CVE-2020-22217
MEDIUMCVSS 5.9/10EPSS 0.84%
Last modified
CVE-2020-22217 is a medium-severity vulnerability rated 5.9/10 on the CVSS scale. 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.. EPSS estimates a 0.84% chance of exploitation in the next 30 days.
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.
Metrics
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| C-Ares | C-Ares | 1.16.1 |
| C-Ares | C-Ares | 1.17.0 |
| Debian | Debian Linux | 10.0 |
References
- https://github.com/c-ares/c-ares/issues/333Exploit, Issue Tracking, Patch
- https://lists.debian.org/debian-lts-announce/2023/09/msg00014.htmlMailing List, Third Party Advisory
- https://github.com/c-ares/c-ares/issues/333Exploit, Issue Tracking, Patch
- https://lists.debian.org/debian-lts-announce/2023/09/msg00014.htmlMailing List, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2020-22217?
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.
How severe is CVE-2020-22217?
CVE-2020-22217 has a CVSS score of 5.9/10 (MEDIUM severity). The EPSS model estimates a 0.84% probability of exploitation in the next 30 days.
How do I fix CVE-2020-22217?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
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Are you affected by CVE-2020-22217?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST