[org.jenkins-ci.main:jenkins-core] Missing Authorization in Jenkins

FilePath#listFiles lists files outside directories that agents are allowed to access when following symbolic links in Jenkins 2.318 and earlier, LTS 2.303.2 and earlier.

References

• https://nvd.nist.gov/vuln/detail/CVE-2021-21695
• https://www.jenkins.io/security/advisory/2021-11-04/#SECURITY-2455
• http://www.openwall.com/lists/oss-security/2021/11/04/3
• https://github.com/advisories/GHSA-cvvm-4cr9-r436