Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: udf: reject descriptors with oversized CRC length udf_read_tagged() skips CRC verification when descCRCLength + sizeof(struct tag) exceeds the block size. A crafted UDF image can set descCRCLength to an oversized value to bypass CRC validation entirely; the descriptor is then accepted based solely on the 8-bit tag checksum, which is trivially recomputable. Reject such descriptors instead of silently accepting them. A legitimate single-block descriptor should never have a CRC length that exceeds the block.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | >= 2.6.12.1, < 5.10.258 |
References
- https://git.kernel.org/stable/c/1873eb81c65d3f849418d7386baa39c439c9fc38Patch
- https://git.kernel.org/stable/c/31605bbe94557bff721eaf041001169d44ac6f98Patch
- https://git.kernel.org/stable/c/3dede76d525919bb966f9213e131af685de5ff99Patch
- https://git.kernel.org/stable/c/50dfaf4a027742b4fcdc3e9305e7199ece9bc6a6Patch
- https://git.kernel.org/stable/c/55d41b0a20128e86b9e960dd2e3f0a2d69a18df7Patch
- https://git.kernel.org/stable/c/7d1b6adbf90df6c8941090d5646fbeca25ba9770Patch
- https://git.kernel.org/stable/c/832ab4a882dc9b3c0155490d9993642ef545fd22Patch
- https://git.kernel.org/stable/c/fdb26e628d2a211a23815d375bd33bdf863344e2Patch
FAQ
What is CVE-2026-53369?
CVE-2026-53369 is a vulnerability with a CVSS score of 8.4 (HIGH). In the Linux kernel, the following vulnerability has been resolved: udf: reject descriptors with oversized CRC length udf_read_tagged() skips CRC verification when descCRCLength + sizeof(struct tag)...
How severe is CVE-2026-53369?
CVE-2026-53369 has been rated HIGH with a CVSS base score of 8.4/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-53369?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.