Attacker Value
Unknown
(0 users assessed)
Exploitability
Unknown
(0 users assessed)
User Interaction
None
Privileges Required
High
Attack Vector
Local
0

CVE-2023-31130

Disclosure Date: May 25, 2023 •
CVE-2023-31130 CVSS v3 Base Score: 6.4
Add MITRE ATT&CK tactics and techniques that apply to this CVE.

Description

c-ares is an asynchronous resolver library. ares_inet_net_pton() is vulnerable to a buffer underflow for certain ipv6 addresses, in particular “0::00:00:00/2” was found to cause an issue. C-ares only uses this function internally for configuration purposes which would require an administrator to configure such an address via ares_set_sortlist(). However, users may externally use ares_inet_net_pton() for other purposes and thus be vulnerable to more severe issues. This issue has been fixed in 1.19.1.

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CVSS V3 Severity and Metrics
Base Score:
6.4 Medium
Impact Score:
5.9
Exploitability Score:
0.5
Vector:
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
Attack Vector (AV):
Local
Attack Complexity (AC):
High
Privileges Required (PR):
High
User Interaction (UI):
None
Scope (S):
Unchanged
Confidentiality (C):
High
Integrity (I):
High
Availability (A):
High

General Information

Offensive Application
Unknown
Utility Class
Unknown
Ports
Unknown
OS
Unknown
Vulnerable Versions
c-ares < 1.19.1
Prerequisites
Unknown
Discovered By
Unknown
PoC Author
Unknown
Metasploit Module
Unknown
Reporter
Unknown

Vendors

  • c-ares project,
  • debian,
  • fedoraproject

Products

  • c-ares,
  • debian linux 10.0,
  • debian linux 11.0,
  • fedora 37,
  • fedora 38
Technical Analysis