Description
Jenkins GitHub Plugin 1.34.4 and earlier uses a non-constant time comparison function when checking whether the provided and computed webhook signatures are equal, allowing attackers to use statistical methods to obtain a valid webhook signature.
Remediation
References
http://www.openwall.com/lists/oss-security/2022/07/27/1
https://www.jenkins.io/security/advisory/2022-07-27/#SECURITY-1849