Integer overflow in Smihica Pyminizip
CVE-2023-45853
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.
Vulnerability class: Integer Overflow
EPSS: 0.032 (86.7th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Smihica Pyminizip
- Zlib
- N/a — versions n/a
Weakness classification (CWE)
Public proof-of-concept exploits
References
- cve@mitre.org (Patch, Issue Tracking)
- cve@mitre.org (Product)
- cve@mitre.org (Product)
- cve@mitre.org (Patch, Mailing List)
- cve@mitre.org (Patch, Mailing List)
- cve@mitre.org (mailing-list, Mailing List)
- cve@mitre.org (mailing-list, Mailing List, Third Party Advisory)
- cve@mitre.org (Third Party Advisory)
- cve@mitre.org (Release Notes)
- cve@mitre.org (vendor-advisory, Third Party Advisory)
Frequently asked questions
- What is CVE-2023-45853?
- CVE-2023-45853 is a critical-severity vulnerability in Smihica Pyminizip, classified under Integer Overflow or Wraparound. CVSS score: 9.8/10. Published 2023-10-14.
- How severe is CVE-2023-45853?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2023-45853 known to be exploited?
- 60 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.