QID 354349

Date Published: 2022-12-21

QID 354349: Amazon Linux Security Advisory for fish : ALAS2022-2022-056

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 attackers 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. (
( CVE-2022-20001)

Note: The preceding description block is extracted directly from the security advisory. Using automation, we have attempted to clean and format it as much as possible without introducing additional issues.

Successful exploitation of this vulnerability could lead to a securitybreach or could affect integrity, availability, and confidentiality.

CVSS V3 rated as High - 7.8 severity.

CVSS V2 rated as High - 6.8 severity.

Solution

Please refer to Amazon advisory: ALAS2022-2022-056 for affected packages and patching details, or update with your package manager.

Vendor References

ALAS2022-2022-056 - alas.aws.amazon.com/AL2022/ALAS-2022-056.html

CVEs related to QID 354349

CVE-2022-20001 |

Software Advisories

Advisory ID	Software	Component	Link
ALAS2022-2022-056	amazon linux 2022		alas.aws.amazon.com/AL2022/ALAS-2022-056.html

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