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Fedora 41: rust-astral-tokio-tar Critical PAX Header Desync CVE-2025-62518

fedora
Calendar Grey November 3, 2025
Dist Fedora Esm H88
Security fix for rust-astral-tokio-tar on Fedora 41 addresses CVE-2025-62518 PAX header issue. Update details provided.
uv 0.9.5 https://github.com/astral-sh/uv/blob/0.9.5/CHANGELOG.md Since uv was built with astral-tokio-tar 0.5.6, this is a security fix for CVE-2025-62518

Summary

A Rust implementation of an async TAR file reader and writer. This

library does not currently handle compression, but it is abstract over

all I/O readers and writers. Additionally, great lengths are taken to

ensure that the entire contents are never required to be entirely

resident in memory all at once.

Update Information:

uv 0.9.5 https://github.com/astral-sh/uv/blob/0.9.5/CHANGELOG.md Since uv was built with astral-tokio-tar 0.5.6, this is a security fix for CVE-2025-62518. ruff 0.14.2 https://github.com/astral-sh/ruff/blob/0.14.2/CHANGELOG.md rust-astral-tokio-tar 0.5.6 Fixed a parser desynchronization vulnerability when reading tar archives that contain mismatched size information in PAX/ustar headers. This vulnerability is being tracked as GHSA-j5gw-2vrg-8fgx and CVE-2025-62518. Initial package for python-uv-build in Fedora 42 Initial packages for a number of new dependencies for ruff and uv. Update rust-tikv-jemallocator and rust-tikv-jemalloc-sys to 0.6.1. Patch openapi-python-client to allow ruff 0.14

Topics%20covered

Topics Covered

security advisory fedora critical rust-astral-tokio-tar cve-2025-62518 pax desynchronization

Change Log

* Tue Oct 21 2025 Benjamin A. Beasley - 0.5.6-1 - Update to version 0.5.6; Fixes RHBZ#2405351 - Security fix for CVE-2025-62518

References


[ 1 ] Bug #2360699 - ruff-0.14.1 is available https://bugzilla.redhat.com/show_bug.cgi?id=2360699 [ 2 ] Bug #2402441 - rust-reqsign-core-2.0.0 is available https://bugzilla.redhat.com/show_bug.cgi?id=2402441 [ 3 ] Bug #2402442 - rust-reqsign-command-execute-tokio-2.0.0 is available https://bugzilla.redhat.com/show_bug.cgi?id=2402442 [ 4 ] Bug #2402443 - rust-reqsign-http-send-reqwest-2.0.0 is available https://bugzilla.redhat.com/show_bug.cgi?id=2402443 [ 5 ] Bug #2402881 - python-uv-build-0.9.5 is available https://bugzilla.redhat.com/show_bug.cgi?id=2402881 [ 6 ] Bug #2402923 - uv-0.9.5 is available https://bugzilla.redhat.com/show_bug.cgi?id=2402923 [ 7 ] Bug #2405471 - CVE-2025-62518 rust-astral-tokio-tar: astral-tokio-tar Vulnerable to PAX Header Desynchronization [fedora-41] https://bugzilla.redhat.com/show_bug.cgi?id=2405471 [ 8 ] Bug #2405472 - CVE-2025-62518 uv: astral-tokio-tar Vulnerable...

Read the Full Advisory

Update Instructions

This update can be installed with the "dnf" update program. Use su -c 'dnf upgrade --advisory FEDORA-2025-43a0bff5ea' at the command line. For more information, refer to the dnf documentation available at http://dnf.readthedocs.io/en/latest/command_ref.html#upgrade-command-label

Severity
critical
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Critical

Name: rust-astral-tokio-tar
Product: Fedora 41
Version: 0.5.6
Release: 1.fc41
URL: https://crates.io/crates/astral-tokio-tar
Summary: Rust implementation of an async TAR file reader and writer

Topics%20covered

Topics Covered

security advisory fedora critical rust-astral-tokio-tar cve-2025-62518 pax desynchronization

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