Date: Tue, 30 Jul 2019 20:37:36 +0000 (UTC) From: Mark Felder <feld@FreeBSD.org> To: ports-committers@freebsd.org, svn-ports-all@freebsd.org, svn-ports-head@freebsd.org Subject: svn commit: r507671 - head/security/vuxml Message-ID: <201907302037.x6UKba7B047062@repo.freebsd.org>
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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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