Summary
Package updates are available for Amazon Linux 2 that fix the following vulnerabilities: CVE-2023-23946: Git, a revision control system, is vulnerable to path traversal prior to versions 2.39.2, 2.38.4, 2.37.6, 2.36.5, 2.35.7, 2.34.7, 2.33.7, 2.32.6, 2.31.7, and 2.30.8. By feeding a crafted input to `git apply`, a path outside the working tree can be overwritten as the user who is running `git apply`. A fix has been prepared and will appear in v2.39.2, v2.38.4, v2.37.6, v2.36.5, v2.35.7, v2.34.7, v2.33.7, v2.32.6, v2.31.7, and v2.30.8. As a workaround, use `git apply --stat` to inspect a patch before applying; avoid applying one that creates a symbolic link and then creates a file beyond the symbolic link. CVE-2023-22490: Git is a revision control system. Using a specially-crafted repository, Git prior to versions 2.39.2, 2.38.4, 2.37.6, 2.36.5, 2.35.7, 2.34.7, 2.33.7, 2.32.6, 2.31.7, and 2.30.8 can be tricked into using its local clone optimization even when using a non-local transport. Though Git will abort local clones whose source `$GIT_DIR/objects` directory contains symbolic links, the `objects` directory itself may still be a symbolic link. These two may be combined to include arbitrary files based on known paths on the victim's filesystem within the malicious repository's working copy, allowing for data exfiltration in a similar manner as CVE-2022-39253. A fix has been prepared and will appear in v2.39.2 v2.38.4 v2.37.6 v2.36.5 v2.35.7 v2.34.7 v2.33.7 v2.32.6, v2.31.7 and v2.30.8. If upgrading is impractical, two short-term workarounds are available. Avoid cloning repositories from untrusted sources with `--recurse-submodules`. Instead, consider cloning repositories without recursively cloning their submodules, and instead run `git submodule update` at each layer. Before doing so, inspect each new `.gitmodules` file to ensure that it does not contain suspicious module URLs.
Fixed packages 18
| Release | Package | Fixed in |
|---|---|---|
| Amazon Linux · 2 | git | 0:2.39.2-1.amzn2.0.1 |
| Amazon Linux · 2 | git-all | 0:2.39.2-1.amzn2.0.1 |
| Amazon Linux · 2 | git-core | 0:2.39.2-1.amzn2.0.1 |
| Amazon Linux · 2 | git-core-doc | 0:2.39.2-1.amzn2.0.1 |
| Amazon Linux · 2 | git-credential-libsecret | 0:2.39.2-1.amzn2.0.1 |
| Amazon Linux · 2 | git-cvs | 0:2.39.2-1.amzn2.0.1 |
| Amazon Linux · 2 | git-daemon | 0:2.39.2-1.amzn2.0.1 |
| Amazon Linux · 2 | git-debuginfo | 0:2.39.2-1.amzn2.0.1 |
| Amazon Linux · 2 | git-email | 0:2.39.2-1.amzn2.0.1 |
| Amazon Linux · 2 | git-gui | 0:2.39.2-1.amzn2.0.1 |
| Amazon Linux · 2 | git-instaweb | 0:2.39.2-1.amzn2.0.1 |
| Amazon Linux · 2 | git-p4 | 0:2.39.2-1.amzn2.0.1 |
| Amazon Linux · 2 | git-subtree | 0:2.39.2-1.amzn2.0.1 |
| Amazon Linux · 2 | git-svn | 0:2.39.2-1.amzn2.0.1 |
| Amazon Linux · 2 | gitk | 0:2.39.2-1.amzn2.0.1 |
| Amazon Linux · 2 | gitweb | 0:2.39.2-1.amzn2.0.1 |
| Amazon Linux · 2 | perl-Git | 0:2.39.2-1.amzn2.0.1 |
| Amazon Linux · 2 | perl-Git-SVN | 0:2.39.2-1.amzn2.0.1 |
Vulnerabilities 2
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Medium 6.2CVE-2023-23946 Public exploit
Git's `git apply` overwriting paths outside the working tree
Git, a revision control system, is vulnerable to path traversal prior to versions 2.39.2, 2.38.4, 2.37.6, 2.36.5, 2.35.7, 2.34.7, 2.33.7, 2.32.6, 2.31.7, and 2.30.8. By feeding a crafted input to `git apply`, a path outside the working tree can be overwritten…
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Medium 5.5CVE-2023-22490 Public exploit
Git vulnerable to local clone-based data exfiltration with non-local transports
Git is a revision control system. Using a specially-crafted repository, Git prior to versions 2.39.2, 2.38.4, 2.37.6, 2.36.5, 2.35.7, 2.34.7, 2.33.7, 2.32.6, 2.31.7, and 2.30.8 can be tricked into using its local clone optimization even when using a non-local…