CVE-2023-45853

CRITICAL9.8EPSS 1.4%

pyminizip affected by zlib's integer overflow/heap based buffer overflow vulnerability due to vulnerable dependency

Published: 10/14/2023Modified: 12/3/2025
Also known as:ALPINE-CVE-2023-45853

Description

MiniZip in zlib through 1.3 has an integer overflow and resultant heap-based buffer overflow in zipOpenNewFileInZip4_64 via a long filename, comment, or extra field. NOTE: MiniZip is not a supported part of the zlib product. NOTE: pyminizip through 0.2.6 is also vulnerable because it bundles an affected zlib version, and exposes the applicable MiniZip code through its compress API.

Affected packages (5)

CVSS scores

SourceVersionSeverityVector
osvCVSS 3.1CRITICAL9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References (17)