SB2023061443 - Denial of service in Diffie-Hellman Key Agreement Protocol
Published: June 14, 2023
Security Bulletin ID
SB2023061443
Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Resource exhaustion (CVE-ID: CVE-2022-40735)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to usage of unnecessarily expensive calculations. A remote attacker can trigger resource exhaustion and perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.
References
- https://github.com/mozilla/ssl-config-generator/issues/162
- https://link.springer.com/content/pdf/10.1007/3-540-68339-9_29.pdf
- https://nvlpubs.nist.gov/nistpubs/SpecialPublications/NIST.SP.800-57pt1r5.pdf
- https://www.researchgate.net/profile/Anton-Stiglic-2/publication/2401745_Security_Issues_in_the_Diffie-Hellman_Key_Agreement_Protocol/links/546c144f0cf20dedafd53e7e/Security-Issues-in-the-Diffie-Hellman-Key-Agreement-Protocol.pdf
- https://gist.github.com/c0r0n3r/9455ddcab985c50fd1912eabf26e058b
- https://www.rfc-editor.org/rfc/rfc4419
- https://www.rfc-editor.org/rfc/rfc7919#section-5.2
- https://www.rfc-editor.org/rfc/rfc3526
- https://raw.githubusercontent.com/CVEProject/cvelist/9d7fbbcabd3f44cfedc9e8807757d31ece85a2c6/2022/40xxx/CVE-2022-40735.json
- https://www.rfc-editor.org/rfc/rfc5114#section-4