CVE-2022-40674 Use after free in n/a
High 8.1
Published
Updated
Check this codebase for CVE-2022-40674 and fix it if it is affected.
What it is: CVE-2022-40674 is a high-severity use after free vulnerability in Debian Debian Linux, published on 14 Sep 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-2022-40674 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-2022-40674/ (Markdown: https://insights.sbomify.com/CVE-2022-40674/index.md)
A use-after-free vulnerability in libexpat allows attackers to execute arbitrary code or cause denial of service 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-2022-40674?
CVE-2022-40674 is a high-severity use after free vulnerability in Debian Debian Linux, published on 14 Sep 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
libexpat before 2.4.9 has a use-after-free in the doContent function in xmlparse.c.
Weakness: CWE-416
Which versions are affected by CVE-2022-40674?
It affects 3 products.
Linux distribution packages (40)
expat AlmaLinux:8 | All versions | 2.2.5-8.el8_6.3 |
expat-devel AlmaLinux:8 | All versions | 2.2.5-8.el8_6.3 |
firefox AlmaLinux:8 | All versions | 102.3.0-7.el8_6.alma |
mingw32-expat AlmaLinux:8 | All versions | 2.4.8-2.el8 |
mingw64-expat AlmaLinux:8 | All versions | 2.4.8-2.el8 |
thunderbird AlmaLinux:8 | All versions | 102.3.0-4.el8_6.alma |
expat AlmaLinux:9 | All versions | 2.2.10-12.el9_0.3 |
expat-devel AlmaLinux:9 | All versions | 2.2.10-12.el9_0.3 |
firefox AlmaLinux:9 | All versions | 102.3.0-7.el9_0.alma |
thunderbird AlmaLinux:9 | All versions | 102.3.0-4.el9_0.alma.plus |
expat Red Hat:enterprise_linux:7::client | All versions | 0:2.1.0-15.el7_9 |
expat-debuginfo Red Hat:enterprise_linux:7::client | All versions | 0:2.1.0-15.el7_9 |
expat-devel Red Hat:enterprise_linux:7::client | All versions | 0:2.1.0-15.el7_9 |
expat-static Red Hat:enterprise_linux:7::client | All versions | 0:2.1.0-15.el7_9 |
firefox Red Hat:enterprise_linux:7::client | All versions | 0:102.3.0-7.el7_9 |
firefox-debuginfo Red Hat:enterprise_linux:7::client | All versions | 0:102.3.0-7.el7_9 |
thunderbird Red Hat:enterprise_linux:7::client | All versions | 0:102.3.0-4.el7_9 |
thunderbird-debuginfo Red Hat:enterprise_linux:7::client | All versions | 0:102.3.0-4.el7_9 |
expat-debuginfo Red Hat:enterprise_linux:7::computenode | All versions | 0:2.1.0-15.el7_9 |
expat-devel Red Hat:enterprise_linux:7::computenode | All versions | 0:2.1.0-15.el7_9 |
expat-static Red Hat:enterprise_linux:7::computenode | All versions | 0:2.1.0-15.el7_9 |
expat Red Hat:enterprise_linux:7::server | All versions | 0:2.1.0-15.el7_9 |
expat-debuginfo Red Hat:enterprise_linux:7::server | All versions | 0:2.1.0-15.el7_9 |
expat-devel Red Hat:enterprise_linux:7::server | All versions | 0:2.1.0-15.el7_9 |
expat-static Red Hat:enterprise_linux:7::server | All versions | 0:2.1.0-15.el7_9 |
firefox Red Hat:enterprise_linux:7::server | All versions | 0:102.3.0-7.el7_9 |
firefox-debuginfo Red Hat:enterprise_linux:7::server | All versions | 0:102.3.0-7.el7_9 |
thunderbird Red Hat:enterprise_linux:7::server | All versions | 0:102.3.0-4.el7_9 |
thunderbird-debuginfo Red Hat:enterprise_linux:7::server | All versions | 0:102.3.0-4.el7_9 |
expat Red Hat:enterprise_linux:7::workstation | All versions | 0:2.1.0-15.el7_9 |
expat-debuginfo Red Hat:enterprise_linux:7::workstation | All versions | 0:2.1.0-15.el7_9 |
expat-devel Red Hat:enterprise_linux:7::workstation | All versions | 0:2.1.0-15.el7_9 |
expat-static Red Hat:enterprise_linux:7::workstation | All versions | 0:2.1.0-15.el7_9 |
firefox Red Hat:enterprise_linux:7::workstation | All versions | 0:102.3.0-7.el7_9 |
firefox-debuginfo Red Hat:enterprise_linux:7::workstation | All versions | 0:102.3.0-7.el7_9 |
thunderbird Red Hat:enterprise_linux:7::workstation | All versions | 0:102.3.0-4.el7_9 |
thunderbird-debuginfo Red Hat:enterprise_linux:7::workstation | All versions | 0:102.3.0-4.el7_9 |
firefox Red Hat:enterprise_linux:8::appstream | All versions | 0:102.3.0-7.el8_6 |
firefox-debuginfo Red Hat:enterprise_linux:8::appstream | All versions | 0:102.3.0-7.el8_6 |
firefox-debugsource Red Hat:enterprise_linux:8::appstream | All versions | 0:102.3.0-7.el8_6 |
Products include Debian Debian Linux, Fedoraproject Fedora, Libexpat Project Libexpat.
How do I fix CVE-2022-40674?
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-2022-40674 being exploited?
There is no known exploitation of CVE-2022-40674 in the wild and no public exploit code.
Other vulnerabilities in Debian Debian Linux
Sources
Also known as ALPINE-CVE-2022-40674, ALSA-2022:6838, ALSA-2022:6878, ALSA-2022:7020, ALSA-2022:7023, ALSA-2022:7024 and 51 more.