P11-kit: null dereference via c_derivekey with specific null parameters
13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 5.3epss 1.2%
exploitation probability
1.2%top 35% of all CVEs
observed exploitation
nono source reports it
A flaw was found in p11-kit. A remote attacker could exploit this vulnerability by calling the C_DeriveKey function on a remote token with specific IBM kyber or IBM btc derive mechanism parameters set to NULL. This could lead to the RPC-client attempting to return an uninitialized value, potentially resulting in a NULL dereference or undefined behavior. This issue may cause an application level denial of service or other unpredictable system states.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Affected products
p11-glue · p11-kitRed Hat · Cost Management 4Red Hat · Red Hat Enterprise Linux 10Red Hat · Red Hat Enterprise Linux 6Red Hat · Red Hat Enterprise Linux 7Red Hat · Red Hat Enterprise Linux 8Red Hat · Red Hat Enterprise Linux 9Red Hat · Red Hat Hardened ImagesRed Hat · Red Hat Insights proxy 1.5Red Hat · Red Hat OpenShift Container Platform 4Red Hat · Red Hat Update Infrastructure 5References
https://access.redhat.com/errata/RHSA-2026:18143https://access.redhat.com/errata/RHSA-2026:18599https://access.redhat.com/errata/RHSA-2026:21275https://access.redhat.com/errata/RHSA-2026:22634https://access.redhat.com/errata/RHSA-2026:27998https://access.redhat.com/errata/RHSA-2026:58981https://access.redhat.com/errata/RHSA-2026:7065https://access.redhat.com/security/cve/CVE-2026-2100https://bugzilla.redhat.com/show_bug.cgi?id=2437308https://github.com/p11-glue/p11-kit/pull/740https://github.com/p11-glue/p11-kit/releases/tag/0.26.2