ELA-1702-1 policykit-1 security update

denial of service

2026-04-30
Packagepolicykit-1
Version0.105-18+deb9u3 (stretch)
Related CVEs CVE-2026-4897


Pavel Kohout, Aisle Research found that a local user provide a specially crafted, excessively long input to the polkit-agent-helper-1 setuid binary via standard input (stdin). This unbounded input can lead to an out-of-memory (OOM) condition, resulting in a Denial of Service (DoS) for the system.



For Debian 10 buster, these problems have been fixed in version 0.105-25+deb10u2.

We recommend that you upgrade your policykit-1 packages.

Further information about Extended LTS security advisories can be found in the dedicated section of our website.