Vulnerability Report

CVE-2023-31130

Title: Buffer Underflow in c-ares ares_inet_net_pton()

Buffer Underflow

Proof Of Concept

No public PoC currently indexed for CVE-2023-31130.

CWE Category CWE-787
Published Date May 25, 2023
Modified Date Feb 13, 2025
Exploit Status Not Found
Score 4.1 CVSS v3.1
Exploit Probability (EPSS)
0.01%

Vulnerability Summary

CVE-2023-31130: 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.

Impacted Vendors

D
daniel_stenberg 1
C
c-ares_project 1

Reference Links

https://github.com/c-ares/c-ares/releases/tag/cares-1_19_1 https://github.com/c-ares/c-ares/security/advisories/GHSA-x6mf-cxr9-8q6v https://lists.debian.org/debian-lts-announce/2023/06/msg00034.html https://lists.fedoraproject.org/archives/list/[email protected]/message/B5Z5XFNXTNPTCBBVXFDNZQVLLIE6VRBY/ https://lists.fedoraproject.org/archives/list/[email protected]/message/UBFWILTA33LOSV23P44FGTQQIDRJHIY7/ https://security.gentoo.org/glsa/202310-09 https://security.netapp.com/advisory/ntap-20240605-0005/ https://www.debian.org/security/2023/dsa-5419 https://github.com/c-ares/c-ares/releases/tag/cares-1_19_1 https://github.com/c-ares/c-ares/security/advisories/GHSA-x6mf-cxr9-8q6v https://lists.debian.org/debian-lts-announce/2023/06/msg00034.html https://lists.fedoraproject.org/archives/list/[email protected]/message/B5Z5XFNXTNPTCBBVXFDNZQVLLIE6VRBY/ https://lists.fedoraproject.org/archives/list/[email protected]/message/UBFWILTA33LOSV23P44FGTQQIDRJHIY7/ https://security.gentoo.org/glsa/202310-09 https://security.netapp.com/advisory/ntap-20240605-0005/ https://www.debian.org/security/2023/dsa-5419
CVSS v3.1
Source Entity [email protected]
Severity MEDIUM
4.1
Attack Vector
LOCAL
Complexity
HIGH
Privileges
N/A
Interaction
NONE
Confidentiality
N/A
Integrity
N/A
Availability
N/A
Scope
UNCHANGED
RAW VECTOR CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H
CVSS v3.1
Source Entity [email protected]
Severity MEDIUM
6.4
Attack Vector
LOCAL
Complexity
HIGH
Privileges
N/A
Interaction
NONE
Confidentiality
N/A
Integrity
N/A
Availability
N/A
Scope
UNCHANGED
RAW VECTOR CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H

Associated Attack Patterns (CAPEC)

Total: Patterns

CVE-2023-31130 Exploits & PoCs (Proof Of Concept)

No public PoCs found in our database for this CVE.

MODIFIED

Vulnerability data or affected products updated.

PUBLISHED

Vulnerability first announced in NVD.

Attack Vector Matrix

Access Vector LOCAL
Complexity HIGH
Privileges N/A
Interaction NONE
CVSS Vector String CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H

Affected Stack

No specific products linked.