CVE catalog
CVE-2020-29363
p11-kit: CVE-2020-29363
- Severity
- High · CVSS 7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Published
- Source
- [NVD] · [CVE record]
- EPSS
- 3.53% · Oct 25, 2026
An issue was discovered in p11-kit 0.23.6 through 0.23.21. A heap-based buffer overflow has been discovered in the RPC protocol used by p11-kit server/remote commands and the client library. When the remote entity supplies a serialized byte array in a CK_ATTRIBUTE, the receiving entity may not allocate sufficient length for the buffer to store the deserialized value.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Debian | p11-kit | sid | 0.26.5-1 | fixed |
| Debian | p11-kit | forky | 0.26.5-1 | fixed |
| Debian | p11-kit | trixie | 0.25.5-3 | fixed |
| Debian | p11-kit | bookworm | 0.24.1-2 | fixed |
| Cpe | p11-kit | Not reported | 0.23.22 | fixed |
| Cpe | debian_linux | Not reported | Not reported | unknown |
| Cpe | communications_cloud_native_core_policy | Not reported | Not reported | unknown |
| Alpine | p11-kit | 3.10 | 0.23.16.1-r1 | fixed |
| Alpine | p11-kit | 3.11 | 0.23.18.1-r1 | fixed |
| Alpine | p11-kit | 3.12 | 0.23.22-r0 | fixed |
| Alpine | p11-kit | 3.13 | 0.23.22-r0 | fixed |
| Alpine | p11-kit | 3.14 | 0.23.22-r0 | fixed |
| Alpine | p11-kit | 3.15 | 0.23.22-r0 | fixed |
| Alpine | p11-kit | 3.16 | 0.23.22-r0 | fixed |
| Alpine | p11-kit | 3.17 | 0.23.22-r0 | fixed |
| Alpine | p11-kit | 3.18 | 0.23.22-r0 | fixed |
| Alpine | p11-kit | 3.19 | 0.23.22-r0 | fixed |
| Alpine | p11-kit | 3.20 | 0.23.22-r0 | fixed |
| Alpine | p11-kit | 3.21 | 0.23.22-r0 | fixed |
| Alpine | p11-kit | 3.22 | 0.23.22-r0 | fixed |
| Alpine | p11-kit | 3.23 | 0.23.22-r0 | fixed |
| Alpine | p11-kit | 3.24 | 0.23.22-r0 | fixed |
| Ubuntu | p11-kit | 18.04 | 0.23.7-3 | vulnerable |
| Ubuntu | p11-kit | 18.04 | 0.23.9-2 | vulnerable |
| Ubuntu | p11-kit | 18.04 | 0.23.9-2ubuntu0.1 | fixed |
| Ubuntu | p11-kit | 20.04 | 0.23.17-2 | vulnerable |
| Ubuntu | p11-kit | 20.04 | 0.23.18.1-2 | vulnerable |
| Ubuntu | p11-kit | 20.04 | 0.23.19-2 | vulnerable |
| Ubuntu | p11-kit | 20.04 | 0.23.20-1 | vulnerable |
| Ubuntu | p11-kit | 20.04 | 0.23.20-1build1 | vulnerable |
| Ubuntu | p11-kit | 20.04 | 0.23.20-1ubuntu0.1 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | p11-kit | source | sid | 0.23.22-1 | not yet assigned | Not reported | Not reported |
| Debian | p11-kit | source | forky | 0.23.22-1 | not yet assigned | Not reported | Not reported |
| Debian | p11-kit | source | trixie | 0.23.22-1 | not yet assigned | Not reported | Not reported |
| Debian | p11-kit | source | bookworm | 0.23.22-1 | not yet assigned | Not reported | Not reported |
| Cpe | p11-kit | cpe | Not reported | 0.23.22 | Not reported | NVD-CVE-2020-29363 | Not reported |
| Alpine | p11-kit | apk | 3.10 | 0.23.16.1-r1 | Not reported | ALPINE-CVE-2020-29363 | Not reported |
| Alpine | p11-kit | apk | 3.11 | 0.23.18.1-r1 | Not reported | ALPINE-CVE-2020-29363 | Not reported |
| Alpine | p11-kit | apk | 3.12 | 0.23.22-r0 | Not reported | ALPINE-CVE-2020-29363 | Not reported |
| Alpine | p11-kit | apk | 3.13 | 0.23.22-r0 | Not reported | ALPINE-CVE-2020-29363 | Not reported |
| Alpine | p11-kit | apk | 3.14 | 0.23.22-r0 | Not reported | ALPINE-CVE-2020-29363 | Not reported |
| Alpine | p11-kit | apk | 3.15 | 0.23.22-r0 | Not reported | ALPINE-CVE-2020-29363 | Not reported |
| Alpine | p11-kit | apk | 3.16 | 0.23.22-r0 | Not reported | ALPINE-CVE-2020-29363 | Not reported |
| Alpine | p11-kit | apk | 3.17 | 0.23.22-r0 | Not reported | ALPINE-CVE-2020-29363 | Not reported |
| Alpine | p11-kit | apk | 3.18 | 0.23.22-r0 | Not reported | ALPINE-CVE-2020-29363 | Not reported |
| Alpine | p11-kit | apk | 3.19 | 0.23.22-r0 | Not reported | ALPINE-CVE-2020-29363 | Not reported |
| Alpine | p11-kit | apk | 3.20 | 0.23.22-r0 | Not reported | ALPINE-CVE-2020-29363 | Not reported |
| Alpine | p11-kit | apk | 3.21 | 0.23.22-r0 | Not reported | ALPINE-CVE-2020-29363 | Not reported |
| Alpine | p11-kit | apk | 3.22 | 0.23.22-r0 | Not reported | ALPINE-CVE-2020-29363 | Not reported |
| Alpine | p11-kit | apk | 3.23 | 0.23.22-r0 | Not reported | ALPINE-CVE-2020-29363 | Not reported |
| Alpine | p11-kit | apk | 3.24 | 0.23.22-r0 | Not reported | ALPINE-CVE-2020-29363 | Not reported |
| Ubuntu | p11-kit | deb | 18.04 | 0.23.9-2ubuntu0.1 | Not reported | UBUNTU-CVE-2020-29363 | Not reported |
| Ubuntu | p11-kit | deb | 20.04 | 0.23.20-1ubuntu0.1 | Not reported | UBUNTU-CVE-2020-29363 | Not reported |
OpenFactory catalog packages
Matching against OpenFactory catalog package versions is in progress.
[Debian 12 (Bookworm)]
- [libp11-kit0]Unknown
Source package: [p11-kit]
Details (2)
0.24.1-2· amd64 · bookwormFixed · Fixed:
0.23.22-1dsa · p11-kit · debian · bookworm
0.24.1-2· arm64 · bookwormFixed · Fixed:
0.23.22-1dsa · p11-kit · debian · bookworm
- [libp11-kit-dev]Unknown
Source package: [p11-kit]
Details (2)
0.24.1-2· amd64 · bookwormFixed · Fixed:
0.23.22-1dsa · p11-kit · debian · bookworm
0.24.1-2· arm64 · bookwormFixed · Fixed:
0.23.22-1dsa · p11-kit · debian · bookworm
- [p11-kit]Unknown
Details (2)
0.24.1-2· amd64 · bookwormFixed · Fixed:
0.23.22-1dsa · p11-kit · debian · bookworm
0.24.1-2· arm64 · bookwormFixed · Fixed:
0.23.22-1dsa · p11-kit · debian · bookworm
- [p11-kit-doc]Unknown
Source package: [p11-kit]
Details (2)
0.24.1-2· all · bookwormFixed · Fixed:
0.23.22-1dsa · p11-kit · debian · bookworm
0.24.1-2· all · bookwormFixed · Fixed:
0.23.22-1dsa · p11-kit · debian · bookworm
- [p11-kit-modules]Unknown
Source package: [p11-kit]
Details (2)
0.24.1-2· amd64 · bookwormFixed · Fixed:
0.23.22-1dsa · p11-kit · debian · bookworm
0.24.1-2· arm64 · bookwormFixed · Fixed:
0.23.22-1dsa · p11-kit · debian · bookworm
Observed:
References
- [https://cert-portal.siemens.com/productcert/csaf/ssa-398330.json]
- [https://ftp.suse.com/pub/projects/security/csaf/rhsa-2021_1609.json]
- [https://nvd.nist.gov/vuln/detail/CVE-2020-29363]
- [https://osv.dev/vulnerability/ALPINE-CVE-2020-29363]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2020-29363]
- [https://osv.dev/vulnerability/UBUNTU-CVE-2020-29363]
- [https://security-tracker.debian.org/tracker/CVE-2020-29363]
- [https://security.access.redhat.com/data/csaf/v2/vex/2020/cve-2020-29363.json]
- [https://wid.cert-bund.de/.well-known/csaf/white/2021/wid-sec-w-2025-0227.json]
[CERT-Bund public advisories] · [CISA cybersecurity advisories] · [Debian Security Tracker] · [FIRST EPSS] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX]