CVE-2019-0203 Denial of service in Apache Subversion
High 7.5
Published
Updated
Check this codebase for CVE-2019-0203 and fix it if it is affected.
What it is: CVE-2019-0203 is a high-severity denial of service vulnerability in Apache Subversion, published on 26 Sep 2019. 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-2019-0203 in the wild and no public exploit code.
Affected product: Apache Subversion. 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-2019-0203/ (Markdown: https://insights.sbomify.com/CVE-2019-0203/index.md)
A remote attacker can cause the Apache Subversion server to crash by sending specific protocol commands, disrupting service availability.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2019-0203?
CVE-2019-0203 is a high-severity denial of service vulnerability in Apache Subversion, published on 26 Sep 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
In Apache Subversion versions up to and including 1.9.10, 1.10.4, 1.12.0, Subversion's svnserve server process may exit when a client sends certain sequences of protocol commands. This can lead to disruption for users of the server.
Which versions are affected by CVE-2019-0203?
It affects 1 product.
Linux distribution packages (31)
libserf AlmaLinux:8 | All versions | 1.3.9-9.module_el8.3.0+2053+ac338b6d |
libserf AlmaLinux:8 | All versions | 1.3.9-9.module_el8.4.0+2266+ac338b6d |
libserf AlmaLinux:8 | All versions | 1.3.9-9.module_el8.6.0+2912+eb1cdf5a |
utf8proc AlmaLinux:8 | All versions | 2.1.1-5.module_el8.3.0+2053+ac338b6d |
utf8proc AlmaLinux:8 | All versions | 2.1.1-5.module_el8.4.0+2266+ac338b6d |
utf8proc AlmaLinux:8 | All versions | 2.1.1-5.module_el8.6.0+2912+eb1cdf5a |
libserf Red Hat:enterprise_linux:8::appstream | All versions | 0:1.3.9-9.module+el8.0.0+3900+919b6753 |
libserf-debuginfo Red Hat:enterprise_linux:8::appstream | All versions | 0:1.3.9-9.module+el8.0.0+3900+919b6753 |
libserf-debugsource Red Hat:enterprise_linux:8::appstream | All versions | 0:1.3.9-9.module+el8.0.0+3900+919b6753 |
mod_dav_svn Red Hat:enterprise_linux:8::appstream | All versions | 0:1.10.2-2.module+el8.0.0+3900+919b6753 |
mod_dav_svn-debuginfo Red Hat:enterprise_linux:8::appstream | All versions | 0:1.10.2-2.module+el8.0.0+3900+919b6753 |
subversion Red Hat:enterprise_linux:8::appstream | All versions | 0:1.10.2-2.module+el8.0.0+3900+919b6753 |
subversion-debuginfo Red Hat:enterprise_linux:8::appstream | All versions | 0:1.10.2-2.module+el8.0.0+3900+919b6753 |
subversion-debugsource Red Hat:enterprise_linux:8::appstream | All versions | 0:1.10.2-2.module+el8.0.0+3900+919b6753 |
subversion-devel Red Hat:enterprise_linux:8::appstream | All versions | 0:1.10.2-2.module+el8.0.0+3900+919b6753 |
subversion-devel-debuginfo Red Hat:enterprise_linux:8::appstream | All versions | 0:1.10.2-2.module+el8.0.0+3900+919b6753 |
subversion-gnome Red Hat:enterprise_linux:8::appstream | All versions | 0:1.10.2-2.module+el8.0.0+3900+919b6753 |
subversion-gnome-debuginfo Red Hat:enterprise_linux:8::appstream | All versions | 0:1.10.2-2.module+el8.0.0+3900+919b6753 |
subversion-javahl Red Hat:enterprise_linux:8::appstream | All versions | 0:1.10.2-2.module+el8.0.0+3900+919b6753 |
subversion-libs Red Hat:enterprise_linux:8::appstream | All versions | 0:1.10.2-2.module+el8.0.0+3900+919b6753 |
subversion-libs-debuginfo Red Hat:enterprise_linux:8::appstream | All versions | 0:1.10.2-2.module+el8.0.0+3900+919b6753 |
subversion-perl Red Hat:enterprise_linux:8::appstream | All versions | 0:1.10.2-2.module+el8.0.0+3900+919b6753 |
subversion-perl-debuginfo Red Hat:enterprise_linux:8::appstream | All versions | 0:1.10.2-2.module+el8.0.0+3900+919b6753 |
subversion-tools Red Hat:enterprise_linux:8::appstream | All versions | 0:1.10.2-2.module+el8.0.0+3900+919b6753 |
subversion-tools-debuginfo Red Hat:enterprise_linux:8::appstream | All versions | 0:1.10.2-2.module+el8.0.0+3900+919b6753 |
utf8proc Red Hat:enterprise_linux:8::appstream | All versions | 0:2.1.1-5.module+el8.0.0+3900+919b6753 |
utf8proc-debuginfo Red Hat:enterprise_linux:8::appstream | All versions | 0:2.1.1-5.module+el8.0.0+3900+919b6753 |
utf8proc-debugsource Red Hat:enterprise_linux:8::appstream | All versions | 0:2.1.1-5.module+el8.0.0+3900+919b6753 |
libserf Rocky Linux:8 | All versions | 0:1.3.9-9.module+el8.4.0+407+38733e5a |
libserf Rocky Linux:8 | All versions | 0:1.3.9-9.module+el8.7.0+1065+42200b2e |
utf8proc Rocky Linux:8 | All versions | 0:2.1.1-5.module+el8.4.0+407+38733e5a |
Products include Apache Subversion.
How do I fix CVE-2019-0203?
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-2019-0203 being exploited?
There is no known exploitation of CVE-2019-0203 in the wild and no public exploit code.
Other vulnerabilities in Apache Subversion
- CVE-2017-9800 A maliciously constructed svn+ssh:// URL would cause Subversion clients before 1.8.19, 1.9.x before 1.9.7, and 1.10.0.x through 1.10.0-alpha
- CVE-2013-4246 Denial of service in n/a
- CVE-2015-5259 Integer overflow in n/a
- CVE-2024-45720 Apache Subversion: Command line argument injection on Windows platforms
- CVE-2015-0202 Denial of service in n/a
Sources
Also known as ALPINE-CVE-2019-0203, ALSA-2019:2512, DEBIAN-CVE-2019-0203, GHSA-2wxr-pw8w-8wx5, RHSA-2019:2512, RLSA-2019:2512 and 1 more.