CVE catalog
CVE-2024-12243
GnuTLS vulnerability
- Severity
- Medium · CVSS 5.3
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L - Published
- Source
- [NVD] · [CVE record]
- EPSS
- 1.29% · Oct 25, 2026
A flaw was found in GnuTLS, which relies on libtasn1 for ASN.1 data processing. Due to an inefficient algorithm in libtasn1, decoding certain DER-encoded certificate data can take excessive time, leading to increased resource consumption. This flaw allows a remote attacker to send a specially crafted certificate, causing GnuTLS to become unresponsive or slow, resulting in a denial-of-service condition.
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 | gnutls28 | sid | 3.8.13-1 | fixed |
| Debian | gnutls28 | forky | 3.8.13-1 | fixed |
| Debian | gnutls28 | trixie | 3.8.9-3+deb13u4 | fixed |
| Debian | gnutls28 | trixie-security | 3.8.9-3+deb13u4 | fixed |
| Debian | gnutls28 | bookworm | 3.7.9-2+deb12u7 | fixed |
| Debian | gnutls28 | bookworm-security | 3.7.9-2+deb12u7 | fixed |
| Ubuntu | gnutls28 | noble | 3.8.3-1.1ubuntu3.3 | fixed |
| Ubuntu | gnutls-bin | noble | 3.8.3-1.1ubuntu3.3 | fixed |
| Ubuntu | gnutls-doc | noble | 3.8.3-1.1ubuntu3.3 | fixed |
| Ubuntu | libgnutls-dane0t64 | noble | 3.8.3-1.1ubuntu3.3 | fixed |
| Ubuntu | libgnutls-openssl27t64 | noble | 3.8.3-1.1ubuntu3.3 | fixed |
| Ubuntu | libgnutls28-dev | noble | 3.8.3-1.1ubuntu3.3 | fixed |
| Ubuntu | libgnutls30t64 | noble | 3.8.3-1.1ubuntu3.3 | fixed |
| Alpine | gnutls | 3.20 | 3.8.12-r0 | fixed |
| Alpine | gnutls | 3.21 | 3.8.12-r0 | fixed |
| Alpine | gnutls | 3.22 | 3.8.12-r0 | fixed |
| Alpine | gnutls | 3.23 | 3.8.11-r0 | fixed |
| Alpine | gnutls | 3.24 | 3.8.11-r0 | fixed |
| Ubuntu | gnutls28 | pro | 3.8.3-1.1ubuntu3.1+Fips1 | vulnerable |
| Ubuntu | gnutls28 | pro | 3.8.3-1.1ubuntu3.4+Fips1 | fixed |
| Ubuntu | gnutls28 | 20.04 | 3.6.9-5ubuntu1 | vulnerable |
| Ubuntu | gnutls28 | 20.04 | 3.6.9-5ubuntu2 | vulnerable |
| Ubuntu | gnutls28 | 20.04 | 3.6.10-5 | vulnerable |
| Ubuntu | gnutls28 | 20.04 | 3.6.11.1-2 | vulnerable |
| Ubuntu | gnutls28 | 20.04 | 3.6.11.1-2ubuntu2 | vulnerable |
| Ubuntu | gnutls28 | 20.04 | 3.6.13-2ubuntu1 | vulnerable |
| Ubuntu | gnutls28 | 20.04 | 3.6.13-2ubuntu1.1 | vulnerable |
| Ubuntu | gnutls28 | 20.04 | 3.6.13-2ubuntu1.2 | vulnerable |
| Ubuntu | gnutls28 | 20.04 | 3.6.13-2ubuntu1.3 | vulnerable |
| Ubuntu | gnutls28 | 20.04 | 3.6.13-2ubuntu1.6 | vulnerable |
| Ubuntu | gnutls28 | 20.04 | 3.6.13-2ubuntu1.7 | vulnerable |
| Ubuntu | gnutls28 | 20.04 | 3.6.13-2ubuntu1.8 | vulnerable |
| Ubuntu | gnutls28 | 20.04 | 3.6.13-2ubuntu1.9 | vulnerable |
| Ubuntu | gnutls28 | 20.04 | 3.6.13-2ubuntu1.10 | vulnerable |
| Ubuntu | gnutls28 | 20.04 | 3.6.13-2ubuntu1.11 | vulnerable |
| Ubuntu | gnutls28 | 20.04 | 3.6.13-2ubuntu1.12 | fixed |
| Ubuntu | gnutls28 | 22.04 | 3.7.1-5ubuntu1 | vulnerable |
| Ubuntu | gnutls28 | 22.04 | 3.7.2-2ubuntu1 | vulnerable |
| Ubuntu | gnutls28 | 22.04 | 3.7.2-4ubuntu1 | vulnerable |
| Ubuntu | gnutls28 | 22.04 | 3.7.2-5ubuntu1 | vulnerable |
| Ubuntu | gnutls28 | 22.04 | 3.7.3-4ubuntu1 | vulnerable |
| Ubuntu | gnutls28 | 22.04 | 3.7.3-4ubuntu1.1 | vulnerable |
| Ubuntu | gnutls28 | 22.04 | 3.7.3-4ubuntu1.2 | vulnerable |
| Ubuntu | gnutls28 | 22.04 | 3.7.3-4ubuntu1.3 | vulnerable |
| Ubuntu | gnutls28 | 22.04 | 3.7.3-4ubuntu1.4 | vulnerable |
| Ubuntu | gnutls28 | 22.04 | 3.7.3-4ubuntu1.5 | vulnerable |
| Ubuntu | gnutls28 | 22.04 | 3.7.3-4ubuntu1.6 | fixed |
| Ubuntu | gnutls28 | 24.04 | 3.8.1-4ubuntu1 | vulnerable |
| Ubuntu | gnutls28 | 24.04 | 3.8.1-4ubuntu6 | vulnerable |
| Ubuntu | gnutls28 | 24.04 | 3.8.1-4ubuntu7 | vulnerable |
| Ubuntu | gnutls28 | 24.04 | 3.8.3-1ubuntu1 | vulnerable |
| Ubuntu | gnutls28 | 24.04 | 3.8.3-1.1ubuntu2 | vulnerable |
| Ubuntu | gnutls28 | 24.04 | 3.8.3-1.1ubuntu3 | vulnerable |
| Ubuntu | gnutls28 | 24.04 | 3.8.3-1.1ubuntu3.1 | vulnerable |
| Ubuntu | gnutls28 | 24.04 | 3.8.3-1.1ubuntu3.2 | vulnerable |
| Ubuntu | gnutls28 | 24.04 | 3.8.3-1.1ubuntu3.3 | fixed |
| Ubuntu | gnutls28 | 20.04 | 3.6.9-5ubuntu1 | vulnerable |
| Ubuntu | gnutls28 | 20.04 | 3.6.9-5ubuntu2 | vulnerable |
| Ubuntu | gnutls28 | 20.04 | 3.6.10-5 | vulnerable |
| Ubuntu | gnutls28 | 20.04 | 3.6.11.1-2 | vulnerable |
| Ubuntu | gnutls28 | 20.04 | 3.6.11.1-2ubuntu2 | vulnerable |
| Ubuntu | gnutls28 | 20.04 | 3.6.13-2ubuntu1 | vulnerable |
| Ubuntu | gnutls28 | 20.04 | 3.6.13-2ubuntu1.1 | vulnerable |
| Ubuntu | gnutls28 | 20.04 | 3.6.13-2ubuntu1.2 | vulnerable |
| Ubuntu | gnutls28 | 20.04 | 3.6.13-2ubuntu1.3 | vulnerable |
| Ubuntu | gnutls28 | 20.04 | 3.6.13-2ubuntu1.6 | vulnerable |
| Ubuntu | gnutls28 | 20.04 | 3.6.13-2ubuntu1.7 | vulnerable |
| Ubuntu | gnutls28 | 20.04 | 3.6.13-2ubuntu1.8 | vulnerable |
| Ubuntu | gnutls28 | 20.04 | 3.6.13-2ubuntu1.9 | vulnerable |
| Ubuntu | gnutls28 | 20.04 | 3.6.13-2ubuntu1.10 | vulnerable |
| Ubuntu | gnutls28 | 20.04 | 3.6.13-2ubuntu1.11 | vulnerable |
| Ubuntu | gnutls28 | 20.04 | 3.6.13-2ubuntu1.12 | fixed |
| Ubuntu | gnutls28 | 22.04 | 3.7.1-5ubuntu1 | vulnerable |
| Ubuntu | gnutls28 | 22.04 | 3.7.2-2ubuntu1 | vulnerable |
| Ubuntu | gnutls28 | 22.04 | 3.7.2-4ubuntu1 | vulnerable |
| Ubuntu | gnutls28 | 22.04 | 3.7.2-5ubuntu1 | vulnerable |
| Ubuntu | gnutls28 | 22.04 | 3.7.3-4ubuntu1 | vulnerable |
| Ubuntu | gnutls28 | 22.04 | 3.7.3-4ubuntu1.1 | vulnerable |
| Ubuntu | gnutls28 | 22.04 | 3.7.3-4ubuntu1.2 | vulnerable |
| Ubuntu | gnutls28 | 22.04 | 3.7.3-4ubuntu1.3 | vulnerable |
| Ubuntu | gnutls28 | 22.04 | 3.7.3-4ubuntu1.4 | vulnerable |
| Ubuntu | gnutls28 | 22.04 | 3.7.3-4ubuntu1.5 | vulnerable |
| Ubuntu | gnutls28 | 22.04 | 3.7.3-4ubuntu1.6 | fixed |
| Ubuntu | gnutls28 | 24.04 | 3.8.1-4ubuntu1 | vulnerable |
| Ubuntu | gnutls28 | 24.04 | 3.8.1-4ubuntu6 | vulnerable |
| Ubuntu | gnutls28 | 24.04 | 3.8.1-4ubuntu7 | vulnerable |
| Ubuntu | gnutls28 | 24.04 | 3.8.3-1ubuntu1 | vulnerable |
| Ubuntu | gnutls28 | 24.04 | 3.8.3-1.1ubuntu2 | vulnerable |
| Ubuntu | gnutls28 | 24.04 | 3.8.3-1.1ubuntu3 | vulnerable |
| Ubuntu | gnutls28 | 24.04 | 3.8.3-1.1ubuntu3.1 | vulnerable |
| Ubuntu | gnutls28 | 24.04 | 3.8.3-1.1ubuntu3.2 | vulnerable |
| Ubuntu | gnutls28 | 24.04 | 3.8.3-1.1ubuntu3.3 | fixed |
| Suse | gnutls | linux micro 6.1 | 3.8.3-slfo.1.1_2.1 | fixed |
| Suse | gnutls | linux enterprise module for certifications 15 sp7 | 3.8.3-150600.4.6.2 | fixed |
| Suse | gnutls | linux micro 6.0 | 3.8.3-3.1 | fixed |
| Suse | gnutls | linux enterprise server ltss extended security 12 sp5 | 3.3.27-3.9.1 | fixed |
| Suse | gnutls | linux enterprise micro 5.1 | 3.6.7-150200.14.34.1 | fixed |
| Suse | gnutls | linux enterprise micro 5.2 | 3.6.7-150200.14.34.1 | fixed |
| Suse | gnutls | linux enterprise micro 5.4 | 3.7.3-150400.4.47.1 | fixed |
| Suse | gnutls | linux enterprise micro 5.5 | 3.7.3-150400.4.47.1 | fixed |
| Suse | gnutls | linux enterprise server ltss extended security 12 sp5 | 3.4.17-8.17.1 | fixed |
| Suse | gnutls | linux enterprise module for basesystem 15 sp6 | 3.8.3-150600.4.6.2 | fixed |
| Opensuse | gnutls | leap 15.6 | 3.8.3-150600.4.6.2 | fixed |
| Suse | gnutls | linux enterprise micro 5.3 | 3.7.3-150400.11.1 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | gnutls28 | source | sid | 3.8.9-2 | not yet assigned | Not reported | Not reported |
| Debian | gnutls28 | source | forky | 3.8.9-2 | not yet assigned | Not reported | Not reported |
| Debian | gnutls28 | source | trixie | 3.8.9-2 | not yet assigned | Not reported | Not reported |
| Debian | gnutls28 | source | bookworm | 3.7.9-2+deb12u4 | not yet assigned | Not reported | Not reported |
| Ubuntu | gnutls28 | deb | noble | 3.8.3-1.1ubuntu3.3 | Not reported | Not reported | Not reported |
| Ubuntu | gnutls-bin | deb | noble | 3.8.3-1.1ubuntu3.3 | Not reported | Not reported | Not reported |
| Ubuntu | gnutls-doc | deb | noble | 3.8.3-1.1ubuntu3.3 | Not reported | Not reported | Not reported |
| Ubuntu | libgnutls-dane0t64 | deb | noble | 3.8.3-1.1ubuntu3.3 | Not reported | Not reported | Not reported |
| Ubuntu | libgnutls-openssl27t64 | deb | noble | 3.8.3-1.1ubuntu3.3 | Not reported | Not reported | Not reported |
| Ubuntu | libgnutls28-dev | deb | noble | 3.8.3-1.1ubuntu3.3 | Not reported | Not reported | Not reported |
| Ubuntu | libgnutls30t64 | deb | noble | 3.8.3-1.1ubuntu3.3 | Not reported | Not reported | Not reported |
| Alpine | gnutls | apk | 3.20 | 3.8.12-r0 | Not reported | ALPINE-CVE-2024-12243 | Not reported |
| Alpine | gnutls | apk | 3.21 | 3.8.12-r0 | Not reported | ALPINE-CVE-2024-12243 | Not reported |
| Alpine | gnutls | apk | 3.22 | 3.8.12-r0 | Not reported | ALPINE-CVE-2024-12243 | Not reported |
| Alpine | gnutls | apk | 3.23 | 3.8.11-r0 | Not reported | ALPINE-CVE-2024-12243 | Not reported |
| Alpine | gnutls | apk | 3.24 | 3.8.11-r0 | Not reported | ALPINE-CVE-2024-12243 | Not reported |
| Ubuntu | gnutls28 | deb | pro | 3.8.3-1.1ubuntu3.4+Fips1 | Not reported | UBUNTU-CVE-2024-12243 | Not reported |
| Ubuntu | gnutls28 | deb | 20.04 | 3.6.13-2ubuntu1.12 | Not reported | UBUNTU-CVE-2024-12243 | Not reported |
| Ubuntu | gnutls28 | deb | 22.04 | 3.7.3-4ubuntu1.6 | Not reported | UBUNTU-CVE-2024-12243 | Not reported |
| Ubuntu | gnutls28 | deb | 24.04 | 3.8.3-1.1ubuntu3.3 | Not reported | UBUNTU-CVE-2024-12243 | Not reported |
| Ubuntu | gnutls28 | deb | 20.04 | 3.6.13-2ubuntu1.12 | Not reported | USN-7281-1 | Not reported |
| Ubuntu | gnutls28 | deb | 22.04 | 3.7.3-4ubuntu1.6 | Not reported | USN-7281-1 | Not reported |
| Ubuntu | gnutls28 | deb | 24.04 | 3.8.3-1.1ubuntu3.3 | Not reported | USN-7281-1 | Not reported |
| Suse | gnutls | rpm | linux micro 6.1 | 3.8.3-slfo.1.1_2.1 | Not reported | SUSE-SU-2025:20297-1 | Not reported |
| Suse | gnutls | rpm | linux enterprise module for certifications 15 sp7 | 3.8.3-150600.4.6.2 | Not reported | SUSE-SU-2025:00764-1 | Not reported |
| Suse | gnutls | rpm | linux micro 6.0 | 3.8.3-3.1 | Not reported | SUSE-SU-2025:20157-1 | Not reported |
| Suse | gnutls | rpm | linux enterprise server ltss extended security 12 sp5 | 3.3.27-3.9.1 | Not reported | SUSE-SU-2025:0767-1 | Not reported |
| Suse | gnutls | rpm | linux enterprise micro 5.1 | 3.6.7-150200.14.34.1 | Not reported | SUSE-SU-2025:0727-1 | Not reported |
| Suse | gnutls | rpm | linux enterprise micro 5.2 | 3.6.7-150200.14.34.1 | Not reported | SUSE-SU-2025:0727-1 | Not reported |
| Suse | gnutls | rpm | linux enterprise micro 5.4 | 3.7.3-150400.4.47.1 | Not reported | SUSE-SU-2025:0765-1 | Not reported |
| Suse | gnutls | rpm | linux enterprise micro 5.5 | 3.7.3-150400.4.47.1 | Not reported | SUSE-SU-2025:0765-1 | Not reported |
| Suse | gnutls | rpm | linux enterprise server ltss extended security 12 sp5 | 3.4.17-8.17.1 | Not reported | SUSE-SU-2025:0766-1 | Not reported |
| Suse | gnutls | rpm | linux enterprise module for basesystem 15 sp6 | 3.8.3-150600.4.6.2 | Not reported | SUSE-SU-2025:0764-1 | Not reported |
| Opensuse | gnutls | rpm | leap 15.6 | 3.8.3-150600.4.6.2 | Not reported | SUSE-SU-2025:0764-1 | Not reported |
| Suse | gnutls | rpm | linux enterprise micro 5.3 | 3.7.3-150400.11.1 | Not reported | SUSE-SU-2025:0728-1 | Not reported |
OpenFactory catalog packages
Matching against OpenFactory catalog package versions is in progress.
References
- [https://cert-portal.siemens.com/productcert/csaf/ssa-082556.json]
- [https://ftp.suse.com/pub/projects/security/csaf/rhsa-2025_4051.json]
- [https://nvd.nist.gov/vuln/detail/CVE-2024-12243]
- [https://osv.dev/vulnerability/ALPINE-CVE-2024-12243]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2024-12243]
- [https://osv.dev/vulnerability/DLA-4063-1]
- [https://osv.dev/vulnerability/DSA-5867-1]
- [https://osv.dev/vulnerability/SUSE-SU-2025:00764-1]
- [https://osv.dev/vulnerability/SUSE-SU-2025:0727-1]
- [https://osv.dev/vulnerability/SUSE-SU-2025:0728-1]
- [https://osv.dev/vulnerability/SUSE-SU-2025:0764-1]
- [https://osv.dev/vulnerability/SUSE-SU-2025:0765-1]
- [https://osv.dev/vulnerability/SUSE-SU-2025:0766-1]
- [https://osv.dev/vulnerability/SUSE-SU-2025:0767-1]
- [https://osv.dev/vulnerability/SUSE-SU-2025:20157-1]
- [https://osv.dev/vulnerability/SUSE-SU-2025:20297-1]
- [https://osv.dev/vulnerability/UBUNTU-CVE-2024-12243]
- [https://osv.dev/vulnerability/USN-7281-1]
- [https://security-tracker.debian.org/tracker/CVE-2024-12243]
- [https://security.access.redhat.com/data/csaf/v2/vex/2024/cve-2024-12243.json]
- [https://ubuntu.com/security/notices/USN-7281-1]
- [https://wid.cert-bund.de/.well-known/csaf/white/2025/wid-sec-w-2025-0302.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] · [Ubuntu Security Notices (USN)]