| Name | CVE-2020-21469 |
| Description | An issue was discovered in PostgreSQL 12.2 allows attackers to cause a denial of service via repeatedly sending SIGHUP signals. NOTE: this is disputed by the vendor because untrusted users cannot send SIGHUP signals; they can only be sent by a PostgreSQL superuser, a user with pg_reload_conf access, or a user with sufficient privileges at the OS level (the postgres account or the root account). |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| postgresql-11 (PTS) | buster, buster (lts) | 11.22-0+deb10u3 | fixed |
| buster (security) | 11.22-0+deb10u2 | fixed | |
| postgresql-13 (PTS) | bullseye | 13.16-0+deb11u1 | fixed |
| bullseye (security) | 13.18-0+deb11u1 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|---|---|---|---|---|---|
| postgresql-11 | source | buster | 11.10-0+deb10u1 | |||
| postgresql-11 | source | (unstable) | (unfixed) | |||
| postgresql-13 | source | (unstable) | (not affected) |
- postgresql-13 <not-affected> (Fixed before initial upload to Debian)
https://www.postgresql.org/message-id/CAA8ZSMqAHDCgo07hqKoM5XJaoQy6Vv76O7966agez4ffyQktkA%40mail.gmail.com
Fixed by: https://github.com/postgres/postgres/commit/9abb2bfc046070b22e3be28173a0736da31cab5a (REL_13_BETA1)
Fixed by: https://github.com/postgres/postgres/commit/8b53dbada4a6a9e5f16548ca2c4d17cff55933d8 (REL_12_5)
Fixed by: https://github.com/postgres/postgres/commit/85834023a95e16d1d3fe73b0608e1608573753c3 (REL_11_10)