SUSE-SU-2019:2307-1 Security update for util-linux and shadow
Not scored
Published
Check this codebase for SUSE-SU-2019:2307-1 and fix it if it is affected.
What it is: SUSE-SU-2019:2307-1 is a vulnerability in shadow, published on 5 Sep 2019. 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-2019:2307-1 in the wild and no public exploit code.
Affected product: shadow. 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-2019-2307-1/ (Markdown: https://insights.sbomify.com/SUSE-SU-2019-2307-1/index.md)
Local attackers can exploit PATH handling flaws in su and shadow utilities to escalate privileges on SUSE Linux systems.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is SUSE-SU-2019:2307-1?
SUSE-SU-2019:2307-1 is a vulnerability in shadow, published on 5 Sep 2019. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
This update for util-linux and shadow fixes the following issues:
util-linux:
- Fixed an issue where PATH settings in /etc/default/su being ignored (bsc#1121197)
- Prevent outdated pam files (bsc#1082293).
- De-duplicate fstrim -A properly (bsc#1127701).
- Do not trim read-only volumes (bsc#1106214).
- Integrate pam_keyinit pam module to login (bsc#1081947).
- Perform one-time reset of /etc/default/su (bsc#1121197).
- Fix problems in reading of login.defs values (bsc#1121197)
- libmount: To prevent incorrect behavior, recognize more pseudofs and netfs (bsc#1122417).
- raw.service: Add RemainAfterExit=yes (bsc#1135534).
- agetty: Return previous response of agetty for special characters (bsc#1085196, bsc#1125886)
- libmount: print a blacklist hint for 'unknown filesystem type' (jsc#SUSE-4085, fate#326832)
- Fix /etc/default/su comments and create /etc/default/runuser (bsc#1121197).
shadow:
- Fixed an issue where PATH settings in /etc/default/su being ignored (bsc#1121197)
- Fix segfault in useradd during setting password inactivity period. (bsc#1141113)
- Hardening for su wrappers (bsc#353876)
Which versions are affected by SUSE-SU-2019:2307-1?
Linux distribution packages (4)
shadow SUSE:Linux Enterprise Module for Basesystem 15 SP1 | All versions | 4.6-3.5.6 |
util-linux SUSE:Linux Enterprise Module for Basesystem 15 SP1 | All versions | 2.33.1-4.5.1 |
util-linux-systemd SUSE:Linux Enterprise Module for Basesystem 15 SP1 | All versions | 2.33.1-4.5.1 |
util-linux-systemd SUSE:Linux Enterprise Module for Server Applications 15 SP1 | All versions | 2.33.1-4.5.1 |
How do I fix SUSE-SU-2019:2307-1?
Apply the vendor's patch.
Is SUSE-SU-2019:2307-1 being exploited?
There is no known exploitation of SUSE-SU-2019:2307-1 in the wild and no public exploit code.