diff options
| author | Craig Leres <leres@FreeBSD.org> | 2019-05-31 19:17:59 +0000 |
|---|---|---|
| committer | Craig Leres <leres@FreeBSD.org> | 2019-05-31 19:17:59 +0000 |
| commit | 0cdd6b2f5c01997540a65700b7e8d84ac56a92a4 (patch) | |
| tree | 7ac1c1815652085d7ce8dabc99cc94b4728feadb | |
| parent | 37843c3ed083d1857a6957987e9e0df1e0854718 (diff) | |
| download | freebsd-ports-0cdd6b2f5c01997540a65700b7e8d84ac56a92a4.zip | |
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
| -rw-r--r-- | security/vuxml/vuln.xml | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/security/vuxml/vuln.xml b/security/vuxml/vuln.xml index 12933ee0ece6..54b13fd38494 100644 --- a/security/vuxml/vuln.xml +++ b/security/vuxml/vuln.xml @@ -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> |