CVE-2023-45853

moderate-risk
Published 2023-10-14

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.

Do I need to act?

~
1.3% chance of exploitation in next 30 days
EPSS score — moderate exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
+
Fix available
Upgrade to: 51b7f2abdade71cd9bb0e7a373ef2610ec6f9daf
9
CVSS 9.8/10 Critical
NETWORK / LOW complexity

Affected Products (2)

Pyminizip

Affected Vendors

Zlib Smihica

References (22)

Mailing List http://www.openwall.com/lists/oss-security/2023/10/20/9
Mailing List http://www.openwall.com/lists/oss-security/2024/01/24/10
Mailing List https://chromium.googlesource.com/chromium/src/+/d709fb23806858847131027da95ef4c...
Mailing List https://chromium.googlesource.com/chromium/src/+/de29dd6c7151d3cd37cb4cf0036800d...
Product https://github.com/madler/zlib/blob/ac8f12c97d1afd9bafa9c710f827d40a407d3266/con...
Issue Tracking https://github.com/madler/zlib/pull/843
Mailing List https://lists.debian.org/debian-lts-announce/2023/11/msg00026.html
Release Notes https://pypi.org/project/pyminizip/#history
Third Party Advisory https://security.gentoo.org/glsa/202401-18
Third Party Advisory https://security.netapp.com/advisory/ntap-20231130-0009/
Product https://www.winimage.com/zLibDll/minizip.html
Mailing List http://www.openwall.com/lists/oss-security/2023/10/20/9
Mailing List http://www.openwall.com/lists/oss-security/2024/01/24/10
Mailing List https://chromium.googlesource.com/chromium/src/+/d709fb23806858847131027da95ef4c...
Mailing List https://chromium.googlesource.com/chromium/src/+/de29dd6c7151d3cd37cb4cf0036800d...
Product https://github.com/madler/zlib/blob/ac8f12c97d1afd9bafa9c710f827d40a407d3266/con...
Issue Tracking https://github.com/madler/zlib/pull/843
Mailing List https://lists.debian.org/debian-lts-announce/2023/11/msg00026.html
Release Notes https://pypi.org/project/pyminizip/#history
Third Party Advisory https://security.gentoo.org/glsa/202401-18
and 2 more references
43
/ 100
moderate-risk
Severity 32/34 · Critical
Exploitability 4/34 · Minimal
Exposure 7/34 · Low