ID

VAR-201506-0038

CVE

CVE-2015-3209

TITLE

QEMU of PCNET Controller heap-based buffer overflow vulnerability

DESCRIPTION

Heap-based buffer overflow in the PCNET controller in QEMU allows remote attackers to execute arbitrary code by sending a packet with TXSTATUS_STARTPACKET set and then a crafted packet with TXSTATUS_DEVICEOWNS set. Xen is a virtualization technology for the Linux kernel that allows multiple operating systems to run simultaneously. QEMU is prone to a heap-based buffer-overflow vulnerability. Failed attacks will cause denial-of-service conditions. QEMU (also known as Quick Emulator) is a set of analog processor software developed by French programmer Fabrice Bellard. The software has the characteristics of fast speed and cross-platform. -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 ===================================================================== Red Hat Security Advisory Synopsis: Important: qemu-kvm security update Advisory ID: RHSA-2015:1087-01 Product: Red Hat Enterprise Linux Advisory URL: https://rhn.redhat.com/errata/RHSA-2015-1087.html Issue date: 2015-06-10 CVE Names: CVE-2015-3209 ===================================================================== 1. Summary: Updated qemu-kvm packages that fix one security issue are now available for Red Hat Enterprise Linux 6. Red Hat Product Security 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. Relevant releases/architectures: Red Hat Enterprise Linux Desktop (v. 6) - i386, x86_64 Red Hat Enterprise Linux HPC Node (v. 6) - x86_64 Red Hat Enterprise Linux Server (v. 6) - i386, x86_64 Red Hat Enterprise Linux Workstation (v. 6) - i386, x86_64 3. Description: KVM (Kernel-based Virtual Machine) is a full virtualization solution for Linux on AMD64 and Intel 64 systems. The qemu-kvm package provides the user-space component for running virtual machines using KVM. A flaw was found in the way QEMU's AMD PCnet Ethernet emulation handled multi-TMD packets with a length above 4096 bytes. (CVE-2015-3209) Red Hat would like to thank Matt Tait of Google's Project Zero security team for reporting this issue. All qemu-kvm users are advised to upgrade to these updated packages, which contain a backported patch to correct this issue. After installing this update, shut down all running virtual machines. Once all virtual machines have shut down, start them again for this update to take effect. 4. Solution: Before applying this update, make sure all previously released errata relevant to your system have been applied. For details on how to apply this update, refer to: https://access.redhat.com/articles/11258 5. Bugs fixed (https://bugzilla.redhat.com/): 1225882 - CVE-2015-3209 qemu: pcnet: multi-tmd buffer overflow in the tx path 6. Package List: Red Hat Enterprise Linux Desktop (v. 6): Source: qemu-kvm-0.12.1.2-2.448.el6_6.4.src.rpm i386: qemu-guest-agent-0.12.1.2-2.448.el6_6.4.i686.rpm qemu-kvm-debuginfo-0.12.1.2-2.448.el6_6.4.i686.rpm x86_64: qemu-guest-agent-0.12.1.2-2.448.el6_6.4.x86_64.rpm qemu-img-0.12.1.2-2.448.el6_6.4.x86_64.rpm qemu-kvm-0.12.1.2-2.448.el6_6.4.x86_64.rpm qemu-kvm-debuginfo-0.12.1.2-2.448.el6_6.4.x86_64.rpm qemu-kvm-tools-0.12.1.2-2.448.el6_6.4.x86_64.rpm Red Hat Enterprise Linux HPC Node (v. 6): Source: qemu-kvm-0.12.1.2-2.448.el6_6.4.src.rpm x86_64: qemu-guest-agent-0.12.1.2-2.448.el6_6.4.x86_64.rpm qemu-img-0.12.1.2-2.448.el6_6.4.x86_64.rpm qemu-kvm-0.12.1.2-2.448.el6_6.4.x86_64.rpm qemu-kvm-debuginfo-0.12.1.2-2.448.el6_6.4.x86_64.rpm qemu-kvm-tools-0.12.1.2-2.448.el6_6.4.x86_64.rpm Red Hat Enterprise Linux Server (v. 6): Source: qemu-kvm-0.12.1.2-2.448.el6_6.4.src.rpm i386: qemu-guest-agent-0.12.1.2-2.448.el6_6.4.i686.rpm qemu-kvm-debuginfo-0.12.1.2-2.448.el6_6.4.i686.rpm x86_64: qemu-guest-agent-0.12.1.2-2.448.el6_6.4.x86_64.rpm qemu-img-0.12.1.2-2.448.el6_6.4.x86_64.rpm qemu-kvm-0.12.1.2-2.448.el6_6.4.x86_64.rpm qemu-kvm-debuginfo-0.12.1.2-2.448.el6_6.4.x86_64.rpm qemu-kvm-tools-0.12.1.2-2.448.el6_6.4.x86_64.rpm Red Hat Enterprise Linux Workstation (v. 6): Source: qemu-kvm-0.12.1.2-2.448.el6_6.4.src.rpm i386: qemu-guest-agent-0.12.1.2-2.448.el6_6.4.i686.rpm qemu-kvm-debuginfo-0.12.1.2-2.448.el6_6.4.i686.rpm x86_64: qemu-guest-agent-0.12.1.2-2.448.el6_6.4.x86_64.rpm qemu-img-0.12.1.2-2.448.el6_6.4.x86_64.rpm qemu-kvm-0.12.1.2-2.448.el6_6.4.x86_64.rpm qemu-kvm-debuginfo-0.12.1.2-2.448.el6_6.4.x86_64.rpm qemu-kvm-tools-0.12.1.2-2.448.el6_6.4.x86_64.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/ 7. References: https://access.redhat.com/security/cve/CVE-2015-3209 https://access.redhat.com/security/updates/classification/#important 8. Contact: The Red Hat security contact is <secalert@redhat.com>. More contact details at https://access.redhat.com/security/team/contact/ Copyright 2015 Red Hat, Inc. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iD8DBQFVeHRmXlSAg2UNWIIRAkq5AKCeYGr9MG7Kdic1FVJZw2avAhO6eACdFG0W VCkW3jIuuaxOqeYM0s8u6ss= =+WsT -----END PGP SIGNATURE----- -- RHSA-announce mailing list RHSA-announce@redhat.com https://www.redhat.com/mailman/listinfo/rhsa-announce . CVE-2015-4037 Kurt Seifried of Red Hat Product Security discovered that QEMU's user mode networking stack uses predictable temporary file names when the -smb option is used. An unprivileged user can use this flaw to cause a denial of service. CVE-2015-4103 Jan Beulich discovered that the QEMU Xen code does not properly restrict write access to the host MSI message data field, allowing a malicious guest to cause a denial of service. CVE-2015-4104 Jan Beulich discovered that the QEMU Xen code does not properly restrict access to PCI MSI mask bits, allowing a malicious guest to cause a denial of service. CVE-2015-4105 Jan Beulich reported that the QEMU Xen code enables logging for PCI MSI-X pass-through error messages, allowing a malicious guest to cause a denial of service. CVE-2015-4106 Jan Beulich discovered that the QEMU Xen code does not properly restrict write access to the PCI config space for certain PCI pass-through devices, allowing a malicious guest to cause a denial of service, obtain sensitive information or potentially execute arbitrary code. CVE-2015-4163 Jan Beulich discovered that a missing version check in the GNTTABOP_swap_grant_ref hypercall handler may result in denial of service. This only applies to Debian stable/jessie. CVE-2015-4164 Andrew Cooper discovered a vulnerability in the iret hypercall handler, which may result in denial of service. For the oldstable distribution (wheezy), these problems have been fixed in version 4.1.4-3+deb7u8. For the stable distribution (jessie), these problems have been fixed in version 4.4.1-9+deb8u1. CVE-2015-3209, CVE-2015-4103, CVE-2015-4104, CVE-2015-4105 and CVE-2015-4106 don't affect the Xen package in stable jessie, it uses the standard qemu package and has already been fixed in DSA-3284-1. For the unstable distribution (sid), these problems will be fixed soon. We recommend that you upgrade your xen packages. Relevant releases/architectures: RHEV Agents (vdsm) - x86_64 3. - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 201510-02 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - https://security.gentoo.org/ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Severity: Normal Title: QEMU: Arbitrary code execution Date: October 31, 2015 Bugs: #551752, #555680, #556050, #556052 ID: 201510-02 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Synopsis ======== A heap-based buffer overflow in QEMU could result in execution of arbitrary code. Background ========== QEMU is a generic and open source machine emulator and virtualizer. Affected packages ================= ------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 app-emulation/qemu < 2.3.0-r4 >= 2.3.0-r4 Description =========== Heap-based buffer overflow has been found in QEMU's PCNET controller. Workaround ========== There is no known workaround at this time. Resolution ========== All QEMU users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose ">=app-emulation/qemu-2.3.0-r4" References ========== [ 1 ] CVE-2015-3209 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2015-3209 [ 2 ] CVE-2015-3214 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2015-3214 [ 3 ] CVE-2015-5154 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2015-5154 [ 4 ] CVE-2015-5158 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2015-5158 Availability ============ This GLSA and any updates to it are available for viewing at the Gentoo Security Website: https://security.gentoo.org/glsa/201510-02 Concerns? ========= Security is a primary focus of Gentoo Linux and ensuring the confidentiality and security of our users' machines is of utmost importance to us. Any security concerns should be addressed to security@gentoo.org or alternatively, you may file a bug at https://bugs.gentoo.org. License ======= Copyright 2015 Gentoo Foundation, Inc; referenced text belongs to its owner(s). The contents of this document are licensed under the Creative Commons - Attribution / Share Alike license. http://creativecommons.org/licenses/by-sa/2.5

IOT TAXONOMY

AFFECTED PRODUCTS

CVSS

PROBLEMTYPE DATA

THREAT TYPE

remote

TYPE

buffer error

CONFIGURATIONS

PATCH

EXTERNAL IDS

REFERENCES

CREDITS

Matt Tait of Google's Project Zero security team.

SOURCES

LAST UPDATE DATE

2026-03-26T20:02:38.773000+00:00

SOURCES UPDATE DATE

SOURCES RELEASE DATE