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Exim < 4.90.1 RCE Vulnerability (Version Check)
Information
Severity
Severity
High
Family
Family
SMTP problems
CVSSv2 Base
CVSSv2 Base
7.5
CVSSv2 Vector
CVSSv2 Vector
AV:N/AC:L/Au:N/C:P/I:P/A:P
Solution Type
Solution Type
Vendor Patch
Created
Created
6 years ago
Modified
Modified
5 years ago
Summary
Exim is prone to a remote code execution vulnerability.
Insight
Insight
Exim is prone to an overflow vulnerability in the base64 decode function. The flaw exists due to a calculation mistake of decode buffer length in the b64decode function.
Affected Software
Affected Software
Exim versions before 4.90.1.
Detection Method
Detection Method
Checks if a vulnerable version is present on the target host.
Solution
Solution
Update to version 4.90.1 or later.