Impact
Reader::read_from_container can cause an infinite loop when a crafted PNG file is given.
Patches
Version 0.5.3 includes the fix.
Workarounds
No workaround is available.
Applications that do not pass files with the PNG signature to Reader::read_from_container are not affected.
References
- https://github.com/kamadak/exif-rs/security/advisories/GHSA-px9g-8hgv-jvg2
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-21235
For more information
If you have any questions or comments about this advisory:
- Open an issue in github.com/kamadak/exif-rs
References
- https://github.com/kamadak/exif-rs/security/advisories/GHSA-px9g-8hgv-jvg2
- https://nvd.nist.gov/vuln/detail/CVE-2021-21235
- https://github.com/kamadak/exif-rs/commit/1b05eab57e484cd7d576d4357b9cda7fdc57df8c
- https://github.com/kamadak/exif-rs/commit/f21df24616ea611c5d5d0e0e2f8042eb74d5ff48
- https://crates.io/crates/kamadak-exif
- https://rustsec.org/advisories/RUSTSEC-2021-0143.html
- https://github.com/advisories/GHSA-px9g-8hgv-jvg2