Date: Fri, 10 Jul 2020 05:30:12 +0000 (UTC) From: Philip Paeps <philip@FreeBSD.org> To: ports-committers@freebsd.org, svn-ports-all@freebsd.org, svn-ports-head@freebsd.org Subject: svn commit: r541835 - head/security/vuxml Message-ID: <202007100530.06A5UCaL065253@repo.freebsd.org>
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Author: philip Date: Fri Jul 10 05:30:12 2020 New Revision: 541835 URL: https://svnweb.freebsd.org/changeset/ports/541835 Log: security/vuxml: add FreeBSD SA-20:18.posix_spawnp Modified: head/security/vuxml/vuln.xml Modified: head/security/vuxml/vuln.xml ============================================================================== --- head/security/vuxml/vuln.xml Fri Jul 10 03:11:47 2020 (r541834) +++ head/security/vuxml/vuln.xml Fri Jul 10 05:30:12 2020 (r541835) @@ -58,6 +58,38 @@ Notes: * Do not forget port variants (linux-f10-libxml2, libxml2, etc.) --> <vuxml xmlns="http://www.vuxml.org/apps/vuxml-1">; + <vuln vid="f8b46415-c264-11ea-8659-901b0ef719ab"> + <topic>FreeBSD -- posix_spawnp(3) buffer overflow</topic> + <affects> + <package> + <name>FreeBSD</name> + <range><ge>11.4</ge><lt>11.4_1</lt></range> + </package> + </affects> + <description> + <body xmlns="http://www.w3.org/1999/xhtml">; + <h1>Problem Description:</h1> + <p>posix_spawnp spawns a new thread with a limited stack allocated on the heap + before delegating to execvp for the final execution within that thread.</p> + <p>execvp would previously make unbounded allocations on the stack, directly + proportional to the length of the user-controlled PATH environment variable.</p> + <h1>Impact:</h1> + <p>Long values in the user-controlled PATH environment variable cause + posix_spawnp to write beyond the end of stack that was allocated, ultimately + overflowing the heap-allocated stack with a direct copy of the value stored + in PATH.</p> + </body> + </description> + <references> + <cvename>CVE-2020-7458</cvename> + <freebsdsa>SA-20:18.posix_spawnp</freebsdsa> + </references> + <dates> + <discovery>2020-07-09</discovery> + <entry>2020-07-10</entry> + </dates> + </vuln> + <vuln vid="198a120d-c22d-11ea-9172-4c72b94353b5"> <topic>mybb -- multible vulnerabilities</topic> <affects>
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