Exim 4 before 4.94.2 allows Buffer Underwrite that may result in unauthenticated remote attackers executing arbitrary commands, because smtp_ungetc was only intended to push back characters, but can actually push back non-character error codes such as EOF.
Metrics
Affected Vendors & Products
Advisories
Source | ID | Title |
---|---|---|
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DLA-2650-1 | exim4 security update |
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DSA-4912-1 | exim4 security update |
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EUVD-2020-20515 | Exim 4 before 4.94.2 allows Buffer Underwrite that may result in unauthenticated remote attackers executing arbitrary commands, because smtp_ungetc was only intended to push back characters, but can actually push back non-character error codes such as EOF. |
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USN-4934-1 | Exim vulnerabilities |
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USN-4934-2 | Exim vulnerabilities |
Fixes
Solution
No solution given by the vendor.
Workaround
No workaround given by the vendor.
References
History
No history.

Status: PUBLISHED
Assigner: mitre
Published:
Updated: 2024-08-04T16:25:44.102Z
Reserved: 2020-10-30T00:00:00
Link: CVE-2020-28024

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Status : Modified
Published: 2021-05-06T13:15:09.720
Modified: 2024-11-21T05:22:13.810
Link: CVE-2020-28024

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