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P11-kit: null dereference via c_derivekey with specific null parameters

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.

p11-kitRed Hat Enterprise Linux 10Red Hat Enterprise Linux 9Red Hat Enterprise Linux 9Cert Manager support for Red Hat OpenShift release 1.17Cert Manager support for Red Hat OpenShift release 1.17Cert Manager support for Red Hat OpenShift release 1.17Cert Manager support for Red Hat OpenShift release 1.17Cert Manager support for Red Hat OpenShift release 1.18Cert Manager support for Red Hat OpenShift release 1.18Cert Manager support for Red Hat OpenShift release 1.18Cert Manager support for Red Hat OpenShift release 1.18Cert Manager support for Red Hat OpenShift release 1.18Cert Manager support for Red Hat OpenShift release 1.20Cost Management 4Red Hat Hardened ImagesRed Hat Insights proxy 1.5Red Hat Update Infrastructure 5Red Hat Update Infrastructure 5Red Hat Update Infrastructure 5Red Hat Update Infrastructure 5Red Hat Update Infrastructure 5Red Hat Update Infrastructure 5Red Hat Update Infrastructure 5Red Hat Enterprise Linux 6Red Hat Enterprise Linux 7Red Hat Enterprise Linux 8Red Hat OpenShift Container Platform 4Red Hat OpenShift Container Platform 4Red Hat OpenShift Container Platform 4CVE-2026-2100
Structured advisory · Revision 1Original source
Evidence and details

Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.

Security context

Source reference: cve:CVE-2026-2100

p11-kit

Source reference: /containers/cna/affected/0/product

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Red Hat Enterprise Linux 10

Source reference: /containers/cna/affected/1/product

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Red Hat Enterprise Linux 9

Source reference: /containers/cna/affected/2/product

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Red Hat Enterprise Linux 9

Source reference: /containers/cna/affected/3/product

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Cert Manager support for Red Hat OpenShift release 1.17

Source reference: /containers/cna/affected/4/product

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Cert Manager support for Red Hat OpenShift release 1.17

Source reference: /containers/cna/affected/5/product

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Cert Manager support for Red Hat OpenShift release 1.17

Source reference: /containers/cna/affected/6/product

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Cert Manager support for Red Hat OpenShift release 1.17

Source reference: /containers/cna/affected/7/product

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Cert Manager support for Red Hat OpenShift release 1.18

Source reference: /containers/cna/affected/8/product

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Cert Manager support for Red Hat OpenShift release 1.18

Source reference: /containers/cna/affected/9/product

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Cert Manager support for Red Hat OpenShift release 1.18

Source reference: /containers/cna/affected/10/product

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Cert Manager support for Red Hat OpenShift release 1.18

Source reference: /containers/cna/affected/11/product

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Cert Manager support for Red Hat OpenShift release 1.18

Source reference: /containers/cna/affected/12/product

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Cert Manager support for Red Hat OpenShift release 1.20

Source reference: /containers/cna/affected/13/product

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Cost Management 4

Source reference: /containers/cna/affected/14/product

Affected versions
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Prerequisites
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Red Hat Hardened Images

Source reference: /containers/cna/affected/15/product

Affected versions
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Prerequisites
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Red Hat Insights proxy 1.5

Source reference: /containers/cna/affected/16/product

Affected versions
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Not stated in this record
Prerequisites
Not stated in this record

Red Hat Update Infrastructure 5

Source reference: /containers/cna/affected/17/product

Affected versions
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Red Hat Update Infrastructure 5

Source reference: /containers/cna/affected/18/product

Affected versions
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Red Hat Update Infrastructure 5

Source reference: /containers/cna/affected/19/product

Affected versions
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Red Hat Update Infrastructure 5

Source reference: /containers/cna/affected/20/product

Affected versions
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Red Hat Update Infrastructure 5

Source reference: /containers/cna/affected/21/product

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Red Hat Update Infrastructure 5

Source reference: /containers/cna/affected/22/product

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Red Hat Update Infrastructure 5

Source reference: /containers/cna/affected/23/product

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Red Hat Enterprise Linux 6

Source reference: /containers/cna/affected/24/product

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Red Hat Enterprise Linux 7

Source reference: /containers/cna/affected/25/product

Affected versions
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Red Hat Enterprise Linux 8

Source reference: /containers/cna/affected/26/product

Affected versions
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Prerequisites
Not stated in this record

Red Hat OpenShift Container Platform 4

Source reference: /containers/cna/affected/27/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Red Hat OpenShift Container Platform 4

Source reference: /containers/cna/affected/28/product

Affected versions
Not stated in this record
Fixed versions
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Prerequisites
Not stated in this record

Red Hat OpenShift Container Platform 4

Source reference: /containers/cna/affected/29/product

Affected versions
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Fixed versions
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Prerequisites
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Related CVEs
CVE-2026-2100

Source reference: /cveMetadata/cveId

Publisher severity

medium

Source reference: /containers/cna/metrics

Event
#23071 · Revision 1
Added to Heist Feed
Publisher date
Read the original announcement