basnet discovered that Netatalk improperly validated inputs when

unmarshalling Spotlight Remote Procedure Call. A remote authenticated

attacker could possibly use this issue to cause a denial of service or

obtain sensitive information. (CVE-2026-44066)

Arjun Basnet discovered that Netatalk improperly sanitized extended

attribute path components. A remote authenticated attacker could possibly

use this issue to perform path traversal attacks and write to arbitrary

files outside the intended metadata directory. (CVE-2026-44068)

Topics%20covered

Topics Covered

security advisory denial of service critical Ubuntu path traversal

Update Instructions

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

Ubuntu 26.04 LTS
  netatalk                        4.2.3~ds-2.1ubuntu0.2

Ubuntu 24.04 LTS
  netatalk                        3.1.18~ds-1ubuntu0.1~esm3
                                  Available with Ubuntu Pro

Ubuntu 22.04 LTS
  netatalk                        3.1.12~ds-9ubuntu0.22.04.4+esm2
                                  Available with Ubuntu Pro

Ubuntu 20.04 LTS
  netatalk                        3.1.12~ds-4ubuntu0.20.04.4+esm2
                                  Available with Ubuntu Pro

Ubuntu 18.04 LTS
  netatalk                        2.2.6-1ubuntu0.18.04.2+esm4
                                  Available with Ubuntu Pro

Ubuntu 16.04 LTS
  netatalk                        2.2.5-1ubuntu0.2+esm4
                                  Available with Ubuntu Pro

Ubuntu 14.04 LTS
  netatalk                        2.2.2-1ubuntu2.2+esm4
                                  Available with Ubuntu Pro

In general, a standard system update will make all the necessary changes.

References

https://ubuntu.com/security/notices/USN-8455-1

CVE-2026-44066, CVE-2026-44068

Severity
critical
Lowest
Low
Medium
High
Critical

Ubuntu Security Notice USN-8455-1

Topics%20covered

Topics Covered

security advisory denial of service critical Ubuntu path traversal

Package Information

https://launchpad.net/ubuntu/+source/netatalk/4.2.3~ds-2.1ubuntu0.2

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