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CVE-2022-4904

21
FAUCET Score

CVE-2022-4904 is a stack overflow vulnerability in the c-ares package, specifically within the ares_set_sortlist function due to insufficient input validation. This flaw affects c-ares_project, fedoraproject, and redhat products. With a CVSS score of 8.6 (High), it can be exploited remotely with low complexity, potentially leading to a denial of service and limited impact on confidentiality and integrity. There is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
< 1.19.0CPE matchmatch criteria
cpe:2.3:a:c-ares_project:c-ares:*:*:*:*:*:*:*:*
Range not provided by sourceCPE matchmatch criteria
cpe:2.3:a:redhat:software_collections:-:*:*:*:*:*:*:*
8.0CPE matchmatch criteria
cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*
9.0CPE matchmatch criteria
cpe:2.3:o:redhat:enterprise_linux:9.0:*:*:*:*:*:*:*
36CPE matchmatch criteria
cpe:2.3:o:fedoraproject:fedora:36:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

8.6HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
4.7
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.22%
Probability of exploitation in next 30 days
EPSS Percentile
65.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
This CVE's current EPSS score of 0.0122 is in the 45th percentile among its peer group of 51,485 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (37)

microsoftpatch availablevia msrc
Product: cbl2 grpc 1.42.0-11 on CBL Mariner 2.0Fixed in: 1.42.0-11
microsoftpatch availablevia msrc
Product: CBL Mariner 2.0 ARMFixed in: 16.20.1-2
microsoftpatch availablevia msrc
Product: CBL Mariner 2.0 ARMFixed in: 21.1.2-1
microsoftpatch availablevia msrc
Product: CBL Mariner 1.0 x64Fixed in: 1.19.0-1
microsoftpatch availablevia msrc
Product: CBL Mariner 1.0 ARMFixed in: 1.19.0-1
microsoftpatch availablevia msrc
Product: Azure Linux 3.0 x64Fixed in: 1.62.0-2
microsoftpatch availablevia msrc
Product: Azure Linux 3.0 ARMFixed in: 1.62.0-2
microsoftpatch availablevia msrc
Product: azl3 grpc 1.42.0-7 on Azure Linux 3.0Fixed in: 1.62.0-2
microsoftpatch availablevia msrc
Product: azl3 grpc 1.62.0-2 on Azure Linux 3.0Fixed in: 1.62.0-2
microsoftpatch availablevia msrc
Product: cm1 python-gevent 1.3.6-5 on CBL Mariner 1.0Fixed in: 1.3.6-5
microsoftpatch availablevia msrc
Product: cm1 nodejs 14.21.3-1 on CBL Mariner 1.0Fixed in: 14.21.3-1
microsoftpatch availablevia msrc
Product: cm1 grpc 1.35.0-9 on CBL Mariner 1.0Fixed in: 1.35.0-9
microsoftpatch availablevia msrc
Product: cm1 c-ares 1.19.0-1 on CBL Mariner 1.0Fixed in: 1.19.0-1
microsoftpatch availablevia msrc
Product: cbl2 c-ares 1.19.0-1 on CBL Mariner 2.0Fixed in: 1.19.0-1
microsoftpatch availablevia msrc
Product: cbl2 rubygem-mini_portile2 2.8.0-1 on CBL Mariner 2.0Fixed in: 2.8.0-1
microsoftpatch availablevia msrc
Product: cbl2 python-gevent 21.1.2-3 on CBL Mariner 2.0Fixed in: 21.1.2-3
microsoftpatch availablevia msrc
Product: cbl2 nodejs 16.20.1-2 on CBL Mariner 2.0Fixed in: 16.20.1-2
microsoftpatch availablevia msrc
Product: CBL Mariner 2.0 x64Fixed in: 1.19.0-1
microsoftpatch availablevia msrc
Product: CBL Mariner 2.0 x64Fixed in: 16.20.1-2
microsoftpatch availablevia msrc
Product: CBL Mariner 2.0 x64Fixed in: 21.1.2-1
microsoftpatch availablevia msrc
Product: CBL Mariner 2.0 ARMFixed in: 1.19.0-1
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: nodejs:16-8070020230314140722.bd1311ed
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: nodejs:18-8080020230607122508.63b34585
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: c-ares-0:1.13.0-8.el8
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8.4 Extended Update SupportFixed in: nodejs:14-8040020230306170312.522a0ee4
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8.6 Extended Update SupportFixed in: nodejs:14-8060020230306170237.ad008a3a
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8.8 Extended Update SupportFixed in: c-ares-0:1.13.0-6.el8_8.3
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 9Fixed in: nodejs:18-9020020230327152102.rhel9
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 9Fixed in: nodejs-1:16.19.1-1.el9_2
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 9Fixed in: c-ares-0:1.19.1-1.el9
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 9.0 Extended Update SupportFixed in: nodejs-1:16.20.2-1.el9_0
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 9.0 Extended Update SupportFixed in: c-ares-0:1.17.1-5.el9_0.2
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 9.2 Extended Update SupportFixed in: c-ares-0:1.17.1-5.el9_2.2
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Software Collections for Red Hat Enterprise Linux 7Fixed in: rh-nodejs14-0:3.6-2.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Software Collections for Red Hat Enterprise Linux 7Fixed in: rh-nodejs14-nodejs-0:14.21.3-2.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: nodejs:14-8070020230306170042.bd1311ed
View patch
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: c-ares

Vendor Advisories (3)

microsoft2024-Jun/CVE-2022-4904

CVE-2022-4904

Jun 11, 2024
microsoft2023-Mar/CVE-2022-4904Important

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.

Mar 14, 2023
redhatCVE-2022-4904Moderate

c-ares: buffer overflow in config_sortlist() due to missing string length check

Dec 13, 2022

References

bugzilla.redhat.com / show_bug.cgi
Issue TrackingThird Party Advisory
github.com / c-ares/c-ares/issues/496
ExploitIssue Tracking
lists.fedoraproject.org / archives/list/package-announce%40lists.fedoraproject.org/message/33LDNS6RPOPP36Z4MPWXALUQZXJCWJS2
security.gentoo.org / glsa/202401-02