This page tracks the Debian fix status. The vulnerability itself is described on the main CVE page. View CVE-2026-18938 →
Categories
DEBIAN-CVE-2026-18938

A flaw was found in p11-kit. A local attacker, or one with equivalent access to a reachable RPC channel, could exploit an integer overflow vulnerabili...

Original description

The description as published by the source.

A flaw was found in p11-kit. A local attacker, or one with equivalent access to a reachable RPC channel, could exploit an integer overflow vulnerability. By sending specially crafted messages, the attacker can cause the system to miscalculate memory allocation for nested attributes. This leads to a memory corruption issue, specifically a heap out-of-bounds write, which can crash the p11-kit RPC parsing process, resulting in a Denial of Service (DoS). This vulnerability is only exploitable on 32 bit systems.

Source: OSV.dev (Open Source Vulnerabilities) OSV

Affected packages

Debian:12 p11-kit
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Debian:13 p11-kit
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Debian:14 p11-kit
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.26.5-1"}]}]

References

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