CVE-2026-53615 (GCVE-0-2026-53615)
Vulnerability from cvelistv5
Published
2026-10-14 15:56
Modified
2026-10-15 15:07
Severity ?
8.0 (High) - CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:H
CWE
  • CWE-190 - Integer Overflow or Wraparound
Summary
util-linux is a random collection of Linux utilities. Before util-linux 2.41.4, `parse_dos_extended()` in `libblkid/src/partitions/dos.c` computes an extended-partition start sector with 32-bit addition and does not apply the extended-area bounds checks to the first two EBR entries. A local attacker who causes a crafted DOS extended-partition disk image or removable medium to be probed can wrap `cur_start + start` to sector zero and cause libblkid to report a false partition overlapping the MBR. This directly compromises the integrity of the reported partition metadata; disk modification or availability loss requires a separate downstream consumer to act on that metadata. This issue is fixed in 2.41.4.
References
Impacted products
Vendor Product Version
util-linux util-linux Version: < 2.41.4
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