| Name | CVE-2021-25214 |
| Description | In BIND 9.8.5 -> 9.8.8, 9.9.3 -> 9.11.29, 9.12.0 -> 9.16.13, and versions BIND 9.9.3-S1 -> 9.11.29-S1 and 9.16.8-S1 -> 9.16.13-S1 of BIND 9 Supported Preview Edition, as well as release versions 9.17.0 -> 9.17.11 of the BIND 9.17 development branch, when a vulnerable version of named receives a malformed IXFR triggering the flaw described above, the named process will terminate due to a failed assertion the next time the transferred secondary zone is refreshed. |
| 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-2647-1, DSA-4909-1 |
| Debian Bugs | 987741 |
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| bind9 (PTS) | bullseye | 1:9.16.50-1~deb11u2 | fixed |
| bullseye (security) | 1:9.16.50-1~deb11u1 | fixed | |
| bookworm, bookworm (security) | 1:9.18.28-1~deb12u2 | fixed | |
| sid, trixie | 1:9.20.4-3 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|---|---|---|---|---|---|
| bind9 | source | stretch | 1:9.10.3.dfsg.P4-12.3+deb9u9 | DLA-2647-1 | ||
| bind9 | source | buster | 1:9.11.5.P4+dfsg-5.1+deb10u5 | DSA-4909-1 | ||
| bind9 | source | (unstable) | 1:9.16.15-1 | 987741 |
https://kb.isc.org/docs/cve-2021-25214
https://gitlab.isc.org/isc-projects/bind9/commit/f68d4cba3321ed375bbc334e2333250893c4f587 (v9_16_15)
https://gitlab.isc.org/isc-projects/bind9/commit/f092fcee10a7e8b391747dbdd7e58243bff4f75c (v9_16_15)
https://gitlab.isc.org/isc-projects/bind9/commit/01a916abac22f87a248a7525d3e7408acac0804b (v9_16_15)