CVE-2023-32067
No exploitation reported by the sources we read.
- Published2023-05-25
- WeaknessCWE-400
Am I affected?
Debian, Ubuntu or Red Hat sometimes backport a fix without changing the upstream version number: such a version reads « to verify », never « affected ».With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.
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.
Timeline
dates in UTC- 2023-05-2523:15CVE publishedNVD
Observed activity
isMalicious corpus · updated 2026-10-23 21:37 UTCBlock these indicators
- Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2023-32067?format=txt
- CSV export: https://api.ismalicious.com/edl/cve/CVE-2023-32067?format=csv
- TAXII collection of exploited CVEs
- The EDL and CSV take an API key on the Pro plan.
Versions per branch
NVD · CISA-ADP| Branch | Affected | Fixed in | Source |
|---|---|---|---|
| 10.0 | = 10.0 | no fix published | NVD · CISA-ADP |
| 11.0 | = 11.0 | no fix published | NVD |
| Branch | Affected | Fixed in | Source |
|---|---|---|---|
| 37.x | = 37 | no fix published | NVD · CISA-ADP |
| 38.x | = 38 | no fix published | NVD · CISA-ADP |
| Branch | Affected | Fixed in | Source |
|---|---|---|---|
| 1.19 | < 1.19.1 | 1.19.1 | CISA-ADP |
1 more product in the sources.
as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.
Distribution builds and vendor advisories
Packages from OSV.dev and products from the vendors' CSAF advisories.
version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.
Packages
- c-aresAlmaLinux:9all versions · fixed in 1.17.1-5.el9_2.1and 1 other package
- c-aresAlmaLinux:8all versions · fixed in 1.13.0-6.el8_8.2and 1 other package
- nodejsAlmaLinux:9all versions · fixed in 1:16.19.1-2.el9_2and 3 other packages
- nodejsAlmaLinux:9all versions · fixed in 1:18.14.2-3.module_el9.2.0+30+e3312493and 3 other packages
- nodejsAlmaLinux:8all versions · fixed in 1:16.19.1-2.module_el8.8.0+3586+d4fc0b72and 3 other packages
- nodejsAlmaLinux:8all versions · fixed in 1:18.14.2-3.module_el8.8.0+3587+ee652244and 3 other packages
- nodejs-nodemonAlmaLinux:9all versions · fixed in 2.0.20-2.module_el9.2.0+29+de583a0b
- nodejs-nodemonAlmaLinux:8all versions · fixed in 2.0.20-2.module_el8.8.0+3587+ee652244
8 more package ranges on OSV.dev
Fix
Advisories and patches
- github.comRelease Notes
Detection
- Nuclei template
- none so far ProjectDiscovery
- Exploit-DB
- no entry Exploit-DB
- Proof-of-concept repositories
- none listed PoC-in-GitHub
Sources
Technical details
- CVSS v3 Vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- Published
- 2023-05-25
- Last Modified
- 2026-06-17
- NVD status
- Modified
Frequently asked questions
What is CVE-2023-32067?
Is CVE-2023-32067 actively exploited?
What is the CVSS score for CVE-2023-32067?
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Related vulnerabilities
Same product first, then the same vendor advisory and the same publication week.