Bug 1517684 (CVE-2017-16944) - CVE-2017-16944 exim: infinite loop and stack exhaustion in receive_msg function via vectors involving BDAT commands
Summary: CVE-2017-16944 exim: infinite loop and stack exhaustion in receive_msg functi...
Keywords:
Status: CLOSED NOTABUG
Alias: CVE-2017-16944
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
high
high
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 1517686 1517687
Blocks:
TreeView+ depends on / blocked
 
Reported: 2017-11-27 08:53 UTC by Adam Mariš
Modified: 2019-09-29 14:26 UTC (History)
4 users (show)

Fixed In Version:
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Last Closed: 2017-11-27 09:02:37 UTC


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Description Adam Mariš 2017-11-27 08:53:16 UTC
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.

Upstream bug:

https://bugs.exim.org/show_bug.cgi?id=2201

Comment 1 Adam Mariš 2017-11-27 08:54:26 UTC
Created exim tracking bugs for this issue:

Affects: epel-all [bug 1517686]
Affects: fedora-all [bug 1517687]


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