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CVE-2026-42443

NanaZip: Integer divide-by-zero in NanaZip UFS inode offset calculation PUBLISHED

Description (CNA)

NanaZip is an open source file archive. From 5.0.1252.0 to before 6.0.1698.0, an integer divide-by-zero exists in the UFS/UFS2 filesystem image parser in NanaZip. The vulnerability is triggered when opening a crafted UFS image where the superblock field fs_ipg (inodes per cylinder group) is set to zero. The parser uses this attacker-controlled value as a divisor without validation, causing an immediate hardware trap and process crash. This vulnerability is fixed in 6.0.1698.0.

Affected (CNA)

Vendor / productVersions
M2Team / NanaZipaffected >= 5.0.1250.0, < 6.0.1698.0

CWE

CWE-369

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.