#VU83485 Out-of-bounds read in c-ares - CVE-2020-22217
Published: November 24, 2023
Vulnerability identifier: #VU83485
Vulnerability risk: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2020-22217
CWE-ID: CWE-125
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
c-ares
c-ares
Software vendor:
c-ares.haxx.se
c-ares.haxx.se
Description
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a boundary condition within the ares_parse_soa_reply() function in ares_parse_soa_reply.c. A remote attacker can trigger an out-of-bounds read error and crash the application.
Remediation
Install updates from vendor's website.