From owner-svn-ports-head@freebsd.org Tue Aug 2 02:07:57 2016 Return-Path: Delivered-To: svn-ports-head@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id D6E6BBAAF5F; Tue, 2 Aug 2016 02:07:57 +0000 (UTC) (envelope-from junovitch@FreeBSD.org) Received: from repo.freebsd.org (repo.freebsd.org [IPv6:2610:1c1:1:6068::e6a:0]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 8DDCB12E3; Tue, 2 Aug 2016 02:07:57 +0000 (UTC) (envelope-from junovitch@FreeBSD.org) Received: from repo.freebsd.org ([127.0.1.37]) by repo.freebsd.org (8.15.2/8.15.2) with ESMTP id u7227ukT000491; Tue, 2 Aug 2016 02:07:56 GMT (envelope-from junovitch@FreeBSD.org) Received: (from junovitch@localhost) by repo.freebsd.org (8.15.2/8.15.2/Submit) id u7227u6A000490; Tue, 2 Aug 2016 02:07:56 GMT (envelope-from junovitch@FreeBSD.org) Message-Id: <201608020207.u7227u6A000490@repo.freebsd.org> X-Authentication-Warning: repo.freebsd.org: junovitch set sender to junovitch@FreeBSD.org using -f From: Jason Unovitch Date: Tue, 2 Aug 2016 02:07:56 +0000 (UTC) To: ports-committers@freebsd.org, svn-ports-all@freebsd.org, svn-ports-head@freebsd.org Subject: svn commit: r419463 - head/security/vuxml X-SVN-Group: ports-head MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-BeenThere: svn-ports-head@freebsd.org X-Mailman-Version: 2.1.22 Precedence: list List-Id: SVN commit messages for the ports tree for head List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 02 Aug 2016 02:07:58 -0000 Author: junovitch Date: Tue Aug 2 02:07:56 2016 New Revision: 419463 URL: https://svnweb.freebsd.org/changeset/ports/419463 Log: Document Xen Security Advisories (XSAs 182, 183, and 184) PR: 211482 Security: CVE-2016-5403 Security: CVE-2016-6259 Security: CVE-2016-6258 Security: https://vuxml.FreeBSD.org/freebsd/06574c62-5854-11e6-b334-002590263bf5.html Security: https://vuxml.FreeBSD.org/freebsd/04cf89e3-5854-11e6-b334-002590263bf5.html Security: https://vuxml.FreeBSD.org/freebsd/032aa524-5854-11e6-b334-002590263bf5.html Modified: head/security/vuxml/vuln.xml Modified: head/security/vuxml/vuln.xml ============================================================================== --- head/security/vuxml/vuln.xml Mon Aug 1 23:28:21 2016 (r419462) +++ head/security/vuxml/vuln.xml Tue Aug 2 02:07:56 2016 (r419463) @@ -58,6 +58,105 @@ Notes: * Do not forget port variants (linux-f10-libxml2, libxml2, etc.) --> + + xen-tools -- virtio: unbounded memory allocation issue + + + xen-tools + 4.7.0_4 + + + + +

The Xen Project reports:

+
A guest can submit virtio requests without bothering to wait for + completion and is therefore not bound by virtqueue size...
+
A malicious guest administrator can cause unbounded memory + allocation in QEMU, which can cause an Out-of-Memory condition + in the domain running qemu. Thus, a malicious guest administrator + can cause a denial of service affecting the whole host.
+

+ + + + CVE-2016-5403 + ports/211482 + http://xenbits.xen.org/xsa/advisory-184.html + + + 2016-07-27 + 2016-08-02 + + + + + xen-kernel -- x86: Missing SMAP whitelisting in 32-bit exception / event delivery + + + xen-kernel + 4.54.7.0_3 + + + + +

The Xen Project reports:

+
Supervisor Mode Access Prevention is a hardware feature designed + to make an Operating System more robust, by raising a pagefault + rather than accidentally following a pointer into userspace. + However, legitimate accesses into userspace require whitelisting, + and the exception delivery mechanism for 32bit PV guests wasn't + whitelisted.
+
A malicious 32-bit PV guest kernel can trigger a safety check, + crashing the hypervisor and causing a denial of service to other + VMs on the host.
+

+ + + + CVE-2016-6259 + ports/211482 + http://xenbits.xen.org/xsa/advisory-183.html + + + 2016-07-26 + 2016-08-02 + + + + + xen-kernel -- x86: Privilege escalation in PV guests + + + xen-kernel + 4.7.0_3 + + + + +

The Xen Project reports:

+
The PV pagetable code has fast-paths for making updates to + pre-existing pagetable entries, to skip expensive re-validation + in safe cases (e.g. clearing only Access/Dirty bits). The bits + considered safe were too broad, and not actually safe.
+
A malicous PV guest administrator can escalate their privilege to + that of the host.
+

+ + + + CVE-2016-6258 + ports/211482 + http://xenbits.xen.org/xsa/advisory-182.html + + + 2016-07-26 + 2016-08-02 + + + libidn -- mulitiple vulnerabilities