SUSE-SU-2021:2457-1 Security update for wireshark
Not scored
Published
Check this codebase for SUSE-SU-2021:2457-1 and fix it if it is affected.
What it is: SUSE-SU-2021:2457-1 is a denial of service vulnerability in wireshark, published on 22 Jul 2021. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of SUSE-SU-2021:2457-1 in the wild and no public exploit code.
Affected product: wireshark. 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-2021-2457-1/ (Markdown: https://insights.sbomify.com/SUSE-SU-2021-2457-1/index.md)
An attacker can cause a denial of service in Wireshark via a crafted DVB-S2-BB packet, requiring user interaction to open the capture.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is SUSE-SU-2021:2457-1?
SUSE-SU-2021:2457-1 is a denial of service vulnerability in wireshark, published on 22 Jul 2021. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
This update for wireshark fixes the following issues:
Update wireshark to 3.4.6.
Including a fix for:
- DVB-S2-BB dissector infinite loop (bsc#1186790).
Which versions are affected by SUSE-SU-2021:2457-1?
Linux distribution packages (4)
wireshark SUSE:Linux Enterprise Module for Basesystem 15 SP2 | All versions | 3.4.6-3.56.1 |
wireshark SUSE:Linux Enterprise Module for Basesystem 15 SP3 | All versions | 3.4.6-3.56.1 |
wireshark SUSE:Linux Enterprise Module for Desktop Applications 15 SP2 | All versions | 3.4.6-3.56.1 |
wireshark SUSE:Linux Enterprise Module for Desktop Applications 15 SP3 | All versions | 3.4.6-3.56.1 |
How do I fix SUSE-SU-2021:2457-1?
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-2021:2457-1 being exploited?
There is no known exploitation of SUSE-SU-2021:2457-1 in the wild and no public exploit code.