SUSE-SU-2021:2152-1 Security update for ovmf
Not scored
Published
Check this codebase for SUSE-SU-2021:2152-1 and fix it if it is affected.
What it is: SUSE-SU-2021:2152-1 is a memory corruption vulnerability in ovmf, published on 24 Jun 2021. 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-2021:2152-1 in the wild and no public exploit code.
Affected product: ovmf. 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-2021-2152-1/ (Markdown: https://insights.sbomify.com/SUSE-SU-2021-2152-1/index.md)
A buffer overflow in the iSCSI driver of OVMF firmware allows attackers to execute arbitrary code or escalate privileges.
- 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-2021:2152-1?
SUSE-SU-2021:2152-1 is a memory corruption vulnerability in ovmf, published on 24 Jun 2021. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
This update for ovmf fixes the following issues:
- Fixed a possible buffer overflow in IScsiDxe (bsc#1186151)
Which versions are affected by SUSE-SU-2021:2152-1?
Linux distribution packages (6)
ovmf SUSE:Linux Enterprise Server 12 SP4-LTSS | All versions | 2017+git1510945757.b2662641d5-3.38.1 |
ovmf SUSE:Linux Enterprise Server 12 SP5 | All versions | 2017+git1510945757.b2662641d5-3.38.1 |
ovmf SUSE:Linux Enterprise Server for SAP Applications 12 SP4 | All versions | 2017+git1510945757.b2662641d5-3.38.1 |
ovmf SUSE:Linux Enterprise Server for SAP Applications 12 SP5 | All versions | 2017+git1510945757.b2662641d5-3.38.1 |
ovmf SUSE:OpenStack Cloud 9 | All versions | 2017+git1510945757.b2662641d5-3.38.1 |
ovmf SUSE:OpenStack Cloud Crowbar 9 | All versions | 2017+git1510945757.b2662641d5-3.38.1 |
How do I fix SUSE-SU-2021:2152-1?
Apply the vendor's patch.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is SUSE-SU-2021:2152-1 being exploited?
There is no known exploitation of SUSE-SU-2021:2152-1 in the wild and no public exploit code.