# ALBA-2021:0546: container-tools:2.0 bug fix update > A race condition in podman exec can cause fragility when handling signals, potentially leading to denial of service. - **Severity:** Not scored - **Exploited in the wild:** Not known - **Login needed:** Not needed - **Attackable:** Local or same network only - **Victim action needed:** Not needed - **Fix available:** Yes - **Published:** 16 Feb 2021 ## What is ALBA-2021:0546? ALBA-2021:0546 is a vulnerability in cockpit-podman, published on 16 Feb 2021. It can only be exploited from the same machine or local network, with no action from the victim. ### Official description The container-tools module contains tools for working with containers, notably podman, buildah, skopeo, and runc. Bug Fix(es): * podman exec is fragile in the presence of signals (BZ#1913294) ## Which versions are affected by ALBA-2021:0546? | Package | Ecosystem | Affected | Fixed in | | --- | --- | --- | --- | | `cockpit-podman` | AlmaLinux:8 | All versions | 11-1.module_el8.5.0+108+00865455 | | `cockpit-podman` | AlmaLinux:8 | All versions | 11-1.module_el8.5.0+2635+e4386a39 | | `conmon` | AlmaLinux:8 | All versions | 2:2.0.15-1.module_el8.5.0+108+00865455 | | `conmon` | AlmaLinux:8 | All versions | 2:2.0.15-1.module_el8.5.0+2635+e4386a39 | | `container-selinux` | AlmaLinux:8 | All versions | 2:2.130.0-1.module_el8.5.0+108+00865455 | | `container-selinux` | AlmaLinux:8 | All versions | 2:2.130.0-1.module_el8.5.0+2635+e4386a39 | | `containernetworking-plugins` | AlmaLinux:8 | All versions | 0.8.3-4.module_el8.5.0+108+00865455 | | `containernetworking-plugins` | AlmaLinux:8 | All versions | 0.8.3-4.module_el8.5.0+2635+e4386a39 | | `containers-common` | AlmaLinux:8 | All versions | 1:0.1.41-4.module_el8.5.0+108+00865455 | | `containers-common` | AlmaLinux:8 | All versions | 1:0.1.41-4.module_el8.5.0+2635+e4386a39 | | `crit` | AlmaLinux:8 | All versions | 3.12-9.module_el8.3.0+2044+12421f43 | | `crit` | AlmaLinux:8 | All versions | 3.12-9.module_el8.4.0+2496+12421f43 | | `crit` | AlmaLinux:8 | All versions | 3.12-9.module_el8.5.0+119+9a9ec082 | | `criu` | AlmaLinux:8 | All versions | 3.12-9.module_el8.3.0+2044+12421f43 | | `criu` | AlmaLinux:8 | All versions | 3.12-9.module_el8.4.0+2496+12421f43 | | `criu` | AlmaLinux:8 | All versions | 3.12-9.module_el8.5.0+119+9a9ec082 | | `fuse-overlayfs` | AlmaLinux:8 | All versions | 0.7.8-1.module_el8.5.0+108+00865455 | | `fuse-overlayfs` | AlmaLinux:8 | All versions | 0.7.8-1.module_el8.5.0+2635+e4386a39 | | `python-podman-api` | AlmaLinux:8 | All versions | 1.2.0-0.2.gitd0a45fe.module_el8.5.0+108+00865455 | | `python-podman-api` | AlmaLinux:8 | All versions | 1.2.0-0.2.gitd0a45fe.module_el8.5.0+2635+e4386a39 | | `python3-criu` | AlmaLinux:8 | All versions | 3.12-9.module_el8.3.0+2044+12421f43 | | `python3-criu` | AlmaLinux:8 | All versions | 3.12-9.module_el8.4.0+2496+12421f43 | | `python3-criu` | AlmaLinux:8 | All versions | 3.12-9.module_el8.5.0+119+9a9ec082 | | `skopeo` | AlmaLinux:8 | All versions | 1:0.1.41-4.module_el8.5.0+108+00865455 | | `skopeo` | AlmaLinux:8 | All versions | 1:0.1.41-4.module_el8.5.0+2635+e4386a39 | | `skopeo-tests` | AlmaLinux:8 | All versions | 1:0.1.41-4.module_el8.5.0+108+00865455 | | `skopeo-tests` | AlmaLinux:8 | All versions | 1:0.1.41-4.module_el8.5.0+2635+e4386a39 | | `slirp4netns` | AlmaLinux:8 | All versions | 0.4.2-3.git21fdece.module_el8.5.0+108+00865455 | | `slirp4netns` | AlmaLinux:8 | All versions | 0.4.2-3.git21fdece.module_el8.5.0+2635+e4386a39 | | `toolbox` | AlmaLinux:8 | All versions | 0.0.7-1.module_el8.5.0+108+00865455 | | `toolbox` | AlmaLinux:8 | All versions | 0.0.7-1.module_el8.5.0+2635+e4386a39 | | `udica` | AlmaLinux:8 | All versions | 0.2.1-2.module_el8.5.0+108+00865455 | | `udica` | AlmaLinux:8 | All versions | 0.2.1-2.module_el8.5.0+2635+e4386a39 | ## How do I fix ALBA-2021:0546? Apply the vendor's patch. ## Is ALBA-2021:0546 being exploited? There is no known exploitation of ALBA-2021:0546 in the wild and no public exploit code. ## Fix prompt for AI coding agents ```text Check this codebase for ALBA-2021:0546 and fix it if it is affected. What it is: ALBA-2021:0546 is a vulnerability in cockpit-podman, published on 16 Feb 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 ALBA-2021:0546 in the wild and no public exploit code. Affected product: cockpit-podman. 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/ALBA-2021-0546/ (Markdown: https://insights.sbomify.com/ALBA-2021-0546/index.md) ``` ## Sources - OSV: https://osv.dev/vulnerability/ALBA-2021:0546 --- From sbomify Insights: https://insights.sbomify.com/ALBA-2021-0546/ Summaries are generated and may contain mistakes; the official description above is the record.