ALT-PU-2020-2054-1
Closed vulnerabilities
Published: 2020-05-07
BDU:2021-04594
Уязвимость функций ares_destroy() и ares_getaddrinfo() библиотеки асинхронных DNS-запросов C-ares, связанная с использованием памяти после её освобождения, позволяющая нарушителю вызвать отказ в обслуживании
Severity: LOW (3.3)
Vector: AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
References:
Published: 2021-05-13
Modified: 2024-11-21
Modified: 2024-11-21
CVE-2020-14354
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: LOW (3.3)
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
References:
- https://bugzilla.redhat.com/show_bug.cgi?id=1866838
- https://bugzilla.redhat.com/show_bug.cgi?id=1866838
- https://c-ares.haxx.se/changelog.html
- https://c-ares.haxx.se/changelog.html
- https://github.com/c-ares/c-ares/commit/1cc7e83c3bdfaafbc5919c95025592d8de3a170e
- https://github.com/c-ares/c-ares/commit/1cc7e83c3bdfaafbc5919c95025592d8de3a170e
- FEDORA-2020-43d5a372fc
- FEDORA-2020-43d5a372fc
- https://packetstormsecurity.com/files/158755/GS20200804145053.txt
- https://packetstormsecurity.com/files/158755/GS20200804145053.txt