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5.3 Medium

CVE-2026-2100 P11-kit: null dereference via c_derivekey with specific null parameters

Description

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 detail

Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Exploitable remotely over the network, without an account and without any user action; the impact on data or service is limited.

Attack vector
Network
Attack complexity
Low
Privileges required
None
Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
Low

Affected products and versions

Product Affected versions Fixed in
Red Hat Enterprise Linux 10 Versions not published
Red Hat Enterprise Linux 6 Versions not published
Red Hat Enterprise Linux 7 Versions not published
Red Hat Enterprise Linux 8 Versions not published
Red Hat Enterprise Linux 9 Versions not published
Red Hat OpenShift Container Platform 4 Versions not published
Red Hat Hardened Images 0.26 earliest → < 0.26.2-1.1.hum1 0.26.2-1.1.hum1
Red Hat Update Infrastructure 5 1787241260 earliest → < 1787241260 1787241260
Red Hat Insights proxy 1.5 1780420428 earliest → < 1780420428 1780420428
Show the 6 other branches
Product Affected versions Fixed in
Cost Management 4 1780946239 earliest → < 1780946239 1780946239
p11-kit 0.26 earliest → < 0.26.2 0.26.2
Cost Management Metrics Operator 4 1780946239 earliest → < 1780946239 1780946239
Cert Manager support for Red Hat OpenShift release 1.20 1790598593 earliest → < 1790598593 1790598593
Cert Manager support for Red Hat OpenShift release 1.17 1791970484 earliest → < 1791970484 1791970484
Cert Manager support for Red Hat OpenShift release 1.18 1791966259 earliest → < 1791966259 1791966259

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