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FreeBSD: VID-75DD622C-D5FD-11E7-B9FE-C13EB7BCBF4F (CVE-2017-16944): exim -- remote DoS attack in BDAT processing

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FreeBSD: VID-75DD622C-D5FD-11E7-B9FE-C13EB7BCBF4F (CVE-2017-16944): exim -- remote DoS attack in BDAT processing

Severity
5
CVSS
(AV:N/AC:L/Au:N/C:N/I:N/A:P)
Published
11/23/2017
Created
07/25/2018
Added
12/01/2017
Modified
05/03/2019

Description

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.

Solution(s)

  • freebsd-upgrade-package-exim

References

  • 1039873
  • DSA-4053
  • CVE-2017-16944
  • USN-3499-1

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