CVE-2025-13151 CVE-2025-13151
High 7.5
Published
Updated
Check this codebase for CVE-2025-13151 and fix it if it is affected.
What it is: CVE-2025-13151 is a high-severity memory corruption vulnerability in GnuTLS libtasn1, published on 7 Jan 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2025-13151 in the wild and no public exploit code.
Affected product: GnuTLS libtasn1. No package-level version data is available, so check the vendor advisory linked from the reference page.
Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.
Reference: https://insights.sbomify.com/CVE-2025-13151/ (Markdown: https://insights.sbomify.com/CVE-2025-13151/index.md)
A stack-based buffer overflow in libtasn1 allows attackers to execute arbitrary code or cause denial of service via malformed ASN.1 data.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2025-13151?
CVE-2025-13151 is a high-severity memory corruption vulnerability in GnuTLS libtasn1, published on 7 Jan 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
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.
Weakness: CWE-787
Which versions are affected by CVE-2025-13151?
It affects 1 product.
Linux distribution packages (40)
libtasn1 AlmaLinux:10 | All versions | 4.20.0-5.el10_2 |
libtasn1-devel AlmaLinux:10 | All versions | 4.20.0-5.el10_2 |
libtasn1-tools AlmaLinux:10 | All versions | 4.20.0-5.el10_2 |
libtasn1 AlmaLinux:8 | All versions | 4.13-6.el8_10 |
libtasn1-devel AlmaLinux:8 | All versions | 4.13-6.el8_10 |
libtasn1-tools AlmaLinux:8 | All versions | 4.13-6.el8_10 |
libtasn1 AlmaLinux:9 | All versions | 4.16.0-10.el9_8 |
libtasn1-devel AlmaLinux:9 | All versions | 4.16.0-10.el9_8 |
libtasn1-tools AlmaLinux:9 | All versions | 4.16.0-10.el9_8 |
libtasn1 Red Hat:enterprise_linux:10.2 | All versions | 0:4.20.0-5.el10_2 |
libtasn1-debuginfo Red Hat:enterprise_linux:10.2 | All versions | 0:4.20.0-5.el10_2 |
libtasn1-debugsource Red Hat:enterprise_linux:10.2 | All versions | 0:4.20.0-5.el10_2 |
libtasn1-devel Red Hat:enterprise_linux:10.2 | All versions | 0:4.20.0-5.el10_2 |
libtasn1-tools Red Hat:enterprise_linux:10.2 | All versions | 0:4.20.0-5.el10_2 |
libtasn1-tools-debuginfo Red Hat:enterprise_linux:10.2 | All versions | 0:4.20.0-5.el10_2 |
libtasn1-debuginfo Red Hat:enterprise_linux:8::appstream | All versions | 0:4.13-6.el8_10 |
libtasn1-debugsource Red Hat:enterprise_linux:8::appstream | All versions | 0:4.13-6.el8_10 |
libtasn1-devel Red Hat:enterprise_linux:8::appstream | All versions | 0:4.13-6.el8_10 |
libtasn1-tools Red Hat:enterprise_linux:8::appstream | All versions | 0:4.13-6.el8_10 |
libtasn1-tools-debuginfo Red Hat:enterprise_linux:8::appstream | All versions | 0:4.13-6.el8_10 |
libtasn1 Red Hat:enterprise_linux:8::baseos | All versions | 0:4.13-6.el8_10 |
libtasn1-debuginfo Red Hat:enterprise_linux:8::baseos | All versions | 0:4.13-6.el8_10 |
libtasn1-debugsource Red Hat:enterprise_linux:8::baseos | All versions | 0:4.13-6.el8_10 |
libtasn1-tools-debuginfo Red Hat:enterprise_linux:8::baseos | All versions | 0:4.13-6.el8_10 |
libtasn1-debuginfo Red Hat:enterprise_linux:9::appstream | All versions | 0:4.16.0-10.el9_8 |
libtasn1-debugsource Red Hat:enterprise_linux:9::appstream | All versions | 0:4.16.0-10.el9_8 |
libtasn1-devel Red Hat:enterprise_linux:9::appstream | All versions | 0:4.16.0-10.el9_8 |
libtasn1-tools Red Hat:enterprise_linux:9::appstream | All versions | 0:4.16.0-10.el9_8 |
libtasn1-tools-debuginfo Red Hat:enterprise_linux:9::appstream | All versions | 0:4.16.0-10.el9_8 |
libtasn1 Red Hat:enterprise_linux:9::baseos | All versions | 0:4.16.0-10.el9_8 |
libtasn1-debuginfo Red Hat:enterprise_linux:9::baseos | All versions | 0:4.16.0-10.el9_8 |
libtasn1-debugsource Red Hat:enterprise_linux:9::baseos | All versions | 0:4.16.0-10.el9_8 |
libtasn1-tools-debuginfo Red Hat:enterprise_linux:9::baseos | All versions | 0:4.16.0-10.el9_8 |
libtasn1 Red Hat:hummingbird:1 | All versions | 0:4.21.0-1.1.hum1 |
libtasn1-devel Red Hat:hummingbird:1 | All versions | 0:4.21.0-1.1.hum1 |
libtasn1-tools Red Hat:hummingbird:1 | All versions | 0:4.21.0-1.1.hum1 |
libtasn1 Rocky Linux:10 | All versions | 0:4.20.0-5.el10_2 |
libtasn1 Rocky Linux:8 | All versions | 0:4.13-6.el8_10 |
libtasn1 Rocky Linux:9 | All versions | 0:4.16.0-10.el9_8 |
libtasn1 SUSE:Linux Enterprise Micro 5.2 | All versions | 4.13-150000.4.14.1 |
Products include Gnu Libtasn1.
How do I fix CVE-2025-13151?
Apply the vendor's patch.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2025-13151 being exploited?
There is no known exploitation of CVE-2025-13151 in the wild and no public exploit code.
Other vulnerabilities in GnuTLS libtasn1
Sources
Also known as ALPINE-CVE-2025-13151, ALSA-2026:28235, ALSA-2026:28253, ALSA-2026:36728, AZL-73664, AZL-74006 and 36 more.