Vulnerability Description
fish is a command line shell. fish version 3.1.0 through version 3.3.1 is vulnerable to arbitrary code execution. git repositories can contain per-repository configuration that change the behavior of git, including running arbitrary commands. When using the default configuration of fish, changing to a directory automatically runs `git` commands in order to display information about the current repository in the prompt. If an attacker can convince a user to change their current directory into one controlled by the attacker, such as on a shared file system or extracted archive, fish will run arbitrary commands under the attacker's control. This problem has been fixed in fish 3.4.0. Note that running git in these directories, including using the git tab completion, remains a potential trigger for this issue. As a workaround, remove the `fish_git_prompt` function from the prompt.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Fishshell | Fish | >= 3.1.0, <= 3.3.1 |
| Fedoraproject | Fedora | 35 |
| Debian | Debian Linux | 11.0 |
Related Weaknesses (CWE)
References
- https://github.com/fish-shell/fish-shell/pull/8589PatchThird Party Advisory
- https://github.com/fish-shell/fish-shell/releases/tag/3.4.0Release NotesThird Party Advisory
- https://github.com/fish-shell/fish-shell/security/advisories/GHSA-pj5f-6vxj-f5mqThird Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://security.gentoo.org/glsa/202309-10
- https://www.debian.org/security/2022/dsa-5234Third Party Advisory
- https://github.com/fish-shell/fish-shell/pull/8589PatchThird Party Advisory
- https://github.com/fish-shell/fish-shell/releases/tag/3.4.0Release NotesThird Party Advisory
- https://github.com/fish-shell/fish-shell/security/advisories/GHSA-pj5f-6vxj-f5mqThird Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://security.gentoo.org/glsa/202309-10
- https://www.debian.org/security/2022/dsa-5234Third Party Advisory
FAQ
What is CVE-2022-20001?
CVE-2022-20001 is a vulnerability with a CVSS score of 7.8 (HIGH). fish is a command line shell. fish version 3.1.0 through version 3.3.1 is vulnerable to arbitrary code execution. git repositories can contain per-repository configuration that change the behavior of ...
How severe is CVE-2022-20001?
CVE-2022-20001 has been rated HIGH with a CVSS base score of 7.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2022-20001?
Check the references section above for vendor advisories and patch information. Affected products include: Fishshell Fish, Fedoraproject Fedora, Debian Debian Linux.