CVE-2024-34459 Memory corruption in n/a
High 7.5
Published
Updated
Check this codebase for CVE-2024-34459 and fix it if it is affected.
What it is: CVE-2024-34459 is a high-severity memory corruption vulnerability in Xmlsoft Libxml2, published on 13 May 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2024-34459 exists.
Affected product: Xmlsoft Libxml2. 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-2024-34459/ (Markdown: https://insights.sbomify.com/CVE-2024-34459/index.md)
A buffer over-read in libxml2's xmllint tool can cause a crash when formatting HTML error messages, requiring an upgrade to patched versions.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2024-34459?
CVE-2024-34459 is a high-severity memory corruption vulnerability in Xmlsoft Libxml2, published on 13 May 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
An issue was discovered in xmllint (from libxml2) before 2.11.8 and 2.12.x before 2.12.7. Formatting error messages with xmllint --htmlout can result in a buffer over-read in xmlHTMLPrintFileContext in xmllint.c.
Weakness: CWE-122
Which versions are affected by CVE-2024-34459?
It affects 1 product.
Linux distribution packages (40)
libxml2 AlmaLinux:10 | All versions | 2.12.5-10.el10_2.1 |
libxml2-devel AlmaLinux:10 | All versions | 2.12.5-10.el10_2.1 |
libxml2-static AlmaLinux:10 | All versions | 2.12.5-10.el10_2.1 |
python3-libxml2 AlmaLinux:10 | All versions | 2.12.5-10.el10_2.1 |
libxml2 AlmaLinux:8 | All versions | 2.9.7-21.el8_10.5 |
libxml2-devel AlmaLinux:8 | All versions | 2.9.7-21.el8_10.5 |
python3-libxml2 AlmaLinux:8 | All versions | 2.9.7-21.el8_10.5 |
libxml2 AlmaLinux:9 | All versions | 2.9.13-14.el9_8.1 |
libxml2-devel AlmaLinux:9 | All versions | 2.9.13-14.el9_8.1 |
python3-libxml2 AlmaLinux:9 | All versions | 2.9.13-14.el9_8.1 |
libxml2 Red Hat:enterprise_linux:10.2 | All versions | 0:2.12.5-10.el10_2.1 |
libxml2-debuginfo Red Hat:enterprise_linux:10.2 | All versions | 0:2.12.5-10.el10_2.1 |
libxml2-debugsource Red Hat:enterprise_linux:10.2 | All versions | 0:2.12.5-10.el10_2.1 |
libxml2-devel Red Hat:enterprise_linux:10.2 | All versions | 0:2.12.5-10.el10_2.1 |
libxml2-static Red Hat:enterprise_linux:10.2 | All versions | 0:2.12.5-10.el10_2.1 |
python3-libxml2 Red Hat:enterprise_linux:10.2 | All versions | 0:2.12.5-10.el10_2.1 |
python3-libxml2-debuginfo Red Hat:enterprise_linux:10.2 | All versions | 0:2.12.5-10.el10_2.1 |
libxml2-debuginfo Red Hat:enterprise_linux:8::appstream | All versions | 0:2.9.7-21.el8_10.5 |
libxml2-debugsource Red Hat:enterprise_linux:8::appstream | All versions | 0:2.9.7-21.el8_10.5 |
libxml2-devel Red Hat:enterprise_linux:8::appstream | All versions | 0:2.9.7-21.el8_10.5 |
python3-libxml2-debuginfo Red Hat:enterprise_linux:8::appstream | All versions | 0:2.9.7-21.el8_10.5 |
libxml2 Red Hat:enterprise_linux:8::baseos | All versions | 0:2.9.7-21.el8_10.5 |
libxml2-debuginfo Red Hat:enterprise_linux:8::baseos | All versions | 0:2.9.7-21.el8_10.5 |
libxml2-debugsource Red Hat:enterprise_linux:8::baseos | All versions | 0:2.9.7-21.el8_10.5 |
python3-libxml2 Red Hat:enterprise_linux:8::baseos | All versions | 0:2.9.7-21.el8_10.5 |
python3-libxml2-debuginfo Red Hat:enterprise_linux:8::baseos | All versions | 0:2.9.7-21.el8_10.5 |
libxml2-debuginfo Red Hat:enterprise_linux:9::appstream | All versions | 0:2.9.13-14.el9_8.1 |
libxml2-debugsource Red Hat:enterprise_linux:9::appstream | All versions | 0:2.9.13-14.el9_8.1 |
libxml2-devel Red Hat:enterprise_linux:9::appstream | All versions | 0:2.9.13-14.el9_8.1 |
python3-libxml2-debuginfo Red Hat:enterprise_linux:9::appstream | All versions | 0:2.9.13-14.el9_8.1 |
libxml2 Red Hat:enterprise_linux:9::baseos | All versions | 0:2.9.13-14.el9_8.1 |
libxml2-debuginfo Red Hat:enterprise_linux:9::baseos | All versions | 0:2.9.13-14.el9_8.1 |
libxml2-debugsource Red Hat:enterprise_linux:9::baseos | All versions | 0:2.9.13-14.el9_8.1 |
python3-libxml2 Red Hat:enterprise_linux:9::baseos | All versions | 0:2.9.13-14.el9_8.1 |
python3-libxml2-debuginfo Red Hat:enterprise_linux:9::baseos | All versions | 0:2.9.13-14.el9_8.1 |
libxml2 Red Hat:enterprise_linux_eus:10.0 | All versions | 0:2.12.5-9.el10_0.1 |
libxml2-debuginfo Red Hat:enterprise_linux_eus:10.0 | All versions | 0:2.12.5-9.el10_0.1 |
libxml2-debugsource Red Hat:enterprise_linux_eus:10.0 | All versions | 0:2.12.5-9.el10_0.1 |
libxml2-devel Red Hat:enterprise_linux_eus:10.0 | All versions | 0:2.12.5-9.el10_0.1 |
libxml2-static Red Hat:enterprise_linux_eus:10.0 | All versions | 0:2.12.5-9.el10_0.1 |
Products include Xmlsoft Libxml2.
How do I fix CVE-2024-34459?
Upgrade to a fixed version.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2024-34459 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2024-34459 exists.
Other vulnerabilities in Xmlsoft Libxml2
Sources
Also known as ALPINE-CVE-2024-34459, ALSA-2026:26354, ALSA-2026:28234, ALSA-2026:28254, AZL-42019, AZL-42027 and 27 more.