What is the CVSS score of CVE-2022-27781?

CVE-2022-27781 has a CVSS 3.1 base score of 7.5 (High). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H. EPSS exploitation probability: 0.1%.

Is there a public PoC exploit available for CVE-2022-27781?

Yes, a public proof-of-concept exploit is available for CVE-2022-27781. Prioritise patching immediately. EPSS: 0.1%.

CVE-2022-27781

HIGH

Uncontrolled Resource Consumption (CWE-400)

2022-06-02 support@hackerone.com

Denial Of Service Bootstrap

7.5

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

7.5 HIGH

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Lifecycle Timeline

CVE Published

Jun 02, 2022 - 14:15 cve.org

HIGH 7.5

DescriptionCVE.org

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.

AnalysisAI

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. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

Technical ContextAI

This vulnerability is classified as Uncontrolled Resource Consumption (CWE-400), which allows attackers to cause denial of service by exhausting system resources. 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. Affected products include: Haxx Curl, Debian Debian Linux, Netapp Hci Bootstrap Os, Netapp Clustered Data Ontap, Netapp Solidfire\, Enterprise Sds \& Hci Storage Node.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Implement rate limiting, set resource quotas, validate input sizes, use timeouts.