CVE-2026-53369 - udf: reject descriptors with oversized CRC length

CVE-2026-53369 - udf: reject descriptors with oversized CRC length

https://cvefeed.io/rssfeed/latest.atom / Sun, 07/19/2026 - 13:06
CVE ID :CVE-2026-53369
Published : July 19, 2026, 9:17 a.m. | 1 hour, 32 minutes ago
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.
Severity: 0.0 | NA
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