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CVE-2020-22217

Published: 22 August 2023

Buffer overflow vulnerability in c-ares before 1_16_1 thru 1_17_0 via function ares_parse_soa_reply in ares_parse_soa_reply.c.

Notes

AuthorNote
Priority reason:
Only an out-of-bounds read, so denial of service only

Priority

Medium

Cvss 3 Severity Score

5.9

Score breakdown

Status

Package Release Status
c-ares
Launchpad, Ubuntu, Debian
trusty Ignored
(end of standard support)
xenial Needs triage

bionic Needs triage

jammy Not vulnerable
(1.18.1-1ubuntu0.22.04.2)
lunar Not vulnerable
(1.18.1-2ubuntu0.1)
upstream Needs triage

focal
Released (1.15.0-1ubuntu0.4)
mantic Not vulnerable
(1.19.1-3)
Patches:
upstream: https://github.com/c-ares/c-ares/commit/1b98172b141fe874ad43e679e67506f9b2139043

Severity score breakdown

Parameter Value
Base score 5.9
Attack vector Network
Attack complexity High
Privileges required None
User interaction None
Scope Unchanged
Confidentiality None
Integrity impact None
Availability impact High
Vector CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H