CVE-2022-43680 Use after free in n/a
High 7.5
Published
Updated
Check this codebase for CVE-2022-43680 and fix it if it is affected.
What it is: CVE-2022-43680 is a high-severity use after free vulnerability in Debian Debian Linux, published on 24 Oct 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-2022-43680 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-2022-43680/ (Markdown: https://insights.sbomify.com/CVE-2022-43680/index.md)
A use-after-free vulnerability in libexpat allows attackers to cause denial of service or potentially execute code via crafted XML input.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2022-43680?
CVE-2022-43680 is a high-severity use after free vulnerability in Debian Debian Linux, published on 24 Oct 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
In libexpat through 2.4.9, there is a use-after free caused by overeager destruction of a shared DTD in XML_ExternalEntityParserCreate in out-of-memory situations.
Weakness: CWE-416
Which versions are affected by CVE-2022-43680?
It affects 12 products.
Linux distribution packages (40)
expat AlmaLinux:8 | All versions | 2.2.5-10.el8_7.1 |
expat-devel AlmaLinux:8 | All versions | 2.2.5-10.el8_7.1 |
expat AlmaLinux:9 | All versions | 2.4.9-1.el9_1.1 |
expat-devel AlmaLinux:9 | All versions | 2.4.9-1.el9_1.1 |
expat Red Hat:enterprise_linux:8::baseos | All versions | 0:2.2.5-10.el8_7.1 |
expat-debuginfo Red Hat:enterprise_linux:8::baseos | All versions | 0:2.2.5-10.el8_7.1 |
expat-debugsource Red Hat:enterprise_linux:8::baseos | All versions | 0:2.2.5-10.el8_7.1 |
expat-devel Red Hat:enterprise_linux:8::baseos | All versions | 0:2.2.5-10.el8_7.1 |
expat-debuginfo Red Hat:enterprise_linux:9::appstream | All versions | 0:2.4.9-1.el9_1.1 |
expat-debugsource Red Hat:enterprise_linux:9::appstream | All versions | 0:2.4.9-1.el9_1.1 |
expat-devel Red Hat:enterprise_linux:9::appstream | All versions | 0:2.4.9-1.el9_1.1 |
expat Red Hat:enterprise_linux:9::baseos | All versions | 0:2.4.9-1.el9_1.1 |
expat-debuginfo Red Hat:enterprise_linux:9::baseos | All versions | 0:2.4.9-1.el9_1.1 |
expat-debugsource Red Hat:enterprise_linux:9::baseos | All versions | 0:2.4.9-1.el9_1.1 |
expat Red Hat:rhel_eus:8.6::baseos | All versions | 0:2.2.5-8.el8_6.4 |
expat-debuginfo Red Hat:rhel_eus:8.6::baseos | All versions | 0:2.2.5-8.el8_6.4 |
expat-debugsource Red Hat:rhel_eus:8.6::baseos | All versions | 0:2.2.5-8.el8_6.4 |
expat-devel Red Hat:rhel_eus:8.6::baseos | All versions | 0:2.2.5-8.el8_6.4 |
expat Rocky Linux:8 | All versions | 0:2.2.5-10.el8_7.1 |
expat Rocky Linux:9 | All versions | 0:2.4.9-1.el9_1.1 |
expat SUSE:Enterprise Storage 6 | All versions | 2.2.5-150000.3.25.1 |
expat SUSE:Enterprise Storage 7 | All versions | 2.2.5-150000.3.25.1 |
expat SUSE:Linux Enterprise High Performance Computing 15 SP1-ESPOS | All versions | 2.2.5-150000.3.25.1 |
expat SUSE:Linux Enterprise High Performance Computing 15 SP1-LTSS | All versions | 2.2.5-150000.3.25.1 |
expat SUSE:Linux Enterprise High Performance Computing 15 SP2-ESPOS | All versions | 2.2.5-150000.3.25.1 |
expat SUSE:Linux Enterprise High Performance Computing 15 SP2-LTSS | All versions | 2.2.5-150000.3.25.1 |
expat SUSE:Linux Enterprise High Performance Computing 15-ESPOS | All versions | 2.2.5-150000.3.25.1 |
expat SUSE:Linux Enterprise High Performance Computing 15-LTSS | All versions | 2.2.5-150000.3.25.1 |
expat SUSE:Linux Enterprise Micro 5.1 | All versions | 2.2.5-150000.3.25.1 |
expat SUSE:Linux Enterprise Micro 5.2 | All versions | 2.2.5-150000.3.25.1 |
expat SUSE:Linux Enterprise Micro 5.3 | All versions | 2.4.4-150400.3.12.1 |
expat SUSE:Linux Enterprise Module for Basesystem 15 SP3 | All versions | 2.2.5-150000.3.25.1 |
expat SUSE:Linux Enterprise Module for Basesystem 15 SP4 | All versions | 2.4.4-150400.3.12.1 |
expat SUSE:Linux Enterprise Server 12 SP2-BCL | All versions | 2.1.0-21.28.1 |
expat SUSE:Linux Enterprise Server 12 SP3-BCL | All versions | 2.1.0-21.28.1 |
expat SUSE:Linux Enterprise Server 12 SP4-LTSS | All versions | 2.1.0-21.28.1 |
expat SUSE:Linux Enterprise Server 12 SP5 | All versions | 2.1.0-21.28.1 |
expat SUSE:Linux Enterprise Server 15 SP1-BCL | All versions | 2.2.5-150000.3.25.1 |
expat SUSE:Linux Enterprise Server 15 SP1-LTSS | All versions | 2.2.5-150000.3.25.1 |
expat SUSE:Linux Enterprise Server 15 SP2-BCL | All versions | 2.2.5-150000.3.25.1 |
Products include Debian Debian Linux, Fedoraproject Fedora, Libexpat Project Libexpat, Netapp Active Iq Unified Manager, Netapp H300s Firmware, Netapp H410c Firmware and 6 more.
How do I fix CVE-2022-43680?
Upgrade to a fixed version.
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-2022-43680 being exploited?
There is no known exploitation of CVE-2022-43680 in the wild and no public exploit code.
Public exploit code: 2 proofs of concept on GitHub.
Other vulnerabilities in Debian Debian Linux
Sources
Also known as A-255449293, ALPINE-CVE-2022-43680, ALSA-2023:0103, ALSA-2023:0337, ASB-A-255449293, AZL-11316 and 24 more.