CVE-2026-42443
| Summary |
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.
|
| Publication Date |
May 13, 2026, 5:16 a.m. |
| Registration Date |
May 15, 2026, 4:18 a.m. |
| Last Update |
May 14, 2026, 1:26 a.m. |
|
CVSS3.1 : LOW
|
| スコア |
3.3
|
| Vector |
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L |
| 攻撃元区分(AV) |
ローカル |
| 攻撃条件の複雑さ(AC) |
低 |
| 攻撃に必要な特権レベル(PR) |
不要 |
| 利用者の関与(UI) |
要 |
| 影響の想定範囲(S) |
変更なし |
| 機密性への影響(C) |
なし |
| 完全性への影響(I) |
なし |
| 可用性への影響(A) |
低 |
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