| Name | CVE-2022-2795 |
| Description | By flooding the target resolver with queries exploiting this flaw an attacker can significantly impair the resolver's performance, effectively denying legitimate clients access to the DNS resolution service. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| References | DLA-3138-1, DSA-5235-1 |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| bind9 (PTS) | buster | 1:9.11.5.P4+dfsg-5.1+deb10u7 | vulnerable |
| buster (security) | 1:9.11.5.P4+dfsg-5.1+deb10u10 | fixed |
| bullseye | 1:9.16.44-1~deb11u1 | fixed |
| bullseye (security) | 1:9.16.48-1 | fixed |
| bookworm | 1:9.18.19-1~deb12u1 | fixed |
| bookworm (security) | 1:9.18.24-1 | fixed |
| sid, trixie | 1:9.19.21-1 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|
| bind9 | source | buster | 1:9.11.5.P4+dfsg-5.1+deb10u8 | | DLA-3138-1 | |
| bind9 | source | bullseye | 1:9.16.33-1~deb11u1 | | DSA-5235-1 | |
| bind9 | source | (unstable) | 1:9.18.7-1 | | | |
Notes
https://kb.isc.org/docs/cve-2022-2795
Fixed by: https://gitlab.isc.org/isc-projects/bind9/-/commit/e2014ba9e3b4236b0384ba17abfb2c9a155412f6 (v9_18_7)
Fixed by: https://gitlab.isc.org/isc-projects/bind9/-/commit/bf2ea6d8525bfd96a84dad221ba9e004adb710a8 (v9_16_33)