CVE-2025-62518 - astral-tokio-tar Vulnerable to PAX Header Desynchronization

CVE-2025-62518 - astral-tokio-tar Vulnerable to PAX Header Desynchronization

https://cvefeed.io/rssfeed/latest.atom / Tue, 10/21/2025 - 20:44
CVE ID : CVE-2025-62518
Published : Oct. 21, 2025, 5:15 p.m. | 24 minutes ago
Description : astral-tokio-tar is a tar archive reading/writing library for async Rust. Versions of astral-tokio-tar prior to 0.5.6 contain a boundary parsing vulnerability that allows attackers to smuggle additional archive entries by exploiting inconsistent PAX/ustar header handling. When processing archives with PAX-extended headers containing size overrides, the parser incorrectly advances stream position based on ustar header size (often zero) instead of the PAX-specified size, causing it to interpret file content as legitimate tar headers. This issue has been patched in version 0.5.6. There are no workarounds.
Severity: 8.1 | HIGH
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