CVE-2022-4904

Name: CVE-2022-4904
Creator: NVD / NIST
Published: 2023-03-06T23:15:11.39+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.6/10EPSS 1.23%

Last modified Jun 17, 2026

CVE-2022-4904 is a high-severity vulnerability rated 8.6/10 on the CVSS scale. A flaw was found in the c-ares package. The ares_set_sortlist is missing checks about the validity of the input string, which allows a possible arbitrary length stack overflow. EPSS estimates a 1.23% chance of exploitation in the next 30 days.

Description

A flaw was found in the c-ares package. The ares_set_sortlist is missing checks about the validity of the input string, which allows a possible arbitrary length stack overflow. This issue may cause a denial of service or a limited impact on confidentiality and integrity.

Metrics

CVSS 3.1

8.6/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H

EPSS Probability

1.23%

65.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
C-Ares Project	C-Ares	< 1.19.0
Redhat	Software Collections	All versions
Redhat	Enterprise Linux	8.0
Redhat	Enterprise Linux	9.0
Fedoraproject	Fedora	36

References

https://bugzilla.redhat.com/show_bug.cgi?id=2168631Issue Tracking, Third Party Advisory
https://github.com/c-ares/c-ares/issues/496Exploit, Issue Tracking
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/33LDNS6RPOPP36Z4MPWXALUQZXJCWJS2/
https://security.gentoo.org/glsa/202401-02
https://bugzilla.redhat.com/show_bug.cgi?id=2168631Issue Tracking, Third Party Advisory
https://github.com/c-ares/c-ares/issues/496Exploit, Issue Tracking
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/33LDNS6RPOPP36Z4MPWXALUQZXJCWJS2/
https://security.gentoo.org/glsa/202401-02

Timeline

Published: Mar 6, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2022-4904?

How severe is CVE-2022-4904?

CVE-2022-4904 has a CVSS score of 8.6/10 (HIGH severity). The EPSS model estimates a 1.23% probability of exploitation in the next 30 days.

How do I fix CVE-2022-4904?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2022-4904?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST