svn commit: r456560 - head/security/vuxml
Niclas Zeising
zeising at FreeBSD.org
Sun Dec 17 18:50:02 UTC 2017
Author: zeising
Date: Sun Dec 17 18:50:00 2017
New Revision: 456560
URL: https://svnweb.freebsd.org/changeset/ports/456560
Log:
Document multiple vulnerabilities in libXfont and libXfont2.
The first two vulnerabilities are memory leaks when reading past valid
memory.
The last vulnerability is the possibility for an unprivileged X client to
read privileged files through symlinks
CVE-2017-13720
CVE-2017-13722
CVE-2017-16611
Modified:
head/security/vuxml/vuln.xml
Modified: head/security/vuxml/vuln.xml
==============================================================================
--- head/security/vuxml/vuln.xml Sun Dec 17 16:46:05 2017 (r456559)
+++ head/security/vuxml/vuln.xml Sun Dec 17 18:50:00 2017 (r456560)
@@ -58,6 +58,79 @@ Notes:
* Do not forget port variants (linux-f10-libxml2, libxml2, etc.)
-->
<vuxml xmlns="http://www.vuxml.org/apps/vuxml-1">
+ <vuln vid="08a125f3-e35a-11e7-a293-54e1ad3d6335">
+ <topic>libXfont -- permission bypass when opening files through symlinks</topic>
+ <affects>
+ <package>
+ <name>libXfont</name>
+ <range><lt>1.5.4</lt></range>
+ </package>
+ <package>
+ <name>libXfont2</name>
+ <range><lt>2.0.3</lt></range>
+ </package>
+ </affects>
+ <description>
+ <body xmlns="http://www.w3.org/1999/xhtml">
+ <p>the freedesktop.org project reports:</p>
+ <blockquote cite="https://cgit.freedesktop.org/xorg/lib/libXfont/commit/?id=7b377456f95d2ec3ead40f4fb74ea620191f88c8">
+ <p>A non-privileged X client can instruct X server running under root
+ to open any file by creating own directory with "fonts.dir",
+ "fonts.alias" or any font file being a symbolic link to any other
+ file in the system. X server will then open it. This can be issue
+ with special files such as /dev/watchdog.</p>
+ </blockquote>
+ </body>
+ </description>
+ <references>
+ <url>https://cgit.freedesktop.org/xorg/lib/libXfont/commit/?id=7b377456f95d2ec3ead40f4fb74ea620191f88c8</url>
+ <cvename>CVE-2017-16611</cvename>
+ </references>
+ <dates>
+ <discovery>2017-11-25</discovery>
+ <entry>2017-12-17</entry>
+ </dates>
+ </vuln>
+
+ <vuln vid="3b9590a1-e358-11e7-a293-54e1ad3d6335">
+ <topic>libXfont -- multiple memory leaks</topic>
+ <affects>
+ <package>
+ <name>libXfont</name>
+ <range><lt>1.5.3</lt></range>
+ </package>
+ <package>
+ <name>libXfont2</name>
+ <range><lt>2.0.2</lt></range>
+ </package>
+ </affects>
+ <description>
+ <body xmlns="http://www.w3.org/1999/xhtml">
+ <p>The freedesktop.org project reports:</p>
+ <blockquote cite="https://cgit.freedesktop.org/xorg/lib/libXfont/commit/?id=d1e670a4a8704b8708e493ab6155589bcd570608">
+ <p>If a pattern contains '?' character, any character in the string
+ is skipped, even if it is '\0'. The rest of the matching then reads
+ invalid memory.</p>
+ </blockquote>
+ <blockquote cite="https://cgit.freedesktop.org/xorg/lib/libXfont/commit/?id=672bb944311392e2415b39c0d63b1e1902906bcd">
+ <p>Without the checks a malformed PCF file can cause the library to
+ make atom from random heap memory that was behind the `strings`
+ buffer. This may crash the process or leak information.</p>
+ </blockquote>
+ </body>
+ </description>
+ <references>
+ <url>https://cgit.freedesktop.org/xorg/lib/libXfont/commit/?id=d1e670a4a8704b8708e493ab6155589bcd570608</url>
+ <url>https://cgit.freedesktop.org/xorg/lib/libXfont/commit/?id=672bb944311392e2415b39c0d63b1e1902905bcd</url>
+ <cvename>CVE-2017-13720</cvename>
+ <cvename>CVE-2017-13722</cvename>
+ </references>
+ <dates>
+ <discovery>2017-10-04</discovery>
+ <entry>2017-12-17</entry>
+ </dates>
+ </vuln>
+
<vuln vid="ddecde18-e33b-11e7-a293-54e1ad3d6335">
<topic>libXcursor -- integer overflow that can lead to heap buffer overflow</topic>
<affects>
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