Denial of Service Vulnerability in Exim SMTP Daemon via BDAT Commands

CVE-2017-16944 · MEDIUM Severity

AV:N/AC:L/AU:N/C:N/I:N/A:P

The receive_msg function in receive.c in the SMTP daemon in Exim 4.88 and 4.89 allows remote attackers to cause a denial of service (infinite loop and stack exhaustion) via vectors involving BDAT commands and an improper check for a '.' character signifying the end of the content, related to the bdat_getc function.

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