HOMEVULNERABILITIESCVE-2022-4904
HIGH

CVE-2022-4904

CWE-20Published: March 6, 2023· Updated: Jun 17, 2026

8.6
CVSS v3.1

Official 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.

NVD Source

Technical Analysis

CVE-2022-4904 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in availability disruption (denial of service), with a CVSS base score of 8.6.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityLow
IntegrityLow
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H

Affected Vendors & Products

c-ares_project1 product(s)
c-ares
Fedora1 product(s)
fedora
Red Hat2 product(s)
software collectionsenterprise linux
Source: NVD CPE · 5 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

ADVISORYhttps://bugzilla.redhat.com/show_bug.cgi?id=2168631
ADVISORYhttps://bugzilla.redhat.com/show_bug.cgi?id=2168631

All References (8)

→
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

Quick Facts

CVE IDCVE-2022-4904
CVSS Score8.6 / 10
SeverityHIGH
WeaknessCWE-20
CISA KEVNo
Affected3 vendor(s)
PublishedMar 6, 2023

Related CVEs (CWE-20)

CVE-2008-1331
10.0
CVE-2007-6176
10.0
CVE-2007-6494
10.0
CVE-2008-6826
10.0
CVE-2003-1425
10.0
CVE-2008-6555
10.0

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2022-4904 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.
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