Date: Fri, 31 May 2019 19:17:59 +0000 (UTC) From: Craig Leres <leres@FreeBSD.org> To: ports-committers@freebsd.org, svn-ports-all@freebsd.org, svn-ports-head@freebsd.org Subject: svn commit: r503190 - head/security/vuxml Message-ID: <201905311917.x4VJHxZV014476@repo.freebsd.org>
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Author: leres Date: Fri May 31 19:17:59 2019 New Revision: 503190 URL: https://svnweb.freebsd.org/changeset/ports/503190 Log: security/vuxml: Mark bro < 2.6.2 as vulnerable as per: https://raw.githubusercontent.com/zeek/zeek/bb979702cf9a2fa67b8d1a1c7f88d0b56c6af104/NEWS The issue is unsafe integer conversions that can cause unintentional code paths to be executed. Reviewed by: ler (mentor) Approved by: ler (mentor) Security: CVE-2019-12175 Differential Revision: https://reviews.freebsd.org/D20481 Modified: head/security/vuxml/vuln.xml Modified: head/security/vuxml/vuln.xml ============================================================================== --- head/security/vuxml/vuln.xml Fri May 31 18:58:39 2019 (r503189) +++ head/security/vuxml/vuln.xml Fri May 31 19:17:59 2019 (r503190) @@ -58,6 +58,61 @@ Notes: * Do not forget port variants (linux-f10-libxml2, libxml2, etc.) --> <vuxml xmlns="http://www.vuxml.org/apps/vuxml-1">; + <vuln vid="177fa455-48fc-4ded-ba1b-9975caa7f62a"> + <topic>bro -- Unsafe integer conversions can cause unintentional code paths to be executed</topic> + <affects> + <package> + <name>bro</name> + <range><lt>2.6.2</lt></range> + </package> + </affects> + <description> + <body xmlns="http://www.w3.org/1999/xhtml">; + <p>Jon Siwek of Corelight reports:</p> + <blockquote cite="https://raw.githubusercontent.com/zeek/zeek/bb979702cf9a2fa67b8d1a1c7f88d0b56c6af104/NEWS">; + <p>The following Denial of Service vulnerabilities are addressed:</p> + <ul> + <li>Integer type mismatches in BinPAC-generated parser code + and Bro analyzer code may allow for crafted packet data + to cause unintentional code paths in the analysis logic + to be taken due to unsafe integer conversions causing the + parser and analysis logic to each expect different fields + to have been parsed. One such example, reported by Maksim + Shudrak, causes the Kerberos analyzer to dereference a + null pointer. CVE-2019-12175 was assigned for this issue.</li> + + <li>The Kerberos parser allows for several fields to be left + uninitialized, but they were not marked with an &optional + attribute and several usages lacked existence checks. + Crafted packet data could potentially cause an attempt + to access such uninitialized fields, generate a runtime + error/exception, and leak memory. Existence checks and + &optional attributes have been added to the relevent + Kerberos fields.</li> + + <li>BinPAC-generated protocol parsers commonly contain fields + whose length is derived from other packet input, and for + those that allow for incremental parsing, BinPAC did not + impose a limit on how large such a field could grow, + allowing for remotely-controlled packet data to cause + growth of BinPAC's flowbuffer bounded only by the numeric + limit of an unsigned 64-bit integer, leading to memory + exhaustion. There is now a generalized limit for how + large flowbuffers are allowed to grow, tunable by setting + "BinPAC::flowbuffer_capacity_max".</li> + </ul> + </blockquote> + </body> + </description> + <references> + <cvename>CVE-2017-12175</cvename> + </references> + <dates> + <discovery>2019-05-29</discovery> + <entry>2019-05-31</entry> + </dates> + </vuln> + <vuln vid="183d700e-ec70-487e-a9c4-632324afa934"> <topic>ImageMagick -- multiple vulnerabilities</topic> <affects>
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