CVE-2020-12783

Description

Exim through 4.93 has an out-of-bounds read in the SPA authenticator that could result in SPA/NTLM authentication bypass in auths/spa.c and auths/auth-spa.c.

References

https://www.debian.org/security/2020/dsa-4687

https://usn.ubuntu.com/4366-1/

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/M7Z5UG6ZIG32V7M4PP3BCC65C27EWK7G/

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/F6IQQ2SERFUD4WMRSX6XYDNK7Q4GPT7Y/

https://lists.debian.org/debian-lts-announce/2020/05/msg00017.html

https://git.exim.org/exim.git/commit/a04174dc2a84ae1008c23b6a7109e7fa3fb7b8b0

https://git.exim.org/exim.git/commit/57aa14b216432be381b6295c312065b2fd034f86

https://bugs.exim.org/show_bug.cgi?id=2571

http://www.openwall.com/lists/oss-security/2021/05/04/7

Details

Source: Mitre, NVD

Risk Information

CVSS v2

CVSS v3