Bug 1551753 (CVE-2017-7651) - CVE-2017-7651 mosquitto: memory exhaustion through multiple crafted CONNECT packets
Summary: CVE-2017-7651 mosquitto: memory exhaustion through multiple crafted CONNECT p...
Keywords:
Status: CLOSED ERRATA
Alias: CVE-2017-7651
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
low
low
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 1551754 1551755
Blocks:
TreeView+ depends on / blocked
 
Reported: 2018-03-05 21:45 UTC by Laura Pardo
Modified: 2019-09-29 14:34 UTC (History)
3 users (show)

Fixed In Version: mosquitto 1.4.15
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Clone Of:
Environment:
Last Closed: 2018-05-05 10:20:15 UTC
Embargoed:

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Description Laura Pardo 2018-03-05 21:45:35 UTC 
A flaw was found in mosquitto affecting all versions up to 1.4.14 inclusive. Unauthenticated clients can send a crafted CONNECT packet which causes large amounts of memory use in the broker. If multiple clients do this, an out of memory situation can occur and the system may become unresponsive or the broker will be killed by the operating system.


References:
https://bugzilla.redhat.com/show_bug.cgi?id=1549660
https://mosquitto.org/blog/2018/02/security-advisory-cve-2017-7651-cve-2017-7652/

Upstream Patch:
https://mosquitto.org/files/cve/2017-7651/
Comment 1 Laura Pardo 2018-03-05 21:45:56 UTC 
Created mosquitto tracking bugs for this issue:

Affects: fedora-all [bug 1551754]
Affects: epel-7 [bug 1551755]
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