| Name | CVE-2022-37434 |
| Description | zlib through 1.2.12 has a heap-based buffer over-read or buffer overflow in inflate in inflate.c via a large gzip header extra field. NOTE: only applications that call inflateGetHeader are affected. Some common applications bundle the affected zlib source code but may be unable to call inflateGetHeader (e.g., see the nodejs/node reference). |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub advisories/code/issues, web search, more) |
| References | DLA-3103-1, DSA-5218-1 |
| Debian Bugs | 1016710 |
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| libz-mingw-w64 (PTS) | buster, bullseye | 1.2.11+dfsg-2 | vulnerable |
| bookworm, sid | 1.2.13+dfsg-1 | fixed | |
| zlib (PTS) | buster | 1:1.2.11.dfsg-1+deb10u1 | vulnerable |
| buster (security) | 1:1.2.11.dfsg-1+deb10u2 | fixed | |
| bullseye (security), bullseye | 1:1.2.11.dfsg-2+deb11u2 | fixed | |
| bookworm, sid | 1:1.2.13.dfsg-1 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|---|---|---|---|---|---|
| libz-mingw-w64 | source | (unstable) | 1.2.12+dfsg-2 | |||
| zlib | source | buster | 1:1.2.11.dfsg-1+deb10u2 | DLA-3103-1 | ||
| zlib | source | bullseye | 1:1.2.11.dfsg-2+deb11u2 | DSA-5218-1 | ||
| zlib | source | (unstable) | 1:1.2.11.dfsg-4.1 | 1016710 |
[bullseye] - libz-mingw-w64 <no-dsa> (Minor issue)
[buster] - libz-mingw-w64 <no-dsa> (Minor issue)
https://github.com/ivd38/zlib_overflow
https://github.com/madler/zlib/commit/eff308af425b67093bab25f80f1ae950166bece1
https://github.com/madler/zlib/commit/1eb7682f845ac9e9bf9ae35bbfb3bad5dacbd91d