CVE-2020-14354
Published: May 13, 2021Last modified: September 16, 2023
Description
A possible use-after-free and double-free in c-ares lib version 1.16.0 if ares_destroy() is called prior to ares_getaddrinfo() completing. This flaw possibly allows an attacker to crash the service that uses c-ares lib. The highest threat from this vulnerability is to this service availability.
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 3.3 |
| Attack Vector | LOCAL |
| Attack complexity | LOW |
| Privileges required | LOW |
| User interaction | NONE |
| Scope | UNCHANGED |
| Confidentiality | NONE |
| Integrity impact | NONE |
| Availability impact | LOW |
| Vector | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L |
Status
| Product | Release | Package | Status |
|---|---|---|---|
| Alpaquita Linux | 23 LTS | c-ares | Not affected (1.19.1-r0) |
| Stream | c-ares | Not affected (1.19.1-r1) |
References
- https://bugzilla.redhat.com/show_bug.cgi?id=1866838
- https://c-ares.haxx.se/changelog.html
- https://github.com/c-ares/c-ares/commit/1cc7e83c3bdfaafbc5919c95025592d8de3a170e
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4OOYAMJVLLCLXDTHW3V5UXNULZBBK4O6/
- https://lists.fedoraproject.org/archives/list/[email protected]/message/4OOYAMJVLLCLXDTHW3V5UXNULZBBK4O6/
- https://packetstormsecurity.com/files/158755/GS20200804145053.txt