# CVE-2013-2116: Denial of service in n/a > Remote attackers can cause a denial of service via a crafted padding length in GnuTLS, leading to a buffer over-read and crash. - **Severity:** Medium 5.0 (`AV:N/AC:L/Au:N/C:N/I:N/A:P`) - **Exploited in the wild:** Not known - **Login needed:** Not needed - **Attackable:** Over the internet - **Victim action needed:** Not needed - **Fix available:** Yes - **Published:** 3 Jul 2013 - **Updated:** 6 Aug 2024 - **Also known as:** DSA-2697-1, GHSA-2vj6-mvxm-4f5f, RHSA-2013:0883, RHSA-2013:1076 ## What is CVE-2013-2116? CVE-2013-2116 is a medium-severity denial of service vulnerability in Gnu Gnutls, published on 3 Jul 2013. An attacker can exploit it over the internet without logging in, with no action from the victim. ### Official description The _gnutls_ciphertext2compressed function in lib/gnutls_cipher.c in GnuTLS 2.12.23 allows remote attackers to cause a denial of service (buffer over-read and crash) via a crafted padding length. NOTE: this might be due to an incorrect fix for CVE-2013-0169. Weakness: CWE-20 (Improper Input Validation) ## Which versions are affected by CVE-2013-2116? It affects 1 product. | Package | Ecosystem | Affected | Fixed in | | --- | --- | --- | --- | | `gnutls` | Red Hat:enterprise_linux:5::server | All versions | 0:1.4.1-10.el5_9.2 | | `gnutls-debuginfo` | Red Hat:enterprise_linux:5::server | All versions | 0:1.4.1-10.el5_9.2 | | `gnutls-devel` | Red Hat:enterprise_linux:5::server | All versions | 0:1.4.1-10.el5_9.2 | | `gnutls-utils` | Red Hat:enterprise_linux:5::server | All versions | 0:1.4.1-10.el5_9.2 | | `gnutls` | Red Hat:enterprise_linux:6::client | All versions | 0:2.8.5-10.el6_4.2 | | `gnutls-debuginfo` | Red Hat:enterprise_linux:6::client | All versions | 0:2.8.5-10.el6_4.2 | | `gnutls-devel` | Red Hat:enterprise_linux:6::client | All versions | 0:2.8.5-10.el6_4.2 | | `gnutls-guile` | Red Hat:enterprise_linux:6::client | All versions | 0:2.8.5-10.el6_4.2 | | `gnutls-utils` | Red Hat:enterprise_linux:6::client | All versions | 0:2.8.5-10.el6_4.2 | | `gnutls` | Red Hat:enterprise_linux:6::computenode | All versions | 0:2.8.5-10.el6_4.2 | | `gnutls-debuginfo` | Red Hat:enterprise_linux:6::computenode | All versions | 0:2.8.5-10.el6_4.2 | | `gnutls-devel` | Red Hat:enterprise_linux:6::computenode | All versions | 0:2.8.5-10.el6_4.2 | | `gnutls-guile` | Red Hat:enterprise_linux:6::computenode | All versions | 0:2.8.5-10.el6_4.2 | | `gnutls-utils` | Red Hat:enterprise_linux:6::computenode | All versions | 0:2.8.5-10.el6_4.2 | | `rhev-hypervisor6` | Red Hat:enterprise_linux:6::hypervisor | All versions | 0:6.4-20130709.0.el6_4 | | `gnutls` | Red Hat:enterprise_linux:6::server | All versions | 0:2.8.5-10.el6_4.2 | | `gnutls-debuginfo` | Red Hat:enterprise_linux:6::server | All versions | 0:2.8.5-10.el6_4.2 | | `gnutls-devel` | Red Hat:enterprise_linux:6::server | All versions | 0:2.8.5-10.el6_4.2 | | `gnutls-guile` | Red Hat:enterprise_linux:6::server | All versions | 0:2.8.5-10.el6_4.2 | | `gnutls-utils` | Red Hat:enterprise_linux:6::server | All versions | 0:2.8.5-10.el6_4.2 | | `gnutls` | Red Hat:enterprise_linux:6::workstation | All versions | 0:2.8.5-10.el6_4.2 | | `gnutls-debuginfo` | Red Hat:enterprise_linux:6::workstation | All versions | 0:2.8.5-10.el6_4.2 | | `gnutls-devel` | Red Hat:enterprise_linux:6::workstation | All versions | 0:2.8.5-10.el6_4.2 | | `gnutls-guile` | Red Hat:enterprise_linux:6::workstation | All versions | 0:2.8.5-10.el6_4.2 | | `gnutls-utils` | Red Hat:enterprise_linux:6::workstation | All versions | 0:2.8.5-10.el6_4.2 | Products: Gnu Gnutls. ## How do I fix CVE-2013-2116? Apply the vendor's patch. ## Is CVE-2013-2116 being exploited? There is no known exploitation of CVE-2013-2116 in the wild and no public exploit code. ## Other vulnerabilities in Gnu Gnutls - [CVE-2008-1948](https://insights.sbomify.com/CVE-2008-1948/): Memory corruption in n/a (critical 10.0) - [CVE-2017-5334](https://insights.sbomify.com/CVE-2017-5334/): Use after free in n/a (critical 9.8) - [CVE-2017-5336](https://insights.sbomify.com/CVE-2017-5336/): Memory corruption in n/a (critical 9.8) - [CVE-2017-5337](https://insights.sbomify.com/CVE-2017-5337/): Memory corruption in n/a (critical 9.8) - [CVE-2008-1949](https://insights.sbomify.com/CVE-2008-1949/): Null dereference in n/a (critical 9.3) ## Fix prompt for AI coding agents ```text Check this codebase for CVE-2013-2116 and fix it if it is affected. What it is: CVE-2013-2116 is a medium-severity denial of service vulnerability in Gnu Gnutls, published on 3 Jul 2013. 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-2013-2116 in the wild and no public exploit code. Affected product: Gnu Gnutls. 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-2013-2116/ (Markdown: https://insights.sbomify.com/CVE-2013-2116/index.md) ``` ## Sources - CVE record: https://www.cve.org/CVERecord?id=CVE-2013-2116 - NVD: https://nvd.nist.gov/vuln/detail/CVE-2013-2116 - OSV: https://osv.dev/vulnerability/CVE-2013-2116 --- From sbomify Insights: https://insights.sbomify.com/CVE-2013-2116/ Summaries are generated and may contain mistakes; the official description above is the record.