svn commit: r556810 - head/security/vuxml
Philip Paeps
philip at FreeBSD.org
Wed Dec 2 10:03:20 UTC 2020
Author: philip
Date: Wed Dec 2 10:03:15 2020
New Revision: 556810
URL: https://svnweb.freebsd.org/changeset/ports/556810
Log:
security/vuxml: add FreeBSD SA-20:32.rtsold
Modified:
head/security/vuxml/vuln.xml
Modified: head/security/vuxml/vuln.xml
==============================================================================
--- head/security/vuxml/vuln.xml Wed Dec 2 10:03:09 2020 (r556809)
+++ head/security/vuxml/vuln.xml Wed Dec 2 10:03:15 2020 (r556810)
@@ -58,6 +58,50 @@ Notes:
* Do not forget port variants (linux-f10-libxml2, libxml2, etc.)
-->
<vuxml xmlns="http://www.vuxml.org/apps/vuxml-1">
+ <vuln vid="e2748c9d-3483-11eb-b87a-901b0ef719ab">
+ <topic>FreeBSD -- Multiple vulnerabilities in rtsold</topic>
+ <affects>
+ <package>
+ <name>FreeBSD</name>
+ <range><ge>12.2</ge><lt>12.2_1</lt></range>
+ <range><ge>12.1</ge><lt>12.1_11</lt></range>
+ <range><ge>11.4</ge><lt>11.4_5</lt></range>
+ </package>
+ </affects>
+ <description>
+ <body xmlns="http://www.w3.org/1999/xhtml">
+ <h1>Problem Description:</h1>
+ <p>Two bugs exist in rtsold(8)'s RDNSS and DNSSL option handling.
+ First, rtsold(8) failed to perform sufficient bounds checking on the
+ extent of the option. In particular, it does not verify that the
+ option does not extend past the end of the received packet before
+ processing its contents. The kernel currently ignores such
+ malformed packets but still passes them to userspace programs.</p>
+ <p>Second, when processing a DNSSL option, rtsold(8) decodes domain
+ name labels per an encoding specified in RFC 1035 in which the first
+ octet of each label contains the label's length. rtsold(8) did not
+ validate label lengths correctly and could overflow the destination
+ buffer.</p>
+ <h1>Impact:</h1>
+ <p>It is believed that these bugs could be exploited to gain remote
+ code execution within the rtsold(8) daemon, which runs as root.
+ Note that rtsold(8) only processes messages received from hosts
+ attached to the same physical link as the interface(s) on which
+ rtsold(8) is listening.</p>
+ <p>In FreeBSD 12.2 rtsold(8) runs in a Capsicum sandbox, limiting the
+ scope of a compromised rtsold(8) process.</p>
+ </body>
+ </description>
+ <references>
+ <cvename>CVE-2020-25577</cvename>
+ <freebsdsa>SA-20:32.rtsold</freebsdsa>
+ </references>
+ <dates>
+ <discovery>2020-12-01</discovery>
+ <entry>2020-12-02</entry>
+ </dates>
+ </vuln>
+
<vuln vid="8eed0c5c-3482-11eb-b87a-901b0ef719ab">
<topic>FreeBSD -- ICMPv6 use-after-free in error message handling</topic>
<affects>
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