An issue was discovered in Prosody before 0.11.9. It does...

Vulnerability Description

An issue was discovered in Prosody before 0.11.9. It does not use a constant-time algorithm for comparing certain secret strings when running under Lua 5.2 or later. This can potentially be used in a timing attack to reveal the contents of secret strings to an attacker.

References

• https://blog.prosody.im/prosody-0.11.9-released/
• http://www.openwall.com/lists/oss-security/2021/05/13/1
• http://www.openwall.com/lists/oss-security/2021/05/14/2
• https://www.debian.org/security/2021/dsa-4916
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6MFFBZWXKPZEVZNQSVJNCUE7WRF3T7DG/
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LWJ2DG2DFJOEFEWOUN26IMYYWGSA2ZEE/
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GUN63AHEWB2WRROJHU3BVJRWLONCT2B7/
• https://security.gentoo.org/glsa/202105-15
• https://lists.debian.org/debian-lts-announce/2021/06/msg00016.html
• https://lists.debian.org/debian-lts-announce/2021/06/msg00018.html