vulnerability
Exim: Integer overflow in receive_msg() (CVE-2020-28020)
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 8 | (AV:N/AC:L/Au:N/C:P/I:P/A:P) | May 6, 2021 | May 13, 2021 | Apr 7, 2026 |
Severity
8
CVSS
(AV:N/AC:L/Au:N/C:P/I:P/A:P)
Published
May 6, 2021
Added
May 13, 2021
Modified
Apr 7, 2026
Description
Exim 4 before 4.92 allows Integer Overflow to Buffer Overflow, in which an unauthenticated remote attacker can execute arbitrary code by leveraging the mishandling of continuation lines during header-length restriction.
Solutions
exim-upgrade-4_92exim-upgrade-4_94_2
References
- CVE-2020-28020
- https://attackerkb.com/topics/CVE-2020-28020
- CWE-190
- EUVD-EUVD-2020-20511
- http://www.openwall.com/lists/oss-security/2021/07/25/1
- http://www.openwall.com/lists/oss-security/2021/08/03/1
- https://euvd.enisa.europa.eu/vulnerability/EUVD-2020-20511
- https://www.exim.org/static/doc/security/CVE-2020-qualys/CVE-2020-28020-HSIZE.txt
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