CVE-2023-52425 Denial of service in n/a
High 7.5
Published
Updated
Check this codebase for CVE-2023-52425 and fix it if it is affected.
What it is: CVE-2023-52425 is a high-severity denial of service vulnerability in Libexpat Project Libexpat, published on 4 Feb 2024. 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-2023-52425 in the wild and no public exploit code.
Affected product: Libexpat Project Libexpat. 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-2023-52425/ (Markdown: https://insights.sbomify.com/CVE-2023-52425/index.md)
Attackers can cause resource exhaustion and denial of service in applications using libexpat by sending large tokens requiring multiple buffer fills.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2023-52425?
CVE-2023-52425 is a high-severity denial of service vulnerability in Libexpat Project Libexpat, published on 4 Feb 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
libexpat through 2.5.0 allows a denial of service (resource consumption) because many full reparsings are required in the case of a large token for which multiple buffer fills are needed.
Weakness: CWE-400
Which versions are affected by CVE-2023-52425?
It affects 1 product.
Linux distribution packages (40)
expat AlmaLinux:8 | All versions | 2.2.5-11.el8_9.1 |
expat-devel AlmaLinux:8 | All versions | 2.2.5-11.el8_9.1 |
xmlrpc-c AlmaLinux:8 | All versions | 1.51.0-9.el8_10 |
xmlrpc-c-c++ AlmaLinux:8 | All versions | 1.51.0-9.el8_10 |
xmlrpc-c-client AlmaLinux:8 | All versions | 1.51.0-9.el8_10 |
xmlrpc-c-client++ AlmaLinux:8 | All versions | 1.51.0-9.el8_10 |
xmlrpc-c-devel AlmaLinux:8 | All versions | 1.51.0-9.el8_10 |
expat Red Hat:enterprise_linux:8::baseos | All versions | 0:2.2.5-11.el8_9.1 |
expat-debuginfo Red Hat:enterprise_linux:8::baseos | All versions | 0:2.2.5-11.el8_9.1 |
expat-debugsource Red Hat:enterprise_linux:8::baseos | All versions | 0:2.2.5-11.el8_9.1 |
expat-devel Red Hat:enterprise_linux:8::baseos | All versions | 0:2.2.5-11.el8_9.1 |
xmlrpc-c Red Hat:enterprise_linux:8::baseos | All versions | 0:1.51.0-9.el8_10 |
xmlrpc-c-apps-debuginfo Red Hat:enterprise_linux:8::baseos | All versions | 0:1.51.0-9.el8_10 |
xmlrpc-c-c++-debuginfo Red Hat:enterprise_linux:8::baseos | All versions | 0:1.51.0-9.el8_10 |
xmlrpc-c-client Red Hat:enterprise_linux:8::baseos | All versions | 0:1.51.0-9.el8_10 |
xmlrpc-c-client++-debuginfo Red Hat:enterprise_linux:8::baseos | All versions | 0:1.51.0-9.el8_10 |
xmlrpc-c-client-debuginfo Red Hat:enterprise_linux:8::baseos | All versions | 0:1.51.0-9.el8_10 |
xmlrpc-c-debuginfo Red Hat:enterprise_linux:8::baseos | All versions | 0:1.51.0-9.el8_10 |
xmlrpc-c-debugsource Red Hat:enterprise_linux:8::baseos | All versions | 0:1.51.0-9.el8_10 |
xmlrpc-c-apps-debuginfo Red Hat:enterprise_linux:8::crb | All versions | 0:1.51.0-9.el8_10 |
xmlrpc-c-c++ Red Hat:enterprise_linux:8::crb | All versions | 0:1.51.0-9.el8_10 |
xmlrpc-c-c++-debuginfo Red Hat:enterprise_linux:8::crb | All versions | 0:1.51.0-9.el8_10 |
xmlrpc-c-client++ Red Hat:enterprise_linux:8::crb | All versions | 0:1.51.0-9.el8_10 |
xmlrpc-c-client++-debuginfo Red Hat:enterprise_linux:8::crb | All versions | 0:1.51.0-9.el8_10 |
xmlrpc-c-client-debuginfo Red Hat:enterprise_linux:8::crb | All versions | 0:1.51.0-9.el8_10 |
xmlrpc-c-debuginfo Red Hat:enterprise_linux:8::crb | All versions | 0:1.51.0-9.el8_10 |
xmlrpc-c-debugsource Red Hat:enterprise_linux:8::crb | All versions | 0:1.51.0-9.el8_10 |
xmlrpc-c-devel Red Hat:enterprise_linux:8::crb | All versions | 0:1.51.0-9.el8_10 |
expat Red Hat:rhel_eus:8.6::baseos | All versions | 0:2.2.5-8.el8_6.5 |
expat-debuginfo Red Hat:rhel_eus:8.6::baseos | All versions | 0:2.2.5-8.el8_6.5 |
expat-debugsource Red Hat:rhel_eus:8.6::baseos | All versions | 0:2.2.5-8.el8_6.5 |
expat-devel Red Hat:rhel_eus:8.6::baseos | All versions | 0:2.2.5-8.el8_6.5 |
expat Red Hat:rhel_eus:8.8::baseos | All versions | 0:2.2.5-11.el8_8.2 |
expat-debuginfo Red Hat:rhel_eus:8.8::baseos | All versions | 0:2.2.5-11.el8_8.2 |
expat-debugsource Red Hat:rhel_eus:8.8::baseos | All versions | 0:2.2.5-11.el8_8.2 |
expat-devel Red Hat:rhel_eus:8.8::baseos | All versions | 0:2.2.5-11.el8_8.2 |
expat Rocky Linux:8 | All versions | 0:2.2.5-11.el8_9.1 |
xmlrpc-c Rocky Linux:8 | All versions | 0:1.51.0-9.el8_10 |
python3 SUSE:Linux Enterprise Module for Web and Scripting 12 | All versions | 3.4.10-25.127.1 |
python3-base SUSE:Linux Enterprise Module for Web and Scripting 12 | All versions | 3.4.10-25.127.1 |
Products include Libexpat Project Libexpat.
How do I fix CVE-2023-52425?
Upgrade to a fixed version.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2023-52425 being exploited?
There is no known exploitation of CVE-2023-52425 in the wild and no public exploit code.
Other vulnerabilities in Libexpat Project Libexpat
Sources
Also known as ALPINE-CVE-2023-52425, ALSA-2024:1615, ALSA-2024:4259, AZL-34207, AZL-34683, BELL-CVE-2023-52425 and 25 more.