svn commit: r507671 - head/security/vuxml
Mark Felder
feld at FreeBSD.org
Tue Jul 30 20:37:37 UTC 2019
Author: feld
Date: Tue Jul 30 20:37:36 2019
New Revision: 507671
URL: https://svnweb.freebsd.org/changeset/ports/507671
Log:
Document FreeBSD-SA-19:08.rack
Modified:
head/security/vuxml/vuln.xml
Modified: head/security/vuxml/vuln.xml
==============================================================================
--- head/security/vuxml/vuln.xml Tue Jul 30 20:36:45 2019 (r507670)
+++ head/security/vuxml/vuln.xml Tue Jul 30 20:37:36 2019 (r507671)
@@ -58,6 +58,41 @@ Notes:
* Do not forget port variants (linux-f10-libxml2, libxml2, etc.)
-->
<vuxml xmlns="http://www.vuxml.org/apps/vuxml-1">
+ <vuln vid="c294c2e6-b309-11e9-a87f-a4badb2f4699">
+ <topic>FreeBSD -- Resource exhaustion in non-default RACK TCP stack</topic>
+ <affects>
+ <package>
+ <name>FreeBSD-kernel</name>
+ <range><ge>12.0</ge><lt>12.0_6</lt></range>
+ </package>
+ </affects>
+ <description>
+ <body xmlns="http://www.w3.org/1999/xhtml">
+ <h1>Problem Description:</h1>
+ <p>While processing acknowledgements, the RACK code uses
+ several linked lists to maintain state entries. A malicious
+ attacker can cause the lists to grow unbounded. This can
+ cause an expensive list traversal on every packet being
+ processed, leading to resource exhaustion and a denial of
+ service.</p>
+ <h1>Impact:</h1>
+ <p>An attacker with the ability to send specially crafted
+ TCP traffic to a victim system can degrade network performance
+ and/or consume excessive CPU by exploiting the inefficiency
+ of traversing the potentially very large RACK linked lists
+ with relatively small bandwidth cost.</p>
+ </body>
+ </description>
+ <references>
+ <cvename>CVE-2019-5599</cvename>
+ <freebsdsa>SA-19:08.rack</freebsdsa>
+ </references>
+ <dates>
+ <discovery>2019-06-19</discovery>
+ <entry>2019-07-30</entry>
+ </dates>
+ </vuln>
+
<vuln vid="a633651b-b309-11e9-a87f-a4badb2f4699">
<topic>FreeBSD -- Microarchitectural Data Sampling (MDS)</topic>
<affects>
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