What’s Vulnerable › Vulnerabilities

CVE-2020-22217

• Severity: medium (CVSS 5.9 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.0% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2023-08-22 · updated 2026-06-17
• Weakness: CWE-125

Description

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.

Affected products

• c-ares: 1.16.1, 1.17.0
• Debian Linux: 10.0

References

• https://github.com/c-ares/c-ares/issues/333
• https://lists.debian.org/debian-lts-announce/2023/09/msg00014.html
• https://github.com/c-ares/c-ares/issues/333
• https://lists.debian.org/debian-lts-announce/2023/09/msg00014.html

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