Summary
Package updates are available for Amazon Linux 2 that fix the following vulnerabilities: CVE-2026-44471: gitoxide is an implementation of git written in Rust. Prior to 0.21.1, a malicious tree can be constructed that will, when checked out with gitoxide, permit writing an attacker-controlled symlink into any existing directory the user has write access to. During checkout, all symlink index entries are deferred and created after regular files using a single shared gix_worktree::Stack. Internally, this uses a gix_fs::Stack. gix_fs::Stack::make_relative_path_current() caches validated path prefixes: when the previously-processed leaf component exactly matches the leading component(s) of the next path, the leaf-to-directory transition at gix-fs/src/stack.rs invokes only delegate.push_directory(), never delegate.push(). In gix_worktree::stack::delegate::StackDelegate, when the state member is State::CreateDirectoryAndAttributesStack, Attributes::push_directory() only loads attributes (from the ODB, in the clone case), and does not perform any other checks. The on-disk symlink_metadata() check and unlink-on-collision live in StackDelegate::push()'s invocation of create_leading_directory(), which is therefore bypassed for the cached prefix. The final symlink is created with plain std::os::unix::fs::symlink, which follows symlinks in parent directories. Therefore, it's possible to provide a tree with duplicate symlink and directory entries that exploits this. This vulnerability is fixed in 0.21.1.
Fixed packages 12
| Release | Package | Fixed in |
|---|---|---|
| Amazon Linux · 2 | cargo | 0:1.96.0-1.amzn2.0.2 |
| Amazon Linux · 2 | clippy | 0:1.96.0-1.amzn2.0.2 |
| Amazon Linux · 2 | rust | 0:1.96.0-1.amzn2.0.2 |
| Amazon Linux · 2 | rust-analyzer | 0:1.96.0-1.amzn2.0.2 |
| Amazon Linux · 2 | rust-debugger-common | 0:1.96.0-1.amzn2.0.2 |
| Amazon Linux · 2 | rust-doc | 0:1.96.0-1.amzn2.0.2 |
| Amazon Linux · 2 | rust-gdb | 0:1.96.0-1.amzn2.0.2 |
| Amazon Linux · 2 | rust-src | 0:1.96.0-1.amzn2.0.2 |
| Amazon Linux · 2 | rust-std-static | 0:1.96.0-1.amzn2.0.2 |
| Amazon Linux · 2 | rust-toolset | 0:1.96.0-1.amzn2.0.2 |
| Amazon Linux · 2 | rust-toolset-srpm-macros | 0:1.96.0-1.amzn2.0.2 |
| Amazon Linux · 2 | rustfmt | 0:1.96.0-1.amzn2.0.2 |
Vulnerabilities 1
-
High 7.8
gitoxide: Symlink prefix-reuse allows worktree escape during checkout
gitoxide is an implementation of git written in Rust. Prior to 0.21.1, a malicious tree can be constructed that will, when checked out with gitoxide, permit writing an attacker-controlled symlink into any existing directory the user has write access to. Durin…
References
-
web
https://alas.aws.amazon.com/cve/html/CVE-2026-44471.html