Date: Thu, 18 Feb 2016 03:04:39 +0000 (UTC) From: Jason Unovitch <junovitch@FreeBSD.org> To: ports-committers@freebsd.org, svn-ports-all@freebsd.org, svn-ports-head@freebsd.org Subject: svn commit: r409084 - head/security/vuxml Message-ID: <201602180304.u1I34dQI076506@repo.freebsd.org>
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Author: junovitch Date: Thu Feb 18 03:04:39 2016 New Revision: 409084 URL: https://svnweb.freebsd.org/changeset/ports/409084 Log: Document Linux glibc crash/code execution via crafted DNS responses PR: 207272 Submitted by: Johannes Jost Meixner <johannes@meixner.dk> Security: CVE-2015-7547 Security: https://vuxml.FreeBSD.org/freebsd/2dd7e97e-d5e8-11e5-bcbd-bc5ff45d0f28.html Modified: head/security/vuxml/vuln.xml Modified: head/security/vuxml/vuln.xml ============================================================================== --- head/security/vuxml/vuln.xml Thu Feb 18 02:20:24 2016 (r409083) +++ head/security/vuxml/vuln.xml Thu Feb 18 03:04:39 2016 (r409084) @@ -57,6 +57,51 @@ Notes: * Do not forget port variants (linux-f10-libxml2, libxml2, etc.) --> <vuxml xmlns="http://www.vuxml.org/apps/vuxml-1">; + <vuln vid="2dd7e97e-d5e8-11e5-bcbd-bc5ff45d0f28"> + <topic>glibc -- getaddrinfo stack-based buffer overflow</topic> + <affects> + <package> + <name>linux_base-c6</name> + <name>linux_base-c6_64</name> + <range><lt>6.7_1</lt></range> + </package> + <package> + <name>linux_base-f10</name> + <range><ge>0</ge></range> + </package> + </affects> + <description> + <body xmlns="http://www.w3.org/1999/xhtml">; + <p>Fabio Olive Leite reports:</p> + <blockquote cite="https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2015-7547">; + <p>A stack-based buffer overflow was found in libresolv when invoked + from nss_dns, allowing specially crafted DNS responses to seize + control of EIP in the DNS client. The buffer overflow occurs in the + functions send_dg (send datagram) and send_vc (send TCP) for the + NSS module libnss_dns.so.2 when calling getaddrinfo with AF_UNSPEC + family, or in some cases AF_INET6 family. The use of AF_UNSPEC (or + AF_INET6 in some cases) triggers the low-level resolver code to + send out two parallel queries for A and AAAA. A mismanagement of + the buffers used for those queries could result in the response of + a query writing beyond the alloca allocated buffer created by + __res_nquery.</p> + </blockquote> + </body> + </description> + <references> + <cvename>CVE-2015-7547</cvename> + <freebsdpr>ports/207272</freebsdpr> + <url>https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2015-7547</url>; + <url>https://blog.des.no/2016/02/freebsd-and-cve-2015-7547/</url>; + <url>https://googleonlinesecurity.blogspot.no/2016/02/cve-2015-7547-glibc-getaddrinfo-stack.html</url>; + <url>https://sourceware.org/ml/libc-alpha/2016-02/msg00416.html</url>; + </references> + <dates> + <discovery>2016-02-16</discovery> + <entry>2016-02-18</entry> + </dates> + </vuln> + <vuln vid="56562efb-d5e4-11e5-b2bd-002590263bf5"> <topic>squid -- SSL/TLS processing remote DoS</topic> <affects>
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