CVE-2022-27781
HIGHCVSS 7.5/10EPSS 2.43%
Last modified
CVE-2022-27781 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. libcurl provides the `CURLOPT_CERTINFO` option to allow applications torequest details to be returned about a server's certificate chain.Due to an erroneous function, a malicious server could make libcurl built withNSS get stuck in a never-ending busy-loop when trying to retrieve thatinformation.. EPSS estimates a 2.43% chance of exploitation in the next 30 days.
Description
libcurl provides the `CURLOPT_CERTINFO` option to allow applications torequest details to be returned about a server's certificate chain.Due to an erroneous function, a malicious server could make libcurl built withNSS get stuck in a never-ending busy-loop when trying to retrieve thatinformation.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Haxx | Curl | < 7.83.1 |
| Debian | Debian Linux | 10.0 |
| Debian | Debian Linux | 11.0 |
| Netapp | Hci Bootstrap Os | All versions |
| Netapp | Clustered Data Ontap | All versions |
| Netapp | Solidfire\, Enterprise Sds \& Hci Storage Node | All versions |
| Netapp | Solidfire \& Hci Management Node | All versions |
| Netapp | Hci Compute Node | All versions |
| Netapp | H300s Firmware | All versions |
| Netapp | H500s Firmware | All versions |
| Netapp | H700s Firmware | All versions |
| Netapp | H410s Firmware | All versions |
| Splunk | Universal Forwarder | >= 8.2.0, < 8.2.12 |
| Splunk | Universal Forwarder | >= 9.0.0, < 9.0.6 |
| Splunk | Universal Forwarder | 9.1.0 |
References
- https://hackerone.com/reports/1555441Exploit, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2022/08/msg00017.htmlMailing List, Third Party Advisory
- https://security.gentoo.org/glsa/202212-01Third Party Advisory
- https://security.netapp.com/advisory/ntap-20220609-0009/Third Party Advisory
- https://www.debian.org/security/2022/dsa-5197Mailing List, Third Party Advisory
- https://hackerone.com/reports/1555441Exploit, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2022/08/msg00017.htmlMailing List, Third Party Advisory
- https://security.gentoo.org/glsa/202212-01Third Party Advisory
- https://security.netapp.com/advisory/ntap-20220609-0009/Third Party Advisory
- https://www.debian.org/security/2022/dsa-5197Mailing List, Third Party Advisory
- https://hackerone.com/reports/1555441Exploit, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2022-27781?
libcurl provides the `CURLOPT_CERTINFO` option to allow applications torequest details to be returned about a server's certificate chain.Due to an erroneous function, a malicious server could make libcurl built withNSS get stuck in a never-ending busy-loop when trying to retrieve thatinformation.
How severe is CVE-2022-27781?
CVE-2022-27781 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 2.43% probability of exploitation in the next 30 days.
How do I fix CVE-2022-27781?
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.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
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Are you affected by CVE-2022-27781?
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