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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…
High8.8EPSS 3.4%
- Published
- Updated
- Reserved
- Assigned by
- mitre
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.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| CISA-ADPADP (enrichment) | 3.1 | High8.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
| NVDNVD · Modified | 3.1 | Critical9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 3.4% · top 11% of all CVEs (6 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: total
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 8.8.
Weakness
Affected products
n/a
- affected n/a
Affected packages
From reviewed advisories of the GitHub Advisory Database.
- PyPIpyminizipGHSA-mq29-j5xf-cjwr (opens in a new tab)
References (14)
- https://github.com/madler/zlib/pull/843 (opens in a new tab)x_transferred
- https://www.winimage.com/zLibDll/minizip.html (opens in a new tab)x_transferred
- https://github.com/madler/zlib/blob/ac8f12c97d1afd9bafa9c710f827d40a407d3266/contrib/README.contrib#L1-L4 (opens in a new tab)x_transferred
- https://chromium.googlesource.com/chromium/src/+/de29dd6c7151d3cd37cb4cf0036800ddfb1d8b61 (opens in a new tab)x_transferred
- https://chromium.googlesource.com/chromium/src/+/d709fb23806858847131027da95ef4c548813356 (opens in a new tab)x_transferred
- [oss-security] 20231020 CVE-2023-45853: overflows in MiniZip in zlib through 1.3 (opens in a new tab)mailing-listx_transferred
- [debian-lts-announce] 20231127 [SECURITY] [DLA 3670-1] minizip security update (opens in a new tab)mailing-listx_transferred
- https://security.netapp.com/advisory/ntap-20231130-0009/ (opens in a new tab)x_transferred
- https://pypi.org/project/pyminizip/#history (opens in a new tab)x_transferred
- GLSA-202401-18 (opens in a new tab)vendor-advisoryx_transferred
- [oss-security] 20240124 Re: CVE-2023-45853: overflows in MiniZip in zlib through 1.3 (opens in a new tab)mailing-listx_transferred
- https://cert-portal.siemens.com/productcert/html/ssa-398330.html (opens in a new tab)
- https://cert-portal.siemens.com/productcert/html/ssa-769027.html (opens in a new tab)
- https://cert-portal.siemens.com/productcert/html/ssa-470355.html (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisory GHSA-mq29-j5xf-cjwr (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2023-45853)Record last updated .