CVE & CISA-KEV Catalog

CVE-2020-22217

MEDIUM

5.9

CVSS v3

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.

CWE-125Out-of-bounds Read

How to fix

Remediation Available

c-aresDebian

Fixed in:1.17.1-1CVE-2020-22217

Fixed in:1.17.1-1CVE-2020-22217

Fixed in:1.17.1-1CVE-2020-22217

Fixed in:1.17.1-1CVE-2020-22217

c-aresRocky

Fixed in:0:1.13.0-9.el8_9.1RHSA-2023:7207

Fixed in:0:1.13.0-9.el8_9.1RHSA-2023:7207

Fixed in:0:1.13.0-6.el8_6.3RHSA-2024:0419

Fixed in:0:1.13.0-6.el8_6.3RHSA-2024:0419

Fixed in:0:1.13.0-6.el8_6.3RHSA-2024:0419

Fixed in:0:1.13.0-6.el8_6.3RHSA-2024:0419

Fixed in:0:1.13.0-6.el8_8.4RHSA-2024:0578

Fixed in:0:1.13.0-6.el8_8.4RHSA-2024:0578

Fixed in:0:1.13.0-6.el8_8.4RHSA-2024:0578

Fixed in:0:1.13.0-6.el8_6.3RHSA-2024:0419

Fixed in:0:1.13.0-6.el8_8.4RHSA-2024:0578

Fixed in:0:1.13.0-6.el8_6.3RHSA-2024:0419

Fixed in:0:1.13.0-6.el8_8.4RHSA-2024:0578

Fixed in:0:1.13.0-9.el8_9.1RHSA-2023:7207

Fixed in:0:1.13.0-9.el8_9.1RHSA-2023:7207

Fixed in:0:1.13.0-6.el8_8.4RHSA-2024:0578

Fixed in:0:1.13.0-9.el8_9.1RHSA-2023:7207

Fixed in:0:1.13.0-9.el8_9.1RHSA-2023:7207

c-aresRed Hat / RHEL

Fixed in:0:1.13.0-9.el8_9.1RHSA-2023:7207

Fixed in:0:1.13.0-9.el8_9.1RHSA-2023:7207

Fixed in:0:1.13.0-9.el8_9.1RHSA-2023:7207

Fixed in:0:1.13.0-9.el8_9.1RHSA-2023:7207

Fixed in:0:1.13.0-6.el8_8.4RHSA-2024:0578

Fixed in:0:1.13.0-6.el8_8.4RHSA-2024:0578

Fixed in:0:1.13.0-6.el8_8.4RHSA-2024:0578

Fixed in:0:1.13.0-6.el8_6.3RHSA-2024:0419

Fixed in:0:1.13.0-6.el8_6.3RHSA-2024:0419

Fixed in:0:1.13.0-6.el8_8.4RHSA-2024:0578

Fixed in:0:1.13.0-6.el8_6.3RHSA-2024:0419

Fixed in:0:1.13.0-6.el8_6.3RHSA-2024:0419

Fixed in:0:1.13.0-6.el8_8.4RHSA-2024:0578

Fixed in:0:1.13.0-6.el8_6.3RHSA-2024:0419

Fixed in:0:1.13.0-6.el8_6.3RHSA-2024:0419

Fixed in:0:1.13.0-6.el8_8.4RHSA-2024:0578

Fixed in:0:1.13.0-9.el8_9.1RHSA-2023:7207

Fixed in:0:1.13.0-9.el8_9.1RHSA-2023:7207

c-ares-debuginfoRed Hat / RHEL

Fixed in:0:1.13.0-6.el8_8.4RHSA-2024:0578

Fixed in:0:1.13.0-6.el8_8.4RHSA-2024:0578

Fixed in:0:1.13.0-6.el8_8.4RHSA-2024:0578

Fixed in:0:1.13.0-6.el8_8.4RHSA-2024:0578

Fixed in:0:1.13.0-6.el8_8.4RHSA-2024:0578

Fixed in:0:1.13.0-9.el8_9.1RHSA-2023:7207

Fixed in:0:1.13.0-9.el8_9.1RHSA-2023:7207

Fixed in:0:1.13.0-9.el8_9.1RHSA-2023:7207

Fixed in:0:1.13.0-9.el8_9.1RHSA-2023:7207

Fixed in:0:1.13.0-9.el8_9.1RHSA-2023:7207

Fixed in:0:1.13.0-6.el8_6.3RHSA-2024:0419

Fixed in:0:1.13.0-6.el8_6.3RHSA-2024:0419

Fixed in:0:1.13.0-6.el8_6.3RHSA-2024:0419

Fixed in:0:1.13.0-6.el8_6.3RHSA-2024:0419

Fixed in:0:1.13.0-6.el8_6.3RHSA-2024:0419

c-ares-debuginfoRocky

Fixed in:0:1.13.0-6.el8_8.4RHSA-2024:0578

Fixed in:0:1.13.0-6.el8_8.4RHSA-2024:0578

Fixed in:0:1.13.0-6.el8_8.4RHSA-2024:0578

Fixed in:0:1.13.0-6.el8_8.4RHSA-2024:0578

Fixed in:0:1.13.0-6.el8_8.4RHSA-2024:0578

Fixed in:0:1.13.0-9.el8_9.1RHSA-2023:7207

Fixed in:0:1.13.0-9.el8_9.1RHSA-2023:7207

Fixed in:0:1.13.0-9.el8_9.1RHSA-2023:7207

Fixed in:0:1.13.0-9.el8_9.1RHSA-2023:7207

Fixed in:0:1.13.0-9.el8_9.1RHSA-2023:7207

Fixed in:0:1.13.0-6.el8_6.3RHSA-2024:0419

Fixed in:0:1.13.0-6.el8_6.3RHSA-2024:0419

Fixed in:0:1.13.0-6.el8_6.3RHSA-2024:0419

Fixed in:0:1.13.0-6.el8_6.3RHSA-2024:0419

Fixed in:0:1.13.0-6.el8_6.3RHSA-2024:0419

c-ares-debugsourceRocky

Fixed in:0:1.13.0-9.el8_9.1RHSA-2023:7207

Fixed in:0:1.13.0-6.el8_6.3RHSA-2024:0419

Fixed in:0:1.13.0-9.el8_9.1RHSA-2023:7207

Fixed in:0:1.13.0-6.el8_8.4RHSA-2024:0578

Fixed in:0:1.13.0-9.el8_9.1RHSA-2023:7207

Fixed in:0:1.13.0-9.el8_9.1RHSA-2023:7207

Fixed in:0:1.13.0-6.el8_8.4RHSA-2024:0578

Fixed in:0:1.13.0-6.el8_8.4RHSA-2024:0578

Fixed in:0:1.13.0-6.el8_6.3RHSA-2024:0419

Fixed in:0:1.13.0-6.el8_8.4RHSA-2024:0578

Fixed in:0:1.13.0-6.el8_6.3RHSA-2024:0419

Fixed in:0:1.13.0-6.el8_6.3RHSA-2024:0419

Fixed in:0:1.13.0-6.el8_6.3RHSA-2024:0419

Fixed in:0:1.13.0-9.el8_9.1RHSA-2023:7207

Fixed in:0:1.13.0-6.el8_8.4RHSA-2024:0578

c-ares-debugsourceRed Hat / RHEL

Fixed in:0:1.13.0-6.el8_8.4RHSA-2024:0578

Fixed in:0:1.13.0-6.el8_6.3RHSA-2024:0419

Fixed in:0:1.13.0-6.el8_6.3RHSA-2024:0419

Fixed in:0:1.13.0-6.el8_8.4RHSA-2024:0578

Fixed in:0:1.13.0-6.el8_6.3RHSA-2024:0419

Fixed in:0:1.13.0-6.el8_8.4RHSA-2024:0578

Fixed in:0:1.13.0-6.el8_6.3RHSA-2024:0419

Fixed in:0:1.13.0-6.el8_6.3RHSA-2024:0419

Fixed in:0:1.13.0-6.el8_8.4RHSA-2024:0578

Fixed in:0:1.13.0-6.el8_8.4RHSA-2024:0578

Fixed in:0:1.13.0-9.el8_9.1RHSA-2023:7207

Fixed in:0:1.13.0-9.el8_9.1RHSA-2023:7207

Fixed in:0:1.13.0-9.el8_9.1RHSA-2023:7207

Fixed in:0:1.13.0-9.el8_9.1RHSA-2023:7207

Fixed in:0:1.13.0-9.el8_9.1RHSA-2023:7207

c-ares-develRed Hat / RHEL

Fixed in:0:1.13.0-9.el8_9.1RHSA-2023:7207

Fixed in:0:1.13.0-9.el8_9.1RHSA-2023:7207

Fixed in:0:1.13.0-6.el8_8.4RHSA-2024:0578

Fixed in:0:1.13.0-6.el8_6.3RHSA-2024:0419

Fixed in:0:1.13.0-6.el8_8.4RHSA-2024:0578

Fixed in:0:1.13.0-6.el8_6.3RHSA-2024:0419

Fixed in:0:1.13.0-9.el8_9.1RHSA-2023:7207

Fixed in:0:1.13.0-6.el8_8.4RHSA-2024:0578

Fixed in:0:1.13.0-9.el8_9.1RHSA-2023:7207

Fixed in:0:1.13.0-6.el8_6.3RHSA-2024:0419

Fixed in:0:1.13.0-6.el8_8.4RHSA-2024:0578

Fixed in:0:1.13.0-6.el8_6.3RHSA-2024:0419

Fixed in:0:1.13.0-9.el8_9.1RHSA-2023:7207

Fixed in:0:1.13.0-6.el8_8.4RHSA-2024:0578

Fixed in:0:1.13.0-6.el8_6.3RHSA-2024:0419

c-ares-develRocky

Fixed in:0:1.13.0-6.el8_6.3RHSA-2024:0419

Fixed in:0:1.13.0-6.el8_8.4RHSA-2024:0578

Fixed in:0:1.13.0-9.el8_9.1RHSA-2023:7207

Fixed in:0:1.13.0-9.el8_9.1RHSA-2023:7207

Fixed in:0:1.13.0-9.el8_9.1RHSA-2023:7207

Fixed in:0:1.13.0-6.el8_8.4RHSA-2024:0578

Fixed in:0:1.13.0-9.el8_9.1RHSA-2023:7207

Fixed in:0:1.13.0-6.el8_6.3RHSA-2024:0419

Fixed in:0:1.13.0-6.el8_6.3RHSA-2024:0419

Fixed in:0:1.13.0-6.el8_8.4RHSA-2024:0578

Fixed in:0:1.13.0-6.el8_8.4RHSA-2024:0578

Fixed in:0:1.13.0-9.el8_9.1RHSA-2023:7207

Fixed in:0:1.13.0-6.el8_6.3RHSA-2024:0419

Fixed in:0:1.13.0-6.el8_8.4RHSA-2024:0578

Fixed in:0:1.13.0-6.el8_6.3RHSA-2024:0419

c-aresUbuntu

Fixed in:1.15.0-1ubuntu0.4USN-6376-1

libc-ares2Ubuntu

Fixed in:1.15.0-1ubuntu0.4USN-6376-1

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityHigh

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityNone

AvailabilityHigh

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

Exploit Intelligence

0.84%probability of exploitation in 30 days

53rdpercentile

Moderate risk: more likely to be exploited than 53% of all known CVEs.

References

Patch1

github.com

Third-Party Advisory1

lists.debian.org

Related Vulnerabilities

Other CWE-125 (Out-of-bounds Read) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2014-0160	High	7.5	100%	KEV	Fix
CVE-2025-5777	High	7.5	100%	KEV + Ransom	Fix
CVE-2021-4034	High	7.8	95%	KEV	Fix
CVE-2023-21769	High	7.5	92%	-	Fix
CVE-2023-49285	High	8.6	89%	-	Fix
CVE-2020-8794	Critical	9.8	89%	-	Fix

Embed a live status badge for CVE-2020-22217

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.