high7.5
CVE-2020-12783
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.
Impact
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.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Exim | Exim | through 4.93 |
| Fedoraproject | Fedora | Versions 31, 32 |
| Debian | Debian Linux | Versions 8.0, 9.0, 10.0 |
| Canonical | Ubuntu Linux | Versions 14.04, 16.04, 18.04, 19.10, 20.04 |
Weakness classification
References
- NVD record
- CVE.org record
- http://www.openwall.com/lists/oss-security/2021/05/04/7
- https://bugs.exim.org/show_bug.cgi?id=2571
- https://git.exim.org/exim.git/commit/57aa14b216432be381b6295c312065b2fd034f86
- https://git.exim.org/exim.git/commit/a04174dc2a84ae1008c23b6a7109e7fa3fb7b8b0
- https://lists.debian.org/debian-lts-announce/2020/05/msg00017.html
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/F6IQQ2SERFUD4WMRSX6XYDNK7Q4GPT7Y/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/M7Z5UG6ZIG32V7M4PP3BCC65C27EWK7G/
- https://usn.ubuntu.com/4366-1/
- https://www.debian.org/security/2020/dsa-4687
- http://www.openwall.com/lists/oss-security/2021/05/04/7
- https://bugs.exim.org/show_bug.cgi?id=2571
- https://git.exim.org/exim.git/commit/57aa14b216432be381b6295c312065b2fd034f86
- https://git.exim.org/exim.git/commit/a04174dc2a84ae1008c23b6a7109e7fa3fb7b8b0
- https://lists.debian.org/debian-lts-announce/2020/05/msg00017.html
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/F6IQQ2SERFUD4WMRSX6XYDNK7Q4GPT7Y/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/M7Z5UG6ZIG32V7M4PP3BCC65C27EWK7G/
- https://usn.ubuntu.com/4366-1/
- https://www.debian.org/security/2020/dsa-4687