CVE-2021-38185 Integer overflow in n/a
High 7.8
Published
Updated
Check this codebase for CVE-2021-38185 and fix it if it is affected.
What it is: CVE-2021-38185 is a high-severity vulnerability in n/a, published on 7 Aug 2021. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2021-38185 in the wild and no public exploit code.
Affected product: n/a. 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/CVE-2021-38185/ (Markdown: https://insights.sbomify.com/CVE-2021-38185/index.md)
Attackers can execute arbitrary code via a crafted pattern file due to an integer overflow in GNU cpio, affecting Linux distributions.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2021-38185?
CVE-2021-38185 is a high-severity vulnerability in n/a, published on 7 Aug 2021. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Official description
GNU cpio through 2.13 allows attackers to execute arbitrary code via a crafted pattern file, because of a dstring.c ds_fgetstr integer overflow that triggers an out-of-bounds heap write. NOTE: it is unclear whether there are common cases where the pattern file, associated with the -E option, is untrusted data.
Weakness: CWE-190
Which versions are affected by CVE-2021-38185?
It affects 1 product.
Linux distribution packages (40)
cpio AlmaLinux:8 | All versions | 2.12-11.el8 |
cpio Red Hat:enterprise_linux:8::baseos | All versions | 0:2.12-11.el8 |
cpio-debuginfo Red Hat:enterprise_linux:8::baseos | All versions | 0:2.12-11.el8 |
cpio-debugsource Red Hat:enterprise_linux:8::baseos | All versions | 0:2.12-11.el8 |
cpio Rocky Linux:8 | All versions | 0:2.12-11.el8 |
cpio SUSE:Enterprise Storage 6 | All versions | 2.12-3.9.1 |
cpio SUSE:HPE Helion OpenStack 8 | All versions | 2.11-36.12.1 |
cpio SUSE:HPE Helion OpenStack 8 | All versions | 2.11-36.15.1 |
cpio SUSE:HPE Helion OpenStack 8 | All versions | 2.11-36.9.1 |
cpio SUSE:Linux Enterprise High Performance Computing 15 SP1-ESPOS | All versions | 2.12-3.9.1 |
cpio SUSE:Linux Enterprise High Performance Computing 15 SP1-LTSS | All versions | 2.12-3.9.1 |
cpio SUSE:Linux Enterprise High Performance Computing 15-ESPOS | All versions | 2.12-3.9.1 |
cpio SUSE:Linux Enterprise High Performance Computing 15-LTSS | All versions | 2.12-3.9.1 |
cpio SUSE:Linux Enterprise Micro 5.0 | All versions | 2.12-3.9.1 |
cpio SUSE:Linux Enterprise Module for Basesystem 15 SP2 | All versions | 2.12-3.9.1 |
cpio SUSE:Linux Enterprise Module for Basesystem 15 SP3 | All versions | 2.12-3.9.1 |
cpio SUSE:Linux Enterprise Point of Sale 11 SP3 | All versions | 2.9-75.81.14.1 |
cpio SUSE:Linux Enterprise Point of Sale 11 SP3 | All versions | 2.9-75.81.8.1 |
cpio SUSE:Linux Enterprise Server 11 SP4-LTSS | All versions | 2.9-75.81.14.1 |
cpio SUSE:Linux Enterprise Server 11 SP4-LTSS | All versions | 2.9-75.81.8.1 |
cpio SUSE:Linux Enterprise Server 12 SP2-BCL | All versions | 2.11-36.12.1 |
cpio SUSE:Linux Enterprise Server 12 SP2-BCL | All versions | 2.11-36.15.1 |
cpio SUSE:Linux Enterprise Server 12 SP2-BCL | All versions | 2.11-36.9.1 |
cpio SUSE:Linux Enterprise Server 12 SP3-BCL | All versions | 2.11-36.12.1 |
cpio SUSE:Linux Enterprise Server 12 SP3-BCL | All versions | 2.11-36.15.1 |
cpio SUSE:Linux Enterprise Server 12 SP3-BCL | All versions | 2.11-36.9.1 |
cpio SUSE:Linux Enterprise Server 12 SP3-LTSS | All versions | 2.11-36.12.1 |
cpio SUSE:Linux Enterprise Server 12 SP3-LTSS | All versions | 2.11-36.15.1 |
cpio SUSE:Linux Enterprise Server 12 SP3-LTSS | All versions | 2.11-36.9.1 |
cpio SUSE:Linux Enterprise Server 12 SP4-LTSS | All versions | 2.11-36.12.1 |
cpio SUSE:Linux Enterprise Server 12 SP4-LTSS | All versions | 2.11-36.15.1 |
cpio SUSE:Linux Enterprise Server 12 SP4-LTSS | All versions | 2.11-36.9.1 |
cpio SUSE:Linux Enterprise Server 12 SP5 | All versions | 2.11-36.12.1 |
cpio SUSE:Linux Enterprise Server 12 SP5 | All versions | 2.11-36.15.1 |
cpio SUSE:Linux Enterprise Server 12 SP5 | All versions | 2.11-36.9.1 |
cpio SUSE:Linux Enterprise Server 15 SP1-BCL | All versions | 2.12-3.9.1 |
cpio SUSE:Linux Enterprise Server 15 SP1-LTSS | All versions | 2.12-3.9.1 |
cpio SUSE:Linux Enterprise Server 15-LTSS | All versions | 2.12-3.9.1 |
cpio SUSE:Linux Enterprise Server for SAP Applications 12 SP3 | All versions | 2.11-36.12.1 |
cpio SUSE:Linux Enterprise Server for SAP Applications 12 SP3 | All versions | 2.11-36.15.1 |
Products include Gnu Cpio.
How do I fix CVE-2021-38185?
Apply the vendor's patch.
Is CVE-2021-38185 being exploited?
There is no known exploitation of CVE-2021-38185 in the wild and no public exploit code.
Public exploit code: 1 proofs of concept on GitHub.
Other vulnerabilities in n/a
Sources
Also known as ALSA-2022:1991, AZL-6357, CLEANSTART-2024-HF57565, DEBIAN-CVE-2021-38185, GHSA-pp74-ghrg-jwfh, MGASA-2021-0423 and 14 more.