CVE catalog
CVE-2025-13151
Libtasn1 vulnerabilities
- Severity
- Medium · CVSS 6.6
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:H - Published
- Source
- [NVD] · [CVE record]
- EPSS
- 1.37% · Oct 25, 2026
Stack-based buffer overflow in libtasn1 version: v4.20.0. The function fails to validate the size of input data resulting in a buffer overflow in asn1_expend_octet_string.
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 | libtasn1-6 | sid | 4.21.0-2 | fixed |
| Debian | libtasn1-6 | forky | 4.21.0-2 | fixed |
| Debian | libtasn1-6 | trixie | 4.20.0-2+deb13u1 | fixed |
| Debian | libtasn1-6 | bookworm | 4.19.0-2+deb12u1 | vulnerable |
| Debian | libtasn1-6 | bookworm-security | 4.19.0-2+deb12u1 | vulnerable |
| Ubuntu | libtasn1-6 | noble | Not reported | vulnerable |
| Ubuntu | libtasn1-6 | noble | 4.19.0-3ubuntu0.24.04.2 | fixed |
| Ubuntu | libtasn1-6-dev | noble | 4.19.0-3ubuntu0.24.04.2 | fixed |
| Ubuntu | libtasn1-bin | noble | 4.19.0-3ubuntu0.24.04.2 | fixed |
| Ubuntu | libtasn1-doc | noble | 4.19.0-3ubuntu0.24.04.2 | fixed |
| Alpine | libtasn1 | 3.20 | 4.21.0-r0 | fixed |
| Alpine | libtasn1 | 3.21 | 4.21.0-r0 | fixed |
| Alpine | libtasn1 | 3.22 | 4.21.0-r0 | fixed |
| Alpine | libtasn1 | 3.23 | 4.21.0-r0 | fixed |
| Alpine | libtasn1 | 3.24 | 4.21.0-r0 | fixed |
| Suse | libtasn1 | linux enterprise server 16.0 | 4.21.0-160000.1.1 | fixed |
| Suse | libtasn1 | linux enterprise server for sap applications 16.0 | 4.21.0-160000.1.1 | fixed |
| Ubuntu | libtasn1-6 | pro | 4.14-3 | vulnerable |
| Ubuntu | libtasn1-6 | pro | 4.15.0-2 | vulnerable |
| Ubuntu | libtasn1-6 | pro | 4.16.0-2 | vulnerable |
| Ubuntu | libtasn1-6 | pro | 4.16.0-2ubuntu0.1 | vulnerable |
| Ubuntu | libtasn1-6 | pro | 4.16.0-2ubuntu0.1+esm1 | fixed |
| Ubuntu | libtasn1-6 | 22.04 | 4.16.0-2 | vulnerable |
| Ubuntu | libtasn1-6 | 22.04 | 4.16.0-2build1 | vulnerable |
| Ubuntu | libtasn1-6 | 22.04 | 4.17.0-2 | vulnerable |
| Ubuntu | libtasn1-6 | 22.04 | 4.18.0-3 | vulnerable |
| Ubuntu | libtasn1-6 | 22.04 | 4.18.0-4 | vulnerable |
| Ubuntu | libtasn1-6 | 22.04 | 4.18.0-4build1 | vulnerable |
| Ubuntu | libtasn1-6 | 22.04 | 4.18.0-4ubuntu0.1 | vulnerable |
| Ubuntu | libtasn1-6 | 22.04 | 4.18.0-4ubuntu0.2 | fixed |
| Ubuntu | libtasn1-6 | 24.04 | 4.19.0-3 | vulnerable |
| Ubuntu | libtasn1-6 | 24.04 | 4.19.0-3build1 | vulnerable |
| Ubuntu | libtasn1-6 | 24.04 | 4.19.0-3ubuntu0.24.04.1 | vulnerable |
| Ubuntu | libtasn1-6 | 24.04 | 4.19.0-3ubuntu0.24.04.2 | fixed |
| Ubuntu | libtasn1-6 | 25.10 | 4.20.0-2 | vulnerable |
| Ubuntu | libtasn1-6 | 25.10 | 4.20.0-2build1 | vulnerable |
| Ubuntu | libtasn1-6 | 25.10 | 4.20.0-2ubuntu0.25.10.1 | fixed |
| Suse | libtasn1 | linux micro 6.2 | 4.21.0-160000.1.1 | fixed |
| Opensuse | libtasn1 | leap 16.0 | 4.21.0-160000.1.1 | fixed |
| Opensuse | libtasn1 | tumbleweed | 4.21.0-1.1 | fixed |
| Suse | libtasn1 | linux micro 6.1 | 4.19.0-slfo.1.1_3.1 | fixed |
| Suse | libtasn1 | linux micro 6.0 | 4.19.0-5.1 | fixed |
| Suse | libtasn1 | linux enterprise micro 5.3 | 4.13-150000.4.14.1 | fixed |
| Suse | libtasn1 | linux enterprise micro 5.4 | 4.13-150000.4.14.1 | fixed |
| Suse | libtasn1 | linux enterprise micro 5.5 | 4.13-150000.4.14.1 | fixed |
| Suse | libtasn1 | linux enterprise module for basesystem 15 sp7 | 4.13-150000.4.14.1 | fixed |
| Suse | libtasn1 | linux enterprise micro 5.2 | 4.13-150000.4.14.1 | fixed |
| Opensuse | libtasn1 | leap 15.6 | 4.13-150000.4.14.1 | fixed |
| Suse | libtasn1 | linux enterprise server ltss extended security 12 sp5 | 4.9-3.19.1 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | libtasn1-6 | source | sid | 4.21.0-2 | not yet assigned | Not reported | [1125063] |
| Debian | libtasn1-6 | source | forky | 4.21.0-2 | not yet assigned | Not reported | [1125063] |
| Debian | libtasn1-6 | source | trixie | 4.20.0-2+deb13u1 | not yet assigned | Not reported | [1125063] |
| Debian | libtasn1-6 | source | bookworm | (unfixed) | not yet assigned | Not reported | [1125063] |
| Ubuntu | libtasn1-6 | deb | noble | 4.19.0-3ubuntu0.24.04.2 | Not reported | Not reported | Not reported |
| Ubuntu | libtasn1-6-dev | deb | noble | 4.19.0-3ubuntu0.24.04.2 | Not reported | Not reported | Not reported |
| Ubuntu | libtasn1-bin | deb | noble | 4.19.0-3ubuntu0.24.04.2 | Not reported | Not reported | Not reported |
| Ubuntu | libtasn1-doc | deb | noble | 4.19.0-3ubuntu0.24.04.2 | Not reported | Not reported | Not reported |
| Alpine | libtasn1 | apk | 3.20 | 4.21.0-r0 | Not reported | ALPINE-CVE-2025-13151 | Not reported |
| Alpine | libtasn1 | apk | 3.21 | 4.21.0-r0 | Not reported | ALPINE-CVE-2025-13151 | Not reported |
| Alpine | libtasn1 | apk | 3.22 | 4.21.0-r0 | Not reported | ALPINE-CVE-2025-13151 | Not reported |
| Alpine | libtasn1 | apk | 3.23 | 4.21.0-r0 | Not reported | ALPINE-CVE-2025-13151 | Not reported |
| Alpine | libtasn1 | apk | 3.24 | 4.21.0-r0 | Not reported | ALPINE-CVE-2025-13151 | Not reported |
| Suse | libtasn1 | rpm | linux enterprise server 16.0 | 4.21.0-160000.1.1 | Not reported | SUSE-SU-2026:21142-1 | Not reported |
| Suse | libtasn1 | rpm | linux enterprise server for sap applications 16.0 | 4.21.0-160000.1.1 | Not reported | SUSE-SU-2026:21142-1 | Not reported |
| Ubuntu | libtasn1-6 | deb | pro | 4.16.0-2ubuntu0.1+esm1 | Not reported | UBUNTU-CVE-2025-13151 | Not reported |
| Ubuntu | libtasn1-6 | deb | 22.04 | 4.18.0-4ubuntu0.2 | Not reported | UBUNTU-CVE-2025-13151 | Not reported |
| Ubuntu | libtasn1-6 | deb | 24.04 | 4.19.0-3ubuntu0.24.04.2 | Not reported | UBUNTU-CVE-2025-13151 | Not reported |
| Ubuntu | libtasn1-6 | deb | 25.10 | 4.20.0-2ubuntu0.25.10.1 | Not reported | UBUNTU-CVE-2025-13151 | Not reported |
| Suse | libtasn1 | rpm | linux micro 6.2 | 4.21.0-160000.1.1 | Not reported | SUSE-SU-2026:21001-1 | Not reported |
| Opensuse | libtasn1 | rpm | leap 16.0 | 4.21.0-160000.1.1 | Not reported | OPENSUSE-SU-2026:20470-1 | Not reported |
| Opensuse | libtasn1 | rpm | tumbleweed | 4.21.0-1.1 | Not reported | OPENSUSE-SU-2026:10033-1 | Not reported |
| Suse | libtasn1 | rpm | linux micro 6.1 | 4.19.0-slfo.1.1_3.1 | Not reported | SUSE-SU-2026:20355-1 | Not reported |
| Suse | libtasn1 | rpm | linux micro 6.0 | 4.19.0-5.1 | Not reported | SUSE-SU-2026:20051-1 | Not reported |
| Suse | libtasn1 | rpm | linux enterprise micro 5.3 | 4.13-150000.4.14.1 | Not reported | SUSE-SU-2026:0224-1 | Not reported |
| Suse | libtasn1 | rpm | linux enterprise micro 5.4 | 4.13-150000.4.14.1 | Not reported | SUSE-SU-2026:0224-1 | Not reported |
| Suse | libtasn1 | rpm | linux enterprise micro 5.5 | 4.13-150000.4.14.1 | Not reported | SUSE-SU-2026:0224-1 | Not reported |
| Suse | libtasn1 | rpm | linux enterprise module for basesystem 15 sp7 | 4.13-150000.4.14.1 | Not reported | SUSE-SU-2026:0224-1 | Not reported |
| Suse | libtasn1 | rpm | linux enterprise micro 5.2 | 4.13-150000.4.14.1 | Not reported | SUSE-SU-2026:0224-1 | Not reported |
| Opensuse | libtasn1 | rpm | leap 15.6 | 4.13-150000.4.14.1 | Not reported | SUSE-SU-2026:0224-1 | Not reported |
| Suse | libtasn1 | rpm | linux enterprise server ltss extended security 12 sp5 | 4.9-3.19.1 | Not reported | SUSE-SU-2026:0118-1 | Not reported |
Notes
[bookworm] libtasn1-6: Minor issue
OpenFactory catalog packages
[Debian 12 (Bookworm)]
- [libtasn1-6]Affected
Details (4)
4.19.0-2+deb12u1· amd64 · bookwormAffected
usn · libtasn1-6 · debian · bookworm; usn · libtasn1-6 · debian · 12
4.19.0-2+deb12u1· arm64 · bookwormAffected
usn · libtasn1-6 · debian · bookworm; usn · libtasn1-6 · debian · 12
4.19.0-2+deb12u1· amd64 · bookworm-securityAffected
usn · libtasn1-6 · debian · bookworm; usn · libtasn1-6 · debian · 12
4.19.0-2+deb12u1· arm64 · bookworm-securityAffected
usn · libtasn1-6 · debian · bookworm; usn · libtasn1-6 · debian · 12
- [libtasn1-6-dev]Affected
Source package: [libtasn1-6]
Details (4)
4.19.0-2+deb12u1· amd64 · bookwormAffected
usn · libtasn1-6 · debian · bookworm; usn · libtasn1-6 · debian · 12
4.19.0-2+deb12u1· arm64 · bookwormAffected
usn · libtasn1-6 · debian · bookworm; usn · libtasn1-6 · debian · 12
4.19.0-2+deb12u1· amd64 · bookworm-securityAffected
usn · libtasn1-6 · debian · bookworm; usn · libtasn1-6 · debian · 12
4.19.0-2+deb12u1· arm64 · bookworm-securityAffected
usn · libtasn1-6 · debian · bookworm; usn · libtasn1-6 · debian · 12
- [libtasn1-bin]Affected
Source package: [libtasn1-6]
Details (4)
4.19.0-2+deb12u1· amd64 · bookwormAffected
usn · libtasn1-6 · debian · bookworm; usn · libtasn1-6 · debian · 12
4.19.0-2+deb12u1· arm64 · bookwormAffected
usn · libtasn1-6 · debian · bookworm; usn · libtasn1-6 · debian · 12
4.19.0-2+deb12u1· amd64 · bookworm-securityAffected
usn · libtasn1-6 · debian · bookworm; usn · libtasn1-6 · debian · 12
4.19.0-2+deb12u1· arm64 · bookworm-securityAffected
usn · libtasn1-6 · debian · bookworm; usn · libtasn1-6 · debian · 12
- [libtasn1-doc]Affected
Source package: [libtasn1-6]
Details (4)
4.19.0-2+deb12u1· all · bookwormAffected
usn · libtasn1-6 · debian · bookworm; usn · libtasn1-6 · debian · 12
4.19.0-2+deb12u1· all · bookwormAffected
usn · libtasn1-6 · debian · bookworm; usn · libtasn1-6 · debian · 12
4.19.0-2+deb12u1· all · bookworm-securityAffected
usn · libtasn1-6 · debian · bookworm; usn · libtasn1-6 · debian · 12
4.19.0-2+deb12u1· all · bookworm-securityAffected
usn · libtasn1-6 · debian · bookworm; usn · libtasn1-6 · debian · 12
[openSUSE Tumbleweed]
- [libtasn1-6]Unknown
Source package: [libtasn1]
Details (1)
4.21.0-1.5· x86_64 · tumbleweedUnknown · Fixed:
4.21.0-1.1Version impact unknown
usn · libtasn1 · opensuse · tumbleweed
- [libtasn1-6-32bit]Unknown
Source package: [libtasn1]
Details (1)
4.21.0-1.5· x86_64 · tumbleweedUnknown · Fixed:
4.21.0-1.1Version impact unknown
usn · libtasn1 · opensuse · tumbleweed
- [libtasn1-devel]Unknown
Source package: [libtasn1]
Details (1)
4.21.0-1.5· x86_64 · tumbleweedUnknown · Fixed:
4.21.0-1.1Version impact unknown
usn · libtasn1 · opensuse · tumbleweed
- [libtasn1-devel-32bit]Unknown
Source package: [libtasn1]
Details (1)
4.21.0-1.5· x86_64 · tumbleweedUnknown · Fixed:
4.21.0-1.1Version impact unknown
usn · libtasn1 · opensuse · tumbleweed
- [libtasn1-tools]Unknown
Source package: [libtasn1]
Details (1)
4.21.0-1.5· x86_64 · tumbleweedUnknown · Fixed:
4.21.0-1.1Version impact unknown
usn · libtasn1 · opensuse · tumbleweed
[Debian 13 (Trixie)]
- [libtasn1-6]Fixed
Details (2)
4.20.0-2+deb13u1· amd64 · trixieFixed · Fixed:
4.20.0-2+deb13u1usn · libtasn1-6 · debian · 13
4.20.0-2+deb13u1· arm64 · trixieFixed · Fixed:
4.20.0-2+deb13u1usn · libtasn1-6 · debian · 13
- [libtasn1-6-dev]Fixed
Source package: [libtasn1-6]
Details (2)
4.20.0-2+deb13u1· amd64 · trixieFixed · Fixed:
4.20.0-2+deb13u1usn · libtasn1-6 · debian · 13
4.20.0-2+deb13u1· arm64 · trixieFixed · Fixed:
4.20.0-2+deb13u1usn · libtasn1-6 · debian · 13
- [libtasn1-bin]Fixed
Source package: [libtasn1-6]
Details (2)
4.20.0-2+deb13u1· amd64 · trixieFixed · Fixed:
4.20.0-2+deb13u1usn · libtasn1-6 · debian · 13
4.20.0-2+deb13u1· arm64 · trixieFixed · Fixed:
4.20.0-2+deb13u1usn · libtasn1-6 · debian · 13
- [libtasn1-doc]Fixed
Source package: [libtasn1-6]
Details (2)
4.20.0-2+deb13u1· all · trixieFixed · Fixed:
4.20.0-2+deb13u1usn · libtasn1-6 · debian · 13
4.20.0-2+deb13u1· all · trixieFixed · Fixed:
4.20.0-2+deb13u1usn · libtasn1-6 · debian · 13
Observed:
References
- [https://ftp.suse.com/pub/projects/security/csaf/rhsa-2026_36728.json]
- [https://osv.dev/vulnerability/ALPINE-CVE-2025-13151]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2025-13151]
- [https://osv.dev/vulnerability/SUSE-SU-2026:0118-1]
- [https://osv.dev/vulnerability/SUSE-SU-2026:0224-1]
- [https://osv.dev/vulnerability/SUSE-SU-2026:20051-1]
- [https://osv.dev/vulnerability/SUSE-SU-2026:20355-1]
- [https://osv.dev/vulnerability/SUSE-SU-2026:21001-1]
- [https://osv.dev/vulnerability/SUSE-SU-2026:21142-1]
- [https://osv.dev/vulnerability/UBUNTU-CVE-2025-13151]
- [https://osv.dev/vulnerability/openSUSE-SU-2026:10033-1]
- [https://osv.dev/vulnerability/openSUSE-SU-2026:20470-1]
- [https://security-tracker.debian.org/tracker/CVE-2025-13151]
- [https://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-13151.json]
- [https://ubuntu.com/security/notices/USN-7954-1]
- [https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-1194.json]
[CERT-Bund public advisories] · [Debian Security Tracker] · [FIRST EPSS] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX] · [Ubuntu Security Notices (USN)]