CVEvulnerability
CVE-2020-12783
7.5 HIGH
Official page ↗
- Status
- Modified
- Published
- 2020-05-11
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 7.5 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
- CVSS 2.0 ([email protected])
- 5.0 MEDIUM — AV:N/AC:L/Au:N/C:P/I:N/A:N
- Weaknesses
- CWE-125
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.
Affected configurations
• exim exim (<= 4.93)
• fedoraproject fedora 31
• fedoraproject fedora 32
• debian debian linux 8.0
• debian debian linux 9.0
• debian debian linux 10.0
• canonical ubuntu linux 14.04
• canonical ubuntu linux 16.04
• canonical ubuntu linux 18.04
• canonical ubuntu linux 19.10
• canonical ubuntu linux 20.04
Related
Weakness · CWE (1)
- CWE-125 Out-of-bounds Read weakness
References
- http://www.openwall.com/lists/oss-security/2021/05/04/7 Exploit, Mailing List, Third Party Advisory
- https://bugs.exim.org/show_bug.cgi?id=2571 Third Party Advisory
- https://git.exim.org/exim.git/commit/57aa14b216432be381b6295c312065b2fd034f86 Patch, Third Party Advisory
- https://git.exim.org/exim.git/commit/a04174dc2a84ae1008c23b6a7109e7fa3fb7b8b0 Patch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2020/05/msg00017.html Mailing List, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/F6IQQ2SERFUD4WMRSX6XYDNK7Q4GPT7Y/ lists.fedoraproject.org
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/M7Z5UG6ZIG32V7M4PP3BCC65C27EWK7G/ lists.fedoraproject.org
- https://usn.ubuntu.com/4366-1/ Third Party Advisory
- https://www.debian.org/security/2020/dsa-4687 Third Party Advisory
- http://www.openwall.com/lists/oss-security/2021/05/04/7 Exploit, Mailing List, Third Party Advisory
- https://bugs.exim.org/show_bug.cgi?id=2571 Third Party Advisory
- https://git.exim.org/exim.git/commit/57aa14b216432be381b6295c312065b2fd034f86 Patch, Third Party Advisory
- https://git.exim.org/exim.git/commit/a04174dc2a84ae1008c23b6a7109e7fa3fb7b8b0 Patch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2020/05/msg00017.html Mailing List, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/F6IQQ2SERFUD4WMRSX6XYDNK7Q4GPT7Y/ lists.fedoraproject.org
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/M7Z5UG6ZIG32V7M4PP3BCC65C27EWK7G/ lists.fedoraproject.org
- https://usn.ubuntu.com/4366-1/ Third Party Advisory
- https://www.debian.org/security/2020/dsa-4687 Third Party Advisory