7.5
HIGH
CVE-2023-32067
c-ares Denial of Service Shutdown Vulnerability
Description

c-ares is an asynchronous resolver library. c-ares is vulnerable to denial of service. If a target resolver sends a query, the attacker forges a malformed UDP packet with a length of 0 and returns them to the target resolver. The target resolver erroneously interprets the 0 length as a graceful shutdown of the connection. This issue has been patched in version 1.19.1.

INFO

Published Date :

May 25, 2023, 11:15 p.m.

Last Modified :

June 10, 2024, 6:15 p.m.

Remotely Exploitable :

Yes !

Impact Score :

3.6

Exploitability Score :

3.9
Affected Products

The following products are affected by CVE-2023-32067 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Fedoraproject fedora
1 Debian debian_linux
1 C-ares_project c-ares
1 C-ares c-ares

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2023-32067 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2023-32067 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by [email protected]

    Jun. 10, 2024

    Action Type Old Value New Value
    Added Reference GitHub, Inc. https://security.netapp.com/advisory/ntap-20240605-0004/ [No types assigned]
  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • Modified Analysis by [email protected]

    Oct. 31, 2023

    Action Type Old Value New Value
    Changed Reference Type https://lists.debian.org/debian-lts-announce/2023/06/msg00034.html No Types Assigned https://lists.debian.org/debian-lts-announce/2023/06/msg00034.html Mailing List
    Changed Reference Type https://security.gentoo.org/glsa/202310-09 No Types Assigned https://security.gentoo.org/glsa/202310-09 Third Party Advisory
    Changed Reference Type https://www.debian.org/security/2023/dsa-5419 No Types Assigned https://www.debian.org/security/2023/dsa-5419 Third Party Advisory
    Removed CWE NIST CWE-400
    Added CWE NIST NVD-CWE-noinfo
    Added CPE Configuration OR *cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* *cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*
  • CVE Modified by [email protected]

    Oct. 08, 2023

    Action Type Old Value New Value
    Added Reference https://security.gentoo.org/glsa/202310-09 [No Types Assigned]
  • CVE Modified by [email protected]

    Jun. 26, 2023

    Action Type Old Value New Value
    Added Reference https://lists.debian.org/debian-lts-announce/2023/06/msg00034.html [No Types Assigned]
  • CVE Modified by [email protected]

    Jun. 07, 2023

    Action Type Old Value New Value
    Added Reference https://www.debian.org/security/2023/dsa-5419 [No Types Assigned]
  • Initial Analysis by [email protected]

    Jun. 01, 2023

    Action Type Old Value New Value
    Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
    Changed Reference Type https://github.com/c-ares/c-ares/releases/tag/cares-1_19_1 No Types Assigned https://github.com/c-ares/c-ares/releases/tag/cares-1_19_1 Release Notes
    Changed Reference Type https://github.com/c-ares/c-ares/security/advisories/GHSA-9g78-jv2r-p7vc No Types Assigned https://github.com/c-ares/c-ares/security/advisories/GHSA-9g78-jv2r-p7vc Third Party Advisory
    Changed Reference Type https://lists.fedoraproject.org/archives/list/[email protected]/message/B5Z5XFNXTNPTCBBVXFDNZQVLLIE6VRBY/ No Types Assigned https://lists.fedoraproject.org/archives/list/[email protected]/message/B5Z5XFNXTNPTCBBVXFDNZQVLLIE6VRBY/ Mailing List, Third Party Advisory
    Changed Reference Type https://lists.fedoraproject.org/archives/list/[email protected]/message/UBFWILTA33LOSV23P44FGTQQIDRJHIY7/ No Types Assigned https://lists.fedoraproject.org/archives/list/[email protected]/message/UBFWILTA33LOSV23P44FGTQQIDRJHIY7/ Mailing List, Third Party Advisory
    Added CWE NIST CWE-400
    Added CPE Configuration OR *cpe:2.3:a:c-ares_project:c-ares:*:*:*:*:*:*:*:* versions up to (excluding) 1.19.1
    Added CPE Configuration OR *cpe:2.3:o:fedoraproject:fedora:37:*:*:*:*:*:*:* *cpe:2.3:o:fedoraproject:fedora:38:*:*:*:*:*:*:*
  • CVE Modified by [email protected]

    May. 28, 2023

    Action Type Old Value New Value
    Added Reference https://lists.fedoraproject.org/archives/list/[email protected]/message/UBFWILTA33LOSV23P44FGTQQIDRJHIY7/ [No Types Assigned]
  • CVE Modified by [email protected]

    May. 26, 2023

    Action Type Old Value New Value
    Added Reference https://lists.fedoraproject.org/archives/list/[email protected]/message/B5Z5XFNXTNPTCBBVXFDNZQVLLIE6VRBY/ [No Types Assigned]
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2023-32067 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2023-32067 weaknesses.

Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

0.15 }} 0.02%

score

0.52474

percentile

CVSS31 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability