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A signed integer overflow vulnerability was found in libarchive-s ZIP writer. In the archive_write_zip_header function in archive_write_set_format_zip.c, when ZIP encryption is enabled and the entry file size is close to INT64_MAX, the addition of the encryption overhead to the entry size overflows int64_t, resulting in undefined behavior. This could lead to incorrect Zip64 extension decisions or potential memory corruption.
CVSS 2.9EPSS 0.078%Riziko 0.29
Zobraziť zdroj- Zverejnené
- 2026-07-21 23:17:00
- Dotknuté verzie
- unknown
- Typ
- Knižnica
- Posledná úprava
- 2026-07-22 19:16:57
- Vektor
- CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L