CVE Tools
Sign in

CVE-2023-31130

Buffer Underwrite in ares_inet_net_pton()

Published: May 25, 2023Updated: Feb 13, 2025 Sources: CVE List NVD BDU csafCWE-124
NVD MITRE
4.1CVSSMEDIUM
EPSS Score
0.3%
Top 75.4%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

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.

CVSS Vector Breakdown

AV:LAC:HPR:HUI:NS:UC:NI:NA:H
Exploitability
AV:LAttack Vector
Local
AC:HAttack Complexity
High
PR:HPrivileges Required
High
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:NIntegrity
None
A:HAvailability
High
Open in CVSS calculator →

Weaknesses

CWE-124CWE-787

Affected Products

c-aresc-ares project
Library
OSS Libraries / generic-library
fedorafedoraproject
On-premOS
Operating Systems / linux-distro
debian linuxdebian
On-premOS
Operating Systems / linux-distro
Debian GNU/LinuxСообщество свободного программного обеспечения
On-premOS
Operating Systems / linux-distro
РЕД ОСООО «Ред Софт»
On-premOS
Operating Systems / linux-distro
c-ares projectoss-projectUSOSS Librariesaka c-ares
fedoraprojectoss-projectUSOperating Systemsaka fedora project
debianoss-projectGBOperating Systemsaka debian gnu/linux
сообщество свободного программного обеспеченияoss-projectOperating Systemsaka сообщество свободного программного обеспечения, fsf
ооо «ред софт»commercialRUOperating Systemsaka red soft
and 6 more affected products View all →

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

Exploitability

Official Patch Available

MITRE ATT&CK

2 techniques
Initial Access
Privilege Escalation
View detailed technique mapping

References

https://github.com/c-ares/c-ares/releases/tag/cares-1_19_1
github.com
https://github.com/c-ares/c-ares/security/advisories/GHSA-x6mf-cxr9-8q6v
github.com
https://lists.debian.org/debian-lts-announce/2023/06/msg00034.html
lists.debian.org
and 29 more references View all →

Timeline

Published
May 25, 2023
Last Updated
Feb 13, 2025

Unlock Complete Vulnerability Intelligence

Get the full picture for CVE-2023-31130 and every CVE in our database. Create a free account — no credit card required.

Create Free Account
Plain-language analysis
Impact assessment and exploitation scenario in plain English
Attack graph visualization
Interactive attack path and kill chain mapping
Exploit details & PoC links
ExploitDB, Metasploit, GitHub PoCs with direct links
Nuclei scanner templates
Ready-to-use vulnerability scanner templates
Full remediation guide
Patch instructions, workarounds, and compliance impact
Interactive AI chat
Ask questions about this vulnerability in natural language
Related vulnerabilities
Semantically similar CVEs and attack patterns
REST API & MCP access
Integrate vulnerability data into your workflows