CVE-2022-2509 Use after free in GnuTLS
High 7.5
Published
Updated
Check this codebase for CVE-2022-2509 and fix it if it is affected.
What it is: CVE-2022-2509 is a high-severity use after free vulnerability in Debian Debian Linux, published on 1 Aug 2022. 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-2022-2509 in the wild and no public exploit code.
Affected product: Debian Debian Linux. 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-2022-2509/ (Markdown: https://insights.sbomify.com/CVE-2022-2509/index.md)
A double free error in GnuTLS PKCS7 signature verification allows attackers to cause denial of service or potentially execute arbitrary code.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2022-2509?
CVE-2022-2509 is a high-severity use after free vulnerability in Debian Debian Linux, published on 1 Aug 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
A vulnerability found in gnutls. This security flaw happens because of a double free error occurs during verification of pkcs7 signatures in gnutls_pkcs7_verify function.
Weakness: CWE-415
Which versions are affected by CVE-2022-2509?
It affects 4 products.
Linux distribution packages (40)
gnutls AlmaLinux:8 | All versions | 3.6.16-5.el8_6 |
gnutls-c++ AlmaLinux:8 | All versions | 3.6.16-5.el8_6 |
gnutls-dane AlmaLinux:8 | All versions | 3.6.16-5.el8_6 |
gnutls-devel AlmaLinux:8 | All versions | 3.6.16-5.el8_6 |
gnutls-utils AlmaLinux:8 | All versions | 3.6.16-5.el8_6 |
gnutls AlmaLinux:9 | All versions | 3.7.6-12.el9_0 |
gnutls-c++ AlmaLinux:9 | All versions | 3.7.6-12.el9_0 |
gnutls-dane AlmaLinux:9 | All versions | 3.7.6-12.el9_0 |
gnutls-devel AlmaLinux:9 | All versions | 3.7.6-12.el9_0 |
gnutls-utils AlmaLinux:9 | All versions | 3.7.6-12.el9_0 |
gnutls-c++ Red Hat:enterprise_linux:8::appstream | All versions | 0:3.6.16-5.el8_6 |
gnutls-c++-debuginfo Red Hat:enterprise_linux:8::appstream | All versions | 0:3.6.16-5.el8_6 |
gnutls-dane Red Hat:enterprise_linux:8::appstream | All versions | 0:3.6.16-5.el8_6 |
gnutls-dane-debuginfo Red Hat:enterprise_linux:8::appstream | All versions | 0:3.6.16-5.el8_6 |
gnutls-debuginfo Red Hat:enterprise_linux:8::appstream | All versions | 0:3.6.16-5.el8_6 |
gnutls-debugsource Red Hat:enterprise_linux:8::appstream | All versions | 0:3.6.16-5.el8_6 |
gnutls-devel Red Hat:enterprise_linux:8::appstream | All versions | 0:3.6.16-5.el8_6 |
gnutls-utils Red Hat:enterprise_linux:8::appstream | All versions | 0:3.6.16-5.el8_6 |
gnutls-utils-debuginfo Red Hat:enterprise_linux:8::appstream | All versions | 0:3.6.16-5.el8_6 |
gnutls Red Hat:enterprise_linux:8::baseos | All versions | 0:3.6.16-5.el8_6 |
gnutls-c++-debuginfo Red Hat:enterprise_linux:8::baseos | All versions | 0:3.6.16-5.el8_6 |
gnutls-dane-debuginfo Red Hat:enterprise_linux:8::baseos | All versions | 0:3.6.16-5.el8_6 |
gnutls-debuginfo Red Hat:enterprise_linux:8::baseos | All versions | 0:3.6.16-5.el8_6 |
gnutls-debugsource Red Hat:enterprise_linux:8::baseos | All versions | 0:3.6.16-5.el8_6 |
gnutls-utils-debuginfo Red Hat:enterprise_linux:8::baseos | All versions | 0:3.6.16-5.el8_6 |
gnutls-c++ Red Hat:enterprise_linux:9::appstream | All versions | 0:3.7.6-12.el9_0 |
gnutls-c++-debuginfo Red Hat:enterprise_linux:9::appstream | All versions | 0:3.7.6-12.el9_0 |
gnutls-dane Red Hat:enterprise_linux:9::appstream | All versions | 0:3.7.6-12.el9_0 |
gnutls-dane-debuginfo Red Hat:enterprise_linux:9::appstream | All versions | 0:3.7.6-12.el9_0 |
gnutls-debuginfo Red Hat:enterprise_linux:9::appstream | All versions | 0:3.7.6-12.el9_0 |
gnutls-debugsource Red Hat:enterprise_linux:9::appstream | All versions | 0:3.7.6-12.el9_0 |
gnutls-devel Red Hat:enterprise_linux:9::appstream | All versions | 0:3.7.6-12.el9_0 |
gnutls-utils Red Hat:enterprise_linux:9::appstream | All versions | 0:3.7.6-12.el9_0 |
gnutls-utils-debuginfo Red Hat:enterprise_linux:9::appstream | All versions | 0:3.7.6-12.el9_0 |
gnutls Red Hat:enterprise_linux:9::baseos | All versions | 0:3.7.6-12.el9_0 |
gnutls-c++-debuginfo Red Hat:enterprise_linux:9::baseos | All versions | 0:3.7.6-12.el9_0 |
gnutls-dane-debuginfo Red Hat:enterprise_linux:9::baseos | All versions | 0:3.7.6-12.el9_0 |
gnutls-debuginfo Red Hat:enterprise_linux:9::baseos | All versions | 0:3.7.6-12.el9_0 |
gnutls-debugsource Red Hat:enterprise_linux:9::baseos | All versions | 0:3.7.6-12.el9_0 |
gnutls-utils-debuginfo Red Hat:enterprise_linux:9::baseos | All versions | 0:3.7.6-12.el9_0 |
Products include Debian Debian Linux, Fedoraproject Fedora, Gnu Gnutls, Redhat Enterprise Linux.
How do I fix CVE-2022-2509?
Apply the vendor's patch.
Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.
Is CVE-2022-2509 being exploited?
There is no known exploitation of CVE-2022-2509 in the wild and no public exploit code.
Other vulnerabilities in Debian Debian Linux
Sources
Also known as ALPINE-CVE-2022-2509, ALSA-2022:6854, ALSA-2022:7105, AZL-10439, CLSA-2023-1685536090, CLSA-2023-1685536317 and 15 more.