11 June 2013
Protect yourself against future threats.
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2013.0800 Important: rhev-guest-tools-iso & spice-vdagent-win security and bug fix update 11 June 2013 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: rhev-guest-tools-iso spice-vdagent-win Publisher: Red Hat Operating System: Windows Impact/Access: Administrator Compromise -- Existing Account Resolution: Patch/Upgrade CVE Names: CVE-2013-2152 CVE-2013-2151 Original Bulletin: https://rhn.redhat.com/errata/RHSA-2013-0924.html https://rhn.redhat.com/errata/RHSA-2013-0925.html Comment: This bulletin contains two (2) Red Hat security advisories. - --------------------------BEGIN INCLUDED TEXT-------------------- - -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 ===================================================================== Red Hat Security Advisory Synopsis: Important: rhev-guest-tools-iso security and bug fix update Advisory ID: RHSA-2013:0925-01 Product: Red Hat Enterprise Virtualization Advisory URL: https://rhn.redhat.com/errata/RHSA-2013-0925.html Issue date: 2013-06-10 CVE Names: CVE-2013-2151 CVE-2013-2152 ===================================================================== 1. Summary: An updated rhev-guest-tools-iso package that fixes two security issues and two bugs is now available. The Red Hat Security Response Team has rated this update as having important security impact. Common Vulnerability Scoring System (CVSS) base scores, which give detailed severity ratings, are available for each vulnerability from the CVE links in the References section. 2. Relevant releases/architectures: RHEV-M 3.2 - noarch 3. Description: The rhev-guest-tools-iso package contains tools and drivers. These tools and drivers are required by supported Windows guest operating systems when installed as guests on Red Hat Enterprise Virtualization. An unquoted search path flaw was found in the way the Red Hat Enterprise Virtualization agent was installed on Windows. Depending on the permissions of the directories in the unquoted search path, a local, unprivileged user could use this flaw to have a binary of their choosing executed with SYSTEM privileges. (CVE-2013-2151) An unquoted search path flaw was found in the way the SPICE service was installed on Windows. Depending on the permissions of the directories in the unquoted search path, a local, unprivileged user could use this flaw to have a binary of their choosing executed with SYSTEM privileges. (CVE-2013-2152) This update also fixes the following bugs: * Previously, when trying to uninstall rhev-guest-tools in Windows Server 2003 (both 32-bit and 64-bit), an error event was created in the event viewer saying "The BalloonService service hung on starting", even though the package was uninstalled correctly. Now, the balloon service executable is no longer registered meaning the service is no longer running by default and rhev-guest-tools can be uninstalled without any error messages. (BZ#860225, BZ#880278) All Red Hat Enterprise Virtualization users are advised to upgrade to this updated rhev-guest-tools-iso package, which resolves these issues. 4. Solution: Before applying this update, make sure all previously-released errata relevant to your system have been applied. This update is available via the Red Hat Network. Follow the upgrade procedure in the Red Hat Enterprise Virtualization Installation Guide to install these updated packages: https://access.redhat.com/site/documentation/en-US/Red_Hat_Enterprise_Virtualization/3.2/html/Installation_Guide/chap-Upgrading_to_Red_Hat_Enterprise_Virtualization_3.2.html To install the updated guest tools on individual guests using the image provided by the rhev-guest-tools-iso package refer to: https://access.redhat.com/site/documentation/en-US/Red_Hat_Enterprise_Virtualization/3.2/html/Administration_Guide/sect-Guest_Drivers_and_Agents.html 5. Bugs fixed (http://bugzilla.redhat.com/): 860225 - Uninstalling RHEV-Tools in Windows 2003-64bit version creates error event 962667 - [Windows Guest Tools] TypeError: encode() argument 1 must be string, not Non - 3.2.7 Guest Agent does not report data 971171 - CVE-2013-2151 rhevm: rhev agent service unquoted search path 971172 - CVE-2013-2152 rhevm: spice service unquoted search path 6. Package List: RHEV-M 3.2: noarch: rhev-guest-tools-iso-3.2-8.noarch.rpm These packages are GPG signed by Red Hat for security. Our key and details on how to verify the signature are available from https://access.redhat.com/security/team/key/#package 7. References: https://www.redhat.com/security/data/cve/CVE-2013-2151.html https://www.redhat.com/security/data/cve/CVE-2013-2152.html https://access.redhat.com/security/updates/classification/#important https://access.redhat.com/site/documentation/en-US/Red_Hat_Enterprise_Virtualization/3.2/html/Installation_Guide/chap-Upgrading_to_Red_Hat_Enterprise_Virtualization_3.2.html https://access.redhat.com/site/documentation/en-US/Red_Hat_Enterprise_Virtualization/3.2/html/Administration_Guide/sect-Guest_Drivers_and_Agents.html 8. Contact: The Red Hat security contact is <email@example.com>. More contact details at https://access.redhat.com/security/team/contact/ Copyright 2013 Red Hat, Inc. - -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.4 (GNU/Linux) iD8DBQFRtkDeXlSAg2UNWIIRAkwCAKC9AHKenN2WjkXWK3C9b5rpVCLeWwCggnvz kMZ6rTp1TEgKxLC+HDHq59U= =+dy2 - -----END PGP SIGNATURE----- - -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 ===================================================================== Red Hat Security Advisory Synopsis: Important: spice-vdagent-win security and bug fix update Advisory ID: RHSA-2013:0924-01 Product: Red Hat Enterprise Virtualization Advisory URL: https://rhn.redhat.com/errata/RHSA-2013-0924.html Issue date: 2013-06-10 CVE Names: CVE-2013-2152 ===================================================================== 1. Summary: An update for spice-vdagent-win that fixes one security issue and several bugs is now available. The Red Hat Security Response Team has rated this update as having important security impact. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available from the CVE link in the References section. 2. Description: spice-vdagent-win provides a service and an agent that can be installed and run on Windows guests. An unquoted search path flaw was found in the way the SPICE service was installed on Windows. Depending on the permissions of the directories in the unquoted search path, a local, unprivileged user could use this flaw to have a binary of their choosing executed with SYSTEM privileges. (CVE-2013-2152) This update also fixes the following bugs: * Previously, due to issues with some Windows guest applications, RHEV SPICE agent stopped getting clipboard changes. Now, the agent uses a new API that keeps track of clipboard changes, without the need to "trust" the behavior of other applications registered to the clipboard. (BZ#919451) * Previously, copying a .jpg or .png image file from specific applications, such as Mozilla Firefox, on a Windows guest, then pasting into a Linux client, resulted in an empty or black and white image due to incorrect pallete encoding in the guest vdagent. Now, the encoding has been fixed and copying and pasting works as expected. (BZ#919150) * Previously, when using a Windows virtual machine, enabling extra monitors with arbitrary configuration could fail. Now the agent enables the monitors before updating it to an arbitrary resolution to solve this issue. (BZ#922394) * Previously, if SPICE was disconnected in the middle of copying and pasting data from the client to the guest, copy and paste would stop working after SPICE was reconnected. Now, the clipboard timeout has been adjusted so that if SPICE is unexpectedly disconnected, the immediate copy and paste action will fail, but subsequent attempts will be successful. (BZ#833835) * Previously, when attempting to connect multiple displays using a Windows 7 guest, remote-viewer would only show one display available, even when all settings in the manager and on the SPICE client itself were correctly configured. This was caused by a regression issue relating to changes to custom resolution commands. Now, connecting and displaying multiple monitors functions correctly. (BZ#922283) * Previously, due to a regression caused by another patch, copying a .png image from specific applications, such as Firefox, on a Linux client, failed pasting into a Windows guest application, such as Paint, due to incorrect pallete encoding in the guest vdagent. Now, the encoding has been fixed and copying and pasting works as expected. (BZ#921980) * Previously, when a second user logged into a Windows guest, the RHEV SPICE Agent service terminated the previous vdagent instance, but mistakenly also the newly created vdagent on the current active session. Now, the vdagent termination event is reset after previous agent termination, so each new agent is no longer terminated. (BZ#868254) * Previously, if "RHEV SPICE agent" was stopped after copying data from a Windows guest, the client was not correctly notified, and assumed it could still paste the data. Now, agent termination has been fixed so that the client is notified to release the clipboard. (BZ#903379) 3. Solution: Red Hat Enterprise Virtualization users that are using SPICE to connect to their virtual machines are advised to install this update. 4. Bugs fixed (http://bugzilla.redhat.com/): 833835 - copy-paste stops working after client disconnection during a copy-paste 868254 - vdagent-win exits if two users are logged in simultaneously 903379 - Stop the spice-vdagent on a Windows VM and the client right-click menu still shows you can paste with an empty clipboard. 922283 - win-vdagent: does not enable extra displays 922394 - --full-screen=auto-conf doesn't turn on disabled guest monitors 971172 - CVE-2013-2152 rhevm: spice service unquoted search path 5. References: https://www.redhat.com/security/data/cve/CVE-2013-2152.html https://access.redhat.com/security/updates/classification/#important 6. Contact: The Red Hat security contact is <firstname.lastname@example.org>. More contact details at https://access.redhat.com/security/team/contact/ Copyright 2013 Red Hat, Inc. - -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.4 (GNU/Linux) iD8DBQFRtkCiXlSAg2UNWIIRAjFhAKCPt2Okx8fSwurWw+n6ko7GVkUbXwCgsLGQ FOdSFAsMBtuFTl8VBa7gW1w= =AMZc - -----END PGP SIGNATURE----- - --------------------------END INCLUDED TEXT-------------------- You have received this e-mail bulletin as a result of your organisation's registration with AusCERT. The mailing list you are subscribed to is maintained within your organisation, so if you do not wish to continue receiving these bulletins you should contact your local IT manager. If you do not know who that is, please send an email to email@example.com and we will forward your request to the appropriate person. NOTE: Third Party Rights This security bulletin is provided as a service to AusCERT's members. As AusCERT did not write the document quoted above, AusCERT has had no control over its content. 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