Description
An issue was discovered in p11-kit 0.21.1 through 0.23.21. Multiple integer overflows have been discovered in the array allocations in the p11-kit library and the p11-kit list command, where overflow checks are missing before calling realloc or calloc.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | p11-kit | 0.23.22-1 | — |
| Debian 13 | p11-kit | 0.23.22-1 | — |
| Debian 12 | p11-kit | 0.23.22-1 | — |
| Debian 10 | p11-kit | 0.23.15-2+deb10u1 | DSA-4822-1 |
| Debian 9 | p11-kit | 0.23.3-2+deb9u1 | DLA-2513-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 20.04 LTS | p11-kit | 0.23.20-1ubuntu0.1 | USN-4677-1 |
| Ubuntu 18.04 LTS | p11-kit | 0.23.9-2ubuntu0.1 | USN-4677-1 |
| Ubuntu 16.04 LTS | p11-kit | 0.23.2-5~ubuntu16.04.2 | USN-4677-1 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 14.04 LTS | p11-kit | 0.20.2-2ubuntu2+esm1 | USN-4677-2 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 8 | p11-kit +3 | 0.23.22-1.el8 | RHSA-2021:1609 |
AlmaLinux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux 8 | p11-kit +3 | 0.23.22-1.el8 | ALSA-2021:1609 |
Rocky Linux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Rocky Linux 8 | p11-kit | 0.23.22-1.el8 | RLSA-2021:1609 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP3 | p11-kit | 0.23.2-4.13.1 | SUSE-SU-2021:4154-1 |
| SLES 15 SP2 | p11-kit | 0.23.2-4.13.1 | SUSE-SU-2021:4154-1 |
| SLES 15 SP1 | p11-kit | 0.23.2-4.13.1 | SUSE-SU-2021:4154-1 |
| SLES 15 | p11-kit | 0.23.2-4.13.1 | SUSE-SU-2021:4154-1 |
| SLES 12 SP5 | apparmor | 2.8.2-56.6.3 | SUSE-SU-2022:0323-1 |
| SLES 12 SP5 | ca-certificates | 1_201403302107-15.3.3 | SUSE-SU-2022:0323-1 |
| SLES 12 SP5 | gnutls | 3.4.17-8.4.1 | SUSE-SU-2022:0323-1 |
| SLES 12 SP5 | libnettle | 3.1-21.3.2 | SUSE-SU-2022:0323-1 |
| SLES 12 SP5 | p11-kit | 0.23.2-8.3.2 | SUSE-SU-2022:0323-1 |
| SLES 12 SP5 | samba | 4.15.4+git.324.8332acf1a63-3.54.1 | SUSE-SU-2022:0323-1 |
| SLES 12 SP5 | sssd | 1.16.1-7.28.9 | SUSE-SU-2022:0323-1 |
| SLES 12 SP5 | yast2-samba-client | 3.1.23-3.3.1 | SUSE-SU-2022:0323-1 |
Show 14 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 15 SP2 | p11-kit | 0.23.2-4.13.1 | SUSE-SU-2021:4154-1 |
| SLES for SAP 15 SP1 | p11-kit | 0.23.2-4.13.1 | SUSE-SU-2021:4154-1 |
| SLES for SAP 15 | p11-kit | 0.23.2-4.13.1 | SUSE-SU-2021:4154-1 |
| SLES for SAP 12 SP5 | apparmor | 2.8.2-56.6.3 | SUSE-SU-2022:0323-1 |
| SLES for SAP 12 SP5 | ca-certificates | 1_201403302107-15.3.3 | SUSE-SU-2022:0323-1 |
| SLES for SAP 12 SP5 | gnutls | 3.4.17-8.4.1 | SUSE-SU-2022:0323-1 |
| SLES for SAP 12 SP5 | libnettle | 3.1-21.3.2 | SUSE-SU-2022:0323-1 |
| SLES for SAP 12 SP5 | p11-kit | 0.23.2-8.3.2 | SUSE-SU-2022:0323-1 |
| SLES for SAP 12 SP5 | samba | 4.15.4+git.324.8332acf1a63-3.54.1 | SUSE-SU-2022:0323-1 |
| SLES for SAP 12 SP5 | sssd | 1.16.1-7.28.9 | SUSE-SU-2022:0323-1 |
| SLES for SAP 12 SP5 | yast2-samba-client | 3.1.23-3.3.1 | SUSE-SU-2022:0323-1 |
| SLE Micro 5.1 | p11-kit | 0.23.2-4.13.1 | SUSE-SU-2021:4154-1 |
| SLE Micro 5.0 | p11-kit | 0.23.2-4.13.1 | SUSE-SU-2021:4154-1 |
| SLE HPC 15 SP2 | p11-kit | 0.23.2-4.13.1 | SUSE-SU-2021:4154-1 |
| SLE HPC 15 SP1 | p11-kit | 0.23.2-4.13.1 | SUSE-SU-2021:4154-1 |
| SLE HPC 15 | p11-kit | 0.23.2-4.13.1 | SUSE-SU-2021:4154-1 |
| SUSE Manager Server 4.1 | p11-kit | 0.23.2-4.13.1 | SUSE-SU-2021:4154-1 |
| SUSE Manager Retail Branch Server 4.1 | p11-kit | 0.23.2-4.13.1 | SUSE-SU-2021:4154-1 |
| SUSE Manager Proxy 4.1 | p11-kit | 0.23.2-4.13.1 | SUSE-SU-2021:4154-1 |
| SUSE Enterprise Storage 7 | p11-kit | 0.23.2-4.13.1 | SUSE-SU-2021:4154-1 |
| SUSE Enterprise Storage 6 | p11-kit | 0.23.2-4.13.1 | SUSE-SU-2021:4154-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Leap 15.3 | p11-kit | 0.23.2-4.13.1 | openSUSE-SU-2021:4154-1 |
| openSUSE Leap 15.2 | p11-kit | 0.23.2-lp152.7.3.1 | openSUSE-SU-2021:1611-1 |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.24 | p11-kit | 0.23.22-r0 | — |
| Alpine v3.23 | p11-kit | 0.23.22-r0 | — |
| Alpine v3.22 | p11-kit | 0.23.22-r0 | — |
| Alpine v3.21 | p11-kit | 0.23.22-r0 | — |
| Alpine v3.20 | p11-kit | 0.23.22-r0 | — |
Show 10 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.19 | p11-kit | 0.23.22-r0 | — |
| Alpine v3.18 | p11-kit | 0.23.22-r0 | — |
| Alpine v3.17 | p11-kit | 0.23.22-r0 | — |
| Alpine v3.16 | p11-kit | 0.23.22-r0 | — |
| Alpine v3.15 | p11-kit | 0.23.22-r0 | — |
| Alpine v3.14 | p11-kit | 0.23.22-r0 | — |
| Alpine v3.13 | p11-kit | 0.23.22-r0 | — |
| Alpine v3.12 | p11-kit | 0.23.22-r0 | — |
| Alpine v3.11 | p11-kit | 0.23.18.1-r1 | — |
| Alpine v3.10 | p11-kit | 0.23.16.1-r1 | — |
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Amazon Linux 2 | p11-kit +3 | 0.23.22-1.amzn2.0.1 | ALAS2-2021-1601 |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 8 | p11-kit +3 | 0.23.22-1.el8 | ELSA-2021-1609 |
Advisories 16
- ALSA-2021:1609 Moderate: p11-kit security, bug fix, and enhancement update AlmaLinux Security Advisories · Oct 29, 2026
- RHSA-2021:1609 Red Hat Security Advisory: p11-kit security, bug fix, and enhancement update Red Hat Security Advisories (RHSA) · Oct 15, 2026
- SSA-398330 SSA-398330: Vulnerabilities in the additional GNU/Linux subsystem of the SIMATIC S7-1500 CPU 1518(F)-4 PN/DP MFP >= V3.1.0 and < V3.1.5 Siemens ProductCERT · Oct 13, 2026
- WID-SEC-2025-0227 IBM QRadar SIEM: Mehrere Schwachstellen BSI CERT-Bund (WID) · Aug 11, 2026
- USN-4677-2 p11-kit vulnerability Ubuntu Security Notices (USN) · Apr 22, 2026
- USN-4677-1 p11-kit vulnerabilities Ubuntu Security Notices (USN) · Apr 22, 2026
- DSA-4822-1 p11-kit - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DLA-2513-1 p11-kit - security update Debian Security (DSA / DLA) · Mar 9, 2026
- RLSA-2021:1609 Moderate: p11-kit security, bug fix, and enhancement update Rocky Linux Security Advisories · Feb 4, 2026
- openSUSE-SU-2021:1611-1 Security update for p11-kit SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2022:0323-1 Security update for samba SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2021:4154-1 Security update for p11-kit SUSE / openSUSE Security Updates · Feb 4, 2026
- ICSA-23-348-10 Siemens SIMATIC S7-1500 CISA ICS & IT advisories · Aug 12, 2025
- openSUSE-SU-2021:4154-1 Security update for p11-kit SUSE / openSUSE Security Updates · May 7, 2025
- ELSA-2021-1609 Moderate: p11-kit security, bug fix, and enhancement update (Oracle Linux 8) Oracle Linux Security Advisories (ELSA) · May 25, 2021
- ALAS2-2021-1601 Moderate: p11-kit security update (Amazon Linux 2) Amazon Linux Security Center (ALAS) · Feb 19, 2021
References
- https://github.com/p11-glue/p11-kit/releases
- https://github.com/p11-glue/p11-kit/security/advisories/GHSA-q4r3-hm6m-mvc2
- DSA-4822 vendor-advisory
- [debian-lts-announce] 20210104 [SECURITY] [DLA 2513-1] p11-kit security update mailing-list
- [bookkeeper-issues] 20210628 [GitHub] [bookkeeper] padma81 opened a new issue #2746: Security Vulnerabilities in CentOS 7 image, Upgrade image to CentOS 8 mailing-list
- [bookkeeper-issues] 20210629 [GitHub] [bookkeeper] padma81 opened a new issue #2746: Security Vulnerabilities in CentOS 7 image, Upgrade image to CentOS 8 mailing-list