| Name | CVE-2021-23017 |
| Description | A security issue in nginx resolver was identified, which might allow a ... |
| Source | CVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| References | DLA-2670-1, DSA-4921-1 |
| Debian Bugs | 989095 |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| nginx (PTS) | bullseye | 1.18.0-6.1+deb11u3 | fixed |
| bullseye (security) | 1.18.0-6.1+deb11u5 | fixed |
| bookworm | 1.22.1-9+deb12u3 | fixed |
| bookworm (security) | 1.22.1-9+deb12u4 | fixed |
| trixie (security), trixie | 1.26.3-3+deb13u2 | fixed |
| forky, sid | 1.30.0-2 | fixed |
The information below is based on the following data on fixed versions.
Notes
https://www.openwall.com/lists/oss-security/2021/05/25/5
Patch: http://nginx.org/download/patch.2021.resolver.txt
Fixed by: https://github.com/nginx/nginx/commit/7199ebc203f74fd9e44595474de6bdc41740c5cf (1.20.1)