minizip: MiniZip in zlib through 1.3 has an integer overflow and resultant heap-based buffer overflow in zipOpenNewFileInZip4_...
CVE-2023-45853 is fixed in 9 products on 1 platform, first by DEBIAN-CVE-2023-45853, released October 14, 2023. It is not reported as exploited. Patch Radar priority: Urgent.
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.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| minizip · Debian 12.15 (bookworm) | 1.1-8+deb12u1 | DEBIAN-CVE-2023-45853 | Oct 14, 2023 |
| minizip-compat · amzn 2023 | 1.2.11-33.amzn2023.0.5 | ALAS2023-2023-410 | Oct 30, 2023 |
| minizip-compat-debuginfo · amzn 2023 | 1.2.11-33.amzn2023.0.5 | ALAS2023-2023-410 | Oct 30, 2023 |
| minizip-compat-devel · amzn 2023 | 1.2.11-33.amzn2023.0.5 | ALAS2023-2023-410 | Oct 30, 2023 |
| zlib · Debian 13.5 (trixie) | 1:1.3.dfsg-2 | DEBIAN-CVE-2023-45853 | Oct 14, 2023 |
| zlib · Debian 14 | 1:1.3.dfsg-2 | DEBIAN-CVE-2023-45853 | Oct 14, 2023 |
| zlib · amzn 2023 | 1.2.11-33.amzn2023.0.5 | ALAS2023-2023-410 | Oct 30, 2023 |
| zlib · opensuse-leap 16.0 | 1.2.13-160000.3.1 | OPENSUSE-SU-2026:20487-1 | Apr 9, 2026 |
| zlib · sles 16.0 | 1.2.13-160000.3.1 | SUSE-SU-2026:21151-1 | Apr 9, 2026 |
| zlib-debuginfo · amzn 2023 | 1.2.11-33.amzn2023.0.5 | ALAS2023-2023-410 | Oct 30, 2023 |
| zlib-debugsource · amzn 2023 | 1.2.11-33.amzn2023.0.5 | ALAS2023-2023-410 | Oct 30, 2023 |
| zlib-devel · amzn 2023 | 1.2.11-33.amzn2023.0.5 | ALAS2023-2023-410 | Oct 30, 2023 |
| zlib-static · amzn 2023 | 1.2.11-33.amzn2023.0.5 | ALAS2023-2023-410 | Oct 30, 2023 |
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