svn commit: r477828 - head/security/vuxml
Mark Felder
feld at FreeBSD.org
Wed Aug 22 21:28:05 UTC 2018
Author: feld
Date: Wed Aug 22 21:28:04 2018
New Revision: 477828
URL: https://svnweb.freebsd.org/changeset/ports/477828
Log:
Document FreeBSD-SA-18:10.ip
Modified:
head/security/vuxml/vuln.xml
Modified: head/security/vuxml/vuln.xml
==============================================================================
--- head/security/vuxml/vuln.xml Wed Aug 22 21:27:36 2018 (r477827)
+++ head/security/vuxml/vuln.xml Wed Aug 22 21:28:04 2018 (r477828)
@@ -58,6 +58,49 @@ Notes:
* Do not forget port variants (linux-f10-libxml2, libxml2, etc.)
-->
<vuxml xmlns="http://www.vuxml.org/apps/vuxml-1">
+ <vuln vid="359e1548-a652-11e8-805b-a4badb2f4699">
+ <topic>FreeBSD -- Resource exhaustion in IP fragment reassembly</topic>
+ <affects>
+ <package>
+ <name>FreeBSD-kernel</name>
+ <range><ge>11.2</ge><lt>11.2_2</lt></range>
+ <range><ge>11.1</ge><lt>11.1_13</lt></range>
+ </package>
+ </affects>
+ <description>
+ <body xmlns="http://www.w3.org/1999/xhtml">
+ <h1>Problem Description:</h1>
+ <p>A researcher has notified us of a DoS attack applicable
+ to another operating system. While FreeBSD may not be
+ vulnerable to that exact attack, we have identified several
+ places where inadequate DoS protection could allow an
+ attacker to consume system resources.</p>
+ <p>It is not necessary that the attacker be able to establish
+ two-way communication to carry out these attacks. These
+ attacks impact both IPv4 and IPv6 fragment reassembly.</p>
+ <h1>Impact:</h1>
+ <p>In the worst case, an attacker could send a stream of
+ crafted fragments with a low packet rate which would consume
+ a substantial amount of CPU.</p>
+ <p>Other attack vectors allow an attacker to send a stream
+ of crafted fragments which could consume a large amount of
+ CPU or all available mbuf clusters on the system.</p>
+ <p>These attacks could temporarily render a system unreachable
+ through network interfaces or temporarily render a system
+ unresponsive. The effects of the attack should clear within
+ 60 seconds after the attack stops.</p>
+ </body>
+ </description>
+ <references>
+ <cvename>CVE-2018-6923</cvename>
+ <freebsdsa>SA-18:10.ip</freebsdsa>
+ </references>
+ <dates>
+ <discovery>2018-08-14</discovery>
+ <entry>2018-08-22</entry>
+ </dates>
+ </vuln>
+
<vuln vid="2310b814-a652-11e8-805b-a4badb2f4699">
<topic>FreeBSD -- L1 Terminal Fault (L1TF) Kernel Information Disclosure</topic>
<affects>
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