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Status published
High
CVE-2020-12783
Exim through 4.93 has an out-of-bounds read in the SPA...
Vulnerability 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.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
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Credits & Attribution
No credits recorded in the NVD database.
References
- 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://www.debian.org/security/2020/dsa-4687
- https://lists.debian.org/debian-lts-announce/2020/05/msg00017.html
- https://usn.ubuntu.com/4366-1/
- 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/
- http://www.openwall.com/lists/oss-security/2021/05/04/7
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Affected Vendor
exim
View all reports →Affected Software
exim, fedora, debian linux, ubuntu linux
Vulnerable Versions:
0, 31, 32, 8.0, 9.0, 10.0, 14.04, 16.04, 18.04, 19.10, 20.04
Timeline
Official Publish:
May 11th, 2020
Last Modified:
August 4th, 2024
Added to House:
July 21st, 2026
CVSS Vectors
V3:
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Weaknesses (CWE)
No CWE data available
MITRE ATT&CK TTPs
No associated TTPs found for this vulnerability.