Race condition in the worker_update_monitors_config function in SPICE 0.12.4 allows a remote authenticated guest user to cause a denial of service (heap-based memory corruption and QEMU-KVM crash) or possibly execute arbitrary code on the host via unspecified vectors.

Spice was updated to fix three security issues.

The following vulnerabilities were fixed :

  - CVE-2015-3247: heap corruption in the spice server     (bsc#944460)

  - CVE-2015-5261: Guest could have accessed host memory     using crafted images (bsc#948976)

  - CVE-2015-5260: Insufficient validation of surface_id     parameter could have caused a crash (bsc#944787)

Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

An updated spice-server package that fixes one security issue is 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.

The Simple Protocol for Independent Computing Environments (SPICE) is a remote display protocol for virtual environments. SPICE users can access a virtualized desktop or server from the local system or any system with network access to the server. SPICE is used in Red Hat Enterprise Linux for viewing virtualized guests running on the Kernel-based Virtual Machine (KVM) hypervisor or on Red Hat Enterprise Virtualization Hypervisors.

A race condition flaw, leading to a heap-based memory corruption, was found in spice's worker_update_monitors_config() function, which runs under the QEMU-KVM context on the host. A user in a guest could leverage this flaw to crash the host QEMU-KVM process or, possibly, execute arbitrary code with the privileges of the host QEMU-KVM process. (CVE-2015-3247)

This issue was discovered by Frediano Ziglio of Red Hat.

All spice-server users are advised to upgrade to this updated package, which contains a backported patch to correct this issue.

An updated spice package that fixes one security issue is now available for Red Hat Enterprise Linux 7.

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.

The Simple Protocol for Independent Computing Environments (SPICE) is a remote display protocol for virtual environments. SPICE users can access a virtualized desktop or server from the local system or any system with network access to the server. SPICE is used in Red Hat Enterprise Linux for viewing virtualized guests running on the Kernel-based Virtual Machine (KVM) hypervisor or on Red Hat Enterprise Virtualization Hypervisors.

A race condition flaw, leading to a heap-based memory corruption, was found in spice's worker_update_monitors_config() function, which runs under the QEMU-KVM context on the host. A user in a guest could leverage this flaw to crash the host QEMU-KVM process or, possibly, execute arbitrary code with the privileges of the host QEMU-KVM process. (CVE-2015-3247)

This issue was discovered by Frediano Ziglio of Red Hat.

All spice users are advised to upgrade to this updated package, which contains a backported patch to correct this issue.

Spice was updated to fix three security issues.

The following vulnerabilities were fixed :

  - CVE-2015-3247: heap corruption in the spice server     (bsc#944460)

  - CVE-2015-5261: Guest could have accessed host memory     using crafted images (bsc#948976)

  - CVE-2015-5260: Insufficient validation of surface_id     parameter could have caused a crash (bsc#944460)

Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

Spice was updated to fix four security issues.

The following vulnerabilities were fixed :

  - CVE-2015-3247: heap corruption in the spice server     (bsc#944460)

  - CVE-2015-5261: Guest could have accessed host memory     using crafted images (bsc#948976)

  - CVE-2015-5260: Insufficient validation of surface_id     parameter could have caused a crash (bsc#944460)

  - CVE-2013-4282: Buffer overflow in password handling     (bsc#848279)

Updated rhev-hypervisor packages that fix multiple security issues, several bugs, and add various enhancements are now available.

Red Hat Product Security 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.

The rhev-hypervisor package provides a Red Hat Enterprise Virtualization Hypervisor ISO disk image. The Red Hat Enterprise Virtualization Hypervisor is a dedicated Kernel-based Virtual Machine (KVM) hypervisor. It includes everything necessary to run and manage virtual machines: A subset of the Red Hat Enterprise Linux operating environment and the Red Hat Enterprise Virtualization Agent.

Note: Red Hat Enterprise Virtualization Hypervisor is only available for the Intel 64 and AMD64 architectures with virtualization extensions.

A heap-based buffer overflow flaw was found in the way JasPer decoded JPEG 2000 image files. A specially crafted file could cause an application using JasPer to crash or, possibly, execute arbitrary code. (CVE-2014-8138)

A race condition flaw, leading to a heap-based memory corruption, was found in spice's worker_update_monitors_config() function, which runs under the QEMU-KVM context on the host. A user in a guest could leverage this flaw to crash the host QEMU-KVM process or, possibly, execute arbitrary code with the privileges of the host QEMU-KVM process. (CVE-2015-3247)

A double free flaw was found in the way JasPer parsed ICC color profiles in JPEG 2000 image files. A specially crafted file could cause an application using JasPer to crash or, possibly, execute arbitrary code. (CVE-2014-8137)

It was found that the idle timeout in the Red Hat Enterprise Virtualization Manager Web Admin interface failed to log out a session if a VM has been selected in the VM grid view. This could allow a local attacker to access the web interface if it was left unattended.
(CVE-2015-1841)

Red Hat would like to thank oCERT for reporting CVE-2014-8137 and CVE-2014-8138. oCERT acknowledges Jose Duart of the Google Security Team as the original reporter. The CVE-2015-3247 issue was discovered by Frediano Ziglio of Red Hat. The CVE-2015-1841 issue was discovered by Einav Cohen of Red Hat.

This update also fixes the following bug :

* Previously, installing the Red Hat Enterprise Virtualization Hypervisor 7 RPM on a Red Hat Enterprise Linux 6 host failed, because no such thing was available. Now, the Red Hat Enterprise Virtualization Hypervisor 7 RPM is available in the rhel-6-server-rhevh-rpms channel, and can be installed on a Red Hat Enterprise Linux 6 host. (BZ#1193678)

In addition, this update adds the following enhancement :

* With this release, the Red Hat Enterprise Virtualizaton Hypervisor now includes the drivers for the Dell Shared PERC8 RAID Controller.
(BZ#1186582)

Users of the Red Hat Enterprise Virtualization Hypervisor are advised to upgrade to this updated package.

Spice was updated to fix a heap corruption in the spice server (CVE-2015-3247).

The remote Ubuntu 14.04 LTS host has packages installed that are affected by a vulnerability as referenced in the USN-2736-1 advisory.

    Frediano Ziglio discovered that Spice incorrectly handled monitor configs. A malicious guest could use     this issue to cause a denial of service, or possibly execute arbitrary code on the host as the user     running the QEMU process. In the default installation, when QEMU is used with libvirt, attackers would be     isolated by the libvirt AppArmor profile.

Tenable has extracted the preceding description block directly from the Ubuntu security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Frediano Ziglio of Red Hat discovered a race condition flaw in spice's worker_update_monitors_config() function, leading to a heap-based memory corruption. A malicious user in a guest can take advantage of this flaw to cause a denial of service (QEMU process crash) or, potentially execute arbitrary code on the host with the privileges of the hosting QEMU process.

A race condition flaw, leading to a heap-based memory corruption, was found in spice's worker_update_monitors_config() function, which runs under the QEMU-KVM context on the host. A user in a guest could leverage this flaw to crash the host QEMU-KVM process or, possibly, execute arbitrary code with the privileges of the host QEMU-KVM process. (CVE-2015-3247)

The remote Oracle Linux 6 host has packages installed that are affected by a vulnerability as referenced in the ELSA-2015-1715 advisory.

    [0.12.4-12.1]
    - Avoid race conditions reading monitor configs from guest. This race could       trigger memory corruption host-side       Resolves: rhbz#1239124

Tenable has extracted the preceding description block directly from the Oracle Linux security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote Oracle Linux 7 host has packages installed that are affected by a vulnerability as referenced in the ELSA-2015-1714 advisory.

    [0.12.4-9.1]
    - Avoid race conditions reading monitor configs from guest. This race could       trigger memory corruption host-side       Resolves: rhbz#1239127

Tenable has extracted the preceding description block directly from the Oracle Linux security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

ID	Name	Product	Family	Severity
90995	SUSE SLES11 Security Update : spice (SUSE-SU-2016:1259-1)	Nessus	SuSE Local Security Checks	high
86508	CentOS 6 : spice-server (CESA-2015:1715)	Nessus	CentOS Local Security Checks	medium
86507	CentOS 7 : spice (CESA-2015:1714)	Nessus	CentOS Local Security Checks	medium
86397	SUSE SLED12 / SLES12 Security Update : spice (SUSE-SU-2015:1733-1)	Nessus	SuSE Local Security Checks	high
86392	openSUSE Security Update : spice (openSUSE-2015-657)	Nessus	SuSE Local Security Checks	high
85999	RHEL 6 : rhev-hypervisor (RHSA-2015:1713)	Nessus	Red Hat Local Security Checks	high
85998	openSUSE Security Update : spice (openSUSE-2015-583)	Nessus	SuSE Local Security Checks	medium
85976	RHEL 6 : spice-server (RHSA-2015:1715)	Nessus	Red Hat Local Security Checks	medium
85975	RHEL 7 : spice (RHSA-2015:1714)	Nessus	Red Hat Local Security Checks	medium
85873	Ubuntu 14.04 LTS : Spice vulnerability (USN-2736-1)	Nessus	Ubuntu Local Security Checks	critical
85851	Debian DSA-3354-1 : spice - security update	Nessus	Debian Local Security Checks	medium
85790	Scientific Linux Security Update : spice-server on SL7.x x86_64 (20150903)	Nessus	Scientific Linux Local Security Checks	medium
85789	Scientific Linux Security Update : spice-server on SL6.x x86_64 (20150903)	Nessus	Scientific Linux Local Security Checks	medium
85782	Oracle Linux 6 : spice-server (ELSA-2015-1715)	Nessus	Oracle Linux Local Security Checks	critical
85781	Oracle Linux 7 : spice (ELSA-2015-1714)	Nessus	Oracle Linux Local Security Checks	critical

Detections

Analytics

CVE-2015-3247

critical

Tenable Plugins

high

medium

medium

high

high

high

medium

medium

medium

critical

medium

medium

medium

critical

critical