CVE-2020-22217

MEDIUM EPSS 53.2%
Published Aug 22, 20232y ago · Modified Jun 17, 20262w ago
5.9 CVSS 3.1
Medium
Find Similar
Published Aug 22, 2023 2y ago
Last Modified Jun 17, 2026 2w ago

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.

CVSS Details

Base Score
5.9
Exploitability
2.2
Impact
3.6
Vector string
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack Vector Network
Attack Complexity High
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality None
Integrity None
Availability High

Threat Intelligence

EPSS Exploit Probability
53.2% percentile
Exploit & Patch Status
Public Exploit Known
Patch Available

Weaknesses 1

CWE-125 Out-of-bounds Read Memory Safety

Affected Products 3

VendorProductVersionRange
c-aresc-ares1.16.1any
c-aresc-ares1.17.0any
debiandebian_linux10.0any

References 2

  • github.com https://github.com/c-ares/c-ares/issues/333
    ExploitIssue TrackingPatch
  • lists.debian.org https://lists.debian.org/debian-lts-announce/2023/09/msg00014.html
    Mailing ListThird Party Advisory

Remediation

  • github.com https://github.com/c-ares/c-ares/issues/333
    ExploitIssue TrackingPatch