According to the versions of the git packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities :

  - Git is an open source, scalable, distributed revision control system. Versions prior to 2.30.6, 2.31.5,     2.32.4, 2.33.5, 2.34.5, 2.35.5, 2.36.3, and 2.37.4 are subject to exposure of sensitive information to a     malicious actor. When performing a local clone (where the source and target of the clone are on the same     volume), Git copies the contents of the source's `$GIT_DIR/objects` directory into the destination by     either creating hardlinks to the source contents, or copying them (if hardlinks are disabled via `--no-     hardlinks`). A malicious actor could convince a victim to clone a repository with a symbolic link pointing     at sensitive information on the victim's machine. This can be done either by having the victim clone a     malicious repository on the same machine, or having them clone a malicious repository embedded as a bare     repository via a submodule from any source, provided they clone with the `--recurse-submodules` option.
    Git does not create symbolic links in the `$GIT_DIR/objects` directory. The problem has been patched in     the versions published on 2022-10-18, and backported to v2.30.x. Potential workarounds: Avoid cloning     untrusted repositories using the `--local` optimization when on a shared machine, either by passing the     `--no-local` option to `git clone` or cloning from a URL that uses the `file://` scheme. Alternatively,     avoid cloning repositories from untrusted sources with `--recurse-submodules` or run `git config --global     protocol.file.allow user`. (CVE-2022-39253)

  - Git is an open source, scalable, distributed revision control system. `git shell` is a restricted login     shell that can be used to implement Git's push/pull functionality via SSH. In versions prior to 2.30.6,     2.31.5, 2.32.4, 2.33.5, 2.34.5, 2.35.5, 2.36.3, and 2.37.4, the function that splits the command arguments     into an array improperly uses an `int` to represent the number of entries in the array, allowing a     malicious actor to intentionally overflow the return value, leading to arbitrary heap writes. Because the     resulting array is then passed to `execv()`, it is possible to leverage this attack to gain remote code     execution on a victim machine. Note that a victim must first allow access to `git shell` as a login shell     in order to be vulnerable to this attack. This problem is patched in versions 2.30.6, 2.31.5, 2.32.4,     2.33.5, 2.34.5, 2.35.5, 2.36.3, and 2.37.4 and users are advised to upgrade to the latest version.
    Disabling `git shell` access via remote logins is a viable short-term workaround. (CVE-2022-39260)

Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

Detections

Analytics

EulerOS 2.0 SP11 : git (EulerOS-SA-2023-1009)

high Nessus Plugin ID 169570

Version 1.0