SUSE-SU-2023:2988-1 Security update for conmon
Not scored
Published
Check this codebase for SUSE-SU-2023:2988-1 and fix it if it is affected.
What it is: SUSE-SU-2023:2988-1 is a denial of service vulnerability in conmon, published on 26 Jul 2023. It can only be exploited from the same machine or local network, with no action from the victim.
Exploitation: There is no known exploitation of SUSE-SU-2023:2988-1 in the wild and no public exploit code.
Affected product: conmon. 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/SUSE-SU-2023-2988-1/ (Markdown: https://insights.sbomify.com/SUSE-SU-2023-2988-1/index.md)
An attacker can cause a denial of service in conmon by exploiting OOM handling issues and leaking symbolic links.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is SUSE-SU-2023:2988-1?
SUSE-SU-2023:2988-1 is a denial of service vulnerability in conmon, published on 26 Jul 2023. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
This update for conmon fixes the following issues:
conmon was updated to version 2.1.7:
- Bumped go version to 1.19 (bsc#1209307).
Bugfixes:
- Fixed leaking symbolic links in the opt_socket_path directory
- Fixed oom handling issues (bsc#1208737).
- Fixed OOM watcher for cgroupv2
oom_killevents
Which versions are affected by SUSE-SU-2023:2988-1?
Linux distribution packages (2)
conmon SUSE:Linux Enterprise Module for Containers 15 SP5 | All versions | 2.1.7-150500.9.3.1 |
conmon openSUSE:Leap 15.5 | All versions | 2.1.7-150500.9.3.1 |
How do I fix SUSE-SU-2023:2988-1?
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 SUSE-SU-2023:2988-1 being exploited?
There is no known exploitation of SUSE-SU-2023:2988-1 in the wild and no public exploit code.