Lukebanto

Dulwich before 1.2.9 fails to validate DOS drive letter prefixes in Git tree path elements on Windows, allowing arbitrary file write. Attackers can craft a malicious repository with a tree entry named 'C:' that bypasses NTFS validation and writes files outside the worktree to achieve remote code execution.

Dulwich before 1.2.9 contains a denial of service vulnerability in Pack.resolve object that allows attackers to cause infinite recursion via self-referential OFS DELTA objects. Attackers can supply a malicious packfile with an OFS DELTA delta offset of 0 to exhaust CPU during clone, fetch, or cat-file operations.