Mend.io Vulnerability Database

What is a CVE vulnerability ID? icon What is a WS vulnerability ID? icon What is an MSC vulnerability ID? icon
New vulnerability? Tell us about it!
icon

We found results for “”

CVE-2025-31498

Good to know:

icon

Date: April 8, 2025

c-ares use-after-free. Use after free() in read_answers() when process_answer() may re-enqueue a query either due to a DNS Cookie Failure or when the upstream server does not properly support EDNS, or possibly on TCP queries if the remote closed the connection immediately after a response.

Severity Score

Related Resources (9)

https://security.alpinelinux.org/vuln/CVE-2025-31498
https://seclists.org/oss-sec/2025/q2/27
https://nvd.nist.gov/vuln/detail/CVE-2025-31498
https://github.com/c-ares/c-ares/pull/821
https://github.com/c-ares/c-ares/security/advisories/GHSA-6hxc-62jh-p29v
http://www.openwall.com/lists/oss-security/2025/04/08/3
https://security-tracker.debian.org/tracker/CVE-2025-31498
https://github.com/c-ares/c-ares/commit/29d38719112639d8c0ba910254a3dd4f482ea2d1
https://www.mend.io/vulnerability-database/CVE-2025-31498

Severity Score

Weakness Type (CWE)

Use After Free

CWE-416

Top Fix

icon

Upgrade Version

Upgrade to version https://github.com/c-ares/c-ares.git - v1.34.5

Learn More

CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): HIGH
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): HIGH
Integrity (I): HIGH
Availability (A): HIGH

Do you need more information?

Contact Us