Description
GNU Libtasn1 before 4.19.0 has an ETYPE_OK off-by-one array size check that affects asn1_encode_simple_der.
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 | libtasn1-6 | 4.19.0-2 | — |
| Debian 13 | libtasn1-6 | 4.19.0-2 | — |
| Debian 12 | libtasn1-6 | 4.19.0-2 | — |
| Debian 10 | libtasn1-6 | 4.13-3+deb10u1 | DLA-3263-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 25.10 | libtasn1-6 | 4.20.0-2ubuntu0.25.10.1 | USN-7954-1 |
| Ubuntu 24.04 LTS | libtasn1-6 | 4.19.0-3ubuntu0.24.04.2 | USN-7954-1 |
| Ubuntu 22.04 LTS | libtasn1-6 | 4.18.0-4ubuntu0.2 | USN-7954-1 |
Show 4 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 20.04 LTS | libtasn1-6 | 4.16.0-2ubuntu0.1+esm1 | — |
| Ubuntu Pro 18.04 LTS | libtasn1-6 | 4.13-2ubuntu0.1~esm1 | — |
| Ubuntu Pro 16.04 LTS | libtasn1-6 | 4.7-3ubuntu0.16.04.3+esm3 | USN-5707-1 |
| Ubuntu Pro 14.04 LTS | libtasn1-6 | 3.4-3ubuntu0.6+esm1 | — |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 9 | libtasn1 +2 | 4.16.0-8.el9_1 | RHSA-2023:0343 |
| RHEL 8 | libtasn1 +2 | 4.13-4.el8_7 | RHSA-2023:0116 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 8.6 EUS | libtasn1 +2 | 4.13-3.el8_6.1 | RHSA-2024:0427 |
AlmaLinux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux 9 | libtasn1 +2 | 4.16.0-8.el9_1 | ALSA-2023:0343 |
| AlmaLinux 8 | libtasn1 +2 | 4.13-4.el8_7 | ALSA-2023:0116 |
Rocky Linux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Rocky Linux 9 | libtasn1 | 4.16.0-8.el9_1 | RLSA-2023:0343 |
| Rocky Linux 8 | libtasn1 | 4.13-4.el8_7 | RLSA-2023:0116 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP4 | libtasn1 | 4.13-150000.4.8.1 | SUSE-SU-2022:3784-1 |
| SLES 15 SP3 | libtasn1 | 4.13-150000.4.8.1 | SUSE-SU-2022:3784-1 |
| SLES 15 SP2 | libtasn1 | 4.13-150000.4.8.1 | SUSE-SU-2022:3784-1 |
| SLES 15 SP1 | libtasn1 | 4.13-150000.4.8.1 | SUSE-SU-2022:3784-1 |
| SLES 15 | libtasn1 | 4.13-150000.4.8.1 | SUSE-SU-2022:3784-1 |
Show 22 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 12 SP5 | libtasn1 | 4.9-3.13.1 | SUSE-SU-2022:3817-1 |
| SLES 12 SP4 | libtasn1 | 4.9-3.13.1 | SUSE-SU-2022:3817-1 |
| SLES 12 SP3 | libtasn1 | 4.9-3.13.1 | SUSE-SU-2022:3817-1 |
| SLES 12 SP2 | libtasn1 | 3.7-13.7.1 | SUSE-SU-2022:3797-1 |
| SLES for SAP 15 SP2 | libtasn1 | 4.13-150000.4.8.1 | SUSE-SU-2022:3784-1 |
| SLES for SAP 15 SP1 | libtasn1 | 4.13-150000.4.8.1 | SUSE-SU-2022:3784-1 |
| SLES for SAP 15 | libtasn1 | 4.13-150000.4.8.1 | SUSE-SU-2022:3784-1 |
| SLES for SAP 12 SP5 | libtasn1 | 4.9-3.13.1 | SUSE-SU-2022:3817-1 |
| SLES for SAP 12 SP4 | libtasn1 | 4.9-3.13.1 | SUSE-SU-2022:3817-1 |
| SLE Micro 5.3 | libtasn1 | 4.13-150000.4.8.1 | SUSE-SU-2022:3784-1 |
| SLE Micro 5.2 | libtasn1 | 4.13-150000.4.8.1 | SUSE-SU-2022:3784-1 |
| SLE Micro 5.1 | libtasn1 | 4.13-150000.4.8.1 | SUSE-SU-2022:3784-1 |
| SLE HPC 15 SP2 | libtasn1 | 4.13-150000.4.8.1 | SUSE-SU-2022:3784-1 |
| SLE HPC 15 SP1 | libtasn1 | 4.13-150000.4.8.1 | SUSE-SU-2022:3784-1 |
| SLE HPC 15 | libtasn1 | 4.13-150000.4.8.1 | SUSE-SU-2022:3784-1 |
| SUSE OpenStack Cloud Crowbar 9 | libtasn1 | 4.9-3.13.1 | SUSE-SU-2022:3817-1 |
| SUSE OpenStack Cloud 9 | libtasn1 | 4.9-3.13.1 | SUSE-SU-2022:3817-1 |
| SUSE Manager Server 4.1 | libtasn1 | 4.13-150000.4.8.1 | SUSE-SU-2022:3784-1 |
| SUSE Manager Retail Branch Server 4.1 | libtasn1 | 4.13-150000.4.8.1 | SUSE-SU-2022:3784-1 |
| SUSE Manager Proxy 4.1 | libtasn1 | 4.13-150000.4.8.1 | SUSE-SU-2022:3784-1 |
| SUSE Enterprise Storage 7 | libtasn1 | 4.13-150000.4.8.1 | SUSE-SU-2022:3784-1 |
| SUSE Enterprise Storage 6 | libtasn1 | 4.13-150000.4.8.1 | SUSE-SU-2022:3784-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Leap 15.4 | libtasn1 | 4.13-150000.4.8.1 | SUSE-SU-2022:3784-1 |
| openSUSE Leap 15.3 | libtasn1 | 4.13-150000.4.8.1 | SUSE-SU-2022:3784-1 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Leap Micro 5.2 | libtasn1 | 4.13-150000.4.8.1 | SUSE-SU-2022:3784-1 |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.24 | libtasn1 | 4.19-r0 | — |
| Alpine v3.23 | libtasn1 | 4.19-r0 | — |
| Alpine v3.22 | libtasn1 | 4.19-r0 | — |
| Alpine v3.21 | libtasn1 | 4.19-r0 | — |
| Alpine v3.20 | libtasn1 | 4.19-r0 | — |
Show 6 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.19 | libtasn1 | 4.19-r0 | — |
| Alpine v3.18 | libtasn1 | 4.19-r0 | — |
| Alpine v3.17 | libtasn1 | 4.19-r0 | — |
| Alpine v3.16 | libtasn1 | 4.18.0-r1 | — |
| Alpine v3.15 | libtasn1 | 4.18.0-r1 | — |
| Alpine v3.14 | libtasn1 | 4.17.0-r1 | — |
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Amazon Linux 2023 | libtasn1 +2 | 4.19.0-1.amzn2023.0.1 | ALAS2023-2023-201 |
| Amazon Linux 2 | libtasn1 +2 | 4.10-1.amzn2.0.3 | ALAS2-2023-1908 |
Azure Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Azure Linux 2 (CBL-Mariner) | libtasn1 | 4.19.0-1 | — |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 9 | libtasn1 +2 | 4.16.0-8.el9_1 | ELSA-2023-0343 |
| Oracle Linux 8 | libtasn1 +2 | 4.13-4.el8_7 | ELSA-2023-0116 |
Advisories 26
- ALSA-2023:0343 Moderate: libtasn1 security update AlmaLinux Security Advisories · Oct 29, 2026
- ALSA-2023:0116 Moderate: libtasn1 security update AlmaLinux Security Advisories · Oct 29, 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-2024-0794 Dell ECS: Mehrere Schwachstellen BSI CERT-Bund (WID) · Aug 11, 2026
- RHSA-2023:0343 Red Hat Security Advisory: libtasn1 security update Red Hat Security Advisories (RHSA) · Jun 26, 2026
- RHSA-2023:0116 Red Hat Security Advisory: libtasn1 security update Red Hat Security Advisories (RHSA) · Jun 26, 2026
- RHSA-2024:0427 Red Hat Security Advisory: libtasn1 security update Red Hat Security Advisories (RHSA) · Jun 26, 2026
- USN-5707-1 libtasn1-6 vulnerability Ubuntu Security Notices (USN) · Jun 25, 2026
- USN-7954-1 libtasn1-6 vulnerabilities Ubuntu Security Notices (USN) · Apr 22, 2026
- DLA-3263-1 libtasn1-6 - security update Debian Security (DSA / DLA) · Mar 9, 2026
- WID-SEC-2022-1842 libtasn1: Schwachstelle ermöglicht nicht spezifizierten Angriff BSI CERT-Bund (WID) · Feb 11, 2026
- RLSA-2023:0343 Moderate: libtasn1 security update Rocky Linux Security Advisories · Feb 4, 2026
- RLSA-2023:0116 Moderate: libtasn1 security update Rocky Linux Security Advisories · Feb 4, 2026
- SUSE-SU-2022:3797-1 Security update for libtasn1 SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2022:3817-1 Security update for libtasn1 SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2022:3784-1 Security update for libtasn1 SUSE / openSUSE Security Updates · Feb 4, 2026
- WID-SEC-2023-1542 Red Hat OpenShift: Mehrere Schwachstellen BSI CERT-Bund (WID) · Nov 18, 2025
- ICSA-23-348-10 Siemens SIMATIC S7-1500 CISA ICS & IT advisories · Aug 12, 2025
- WID-SEC-2024-1307 Red Hat OpenShift Service Mesh Containers: Mehrere Schwachstellen BSI CERT-Bund (WID) · Feb 5, 2025
- WID-SEC-2024-0106 Oracle Communications: Mehrere Schwachstellen BSI CERT-Bund (WID) · Jan 16, 2024
- WID-SEC-2023-1021 Oracle Communications: Mehrere Schwachstellen BSI CERT-Bund (WID) · Jun 29, 2023
- ALAS2023-2023-201 Important: libtasn1 security update (Amazon Linux 2023) Amazon Linux Security Center (ALAS) · Jun 7, 2023
- WID-SEC-2023-0561 Xerox FreeFlow Print Server: Mehrere Schwachstellen BSI CERT-Bund (WID) · May 18, 2023
- ELSA-2023-0343 Moderate: libtasn1 security update (Oracle Linux 9) Oracle Linux Security Advisories (ELSA) · Jan 25, 2023
- ALAS2-2023-1908 Important: libtasn1 security update (Amazon Linux 2) Amazon Linux Security Center (ALAS) · Jan 20, 2023
- ELSA-2023-0116 Moderate: libtasn1 security update (Oracle Linux 8) Oracle Linux Security Advisories (ELSA) · Jan 12, 2023
References
- https://gitlab.com/gnutls/libtasn1/-/commit/44a700d2051a666235748970c2df047ff207aeb5
- https://gitlab.com/gnutls/libtasn1/-/issues/32
- https://bugs.gentoo.org/866237
- FEDORA-2022-061f857481 vendor-advisory
- FEDORA-2022-3c933ffaca vendor-advisory
- FEDORA-2022-19056934a7 vendor-advisory
- https://security.netapp.com/advisory/ntap-20221118-0006/
- FEDORA-2022-3f9ee1ad91 vendor-advisory
- [debian-lts-announce] 20230109 [SECURITY] [DLA 3263-1] libtasn1-6 security update mailing-list