CVE-2023-45853
Critical
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.
SeverityCritical
CVSS9.8
Exploit probability—
ProductZlib
PublishedOct 14, 2023
First seenOct 14, 2023
Weakness typeCWE-190Integer overflow
How to fix
Update
- zlib zlib1.3.1 or later
Vendor advisories
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| zlib zlib | v < 1.3.1 | 1.3.1 |
| smihica pyminizip | v ≤ 0.2.6 | — |
| pyminizipPyPI | v ≤ 0.2.6 | — |
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