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CVE-2023-45853

critical CVSS 9.8 EPSS 3.2%

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.

Versions it affects

Software versions checked with the free lookup that CVE-2023-45853 applies to, and the release that fixes it where the sources name one.

zlib 1.2.11 fixed in 2511

At a glance

Severity
Critical
CVSS base score
9.8 out of 10
Known exploited
Not in CISA's catalogue of exploited vulnerabilities
EPSS
3.2% probability of exploitation in the next 30 days, higher than 88% of scored vulnerabilities
Weakness
CWE-190
Published
2023-10-14
NVD CVE.org

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