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CVE-2014-0049

Status Candidate

Overview

Buffer overflow in the complete_emulated_mmio function in arch/x86/kvm/x86.c in the Linux kernel before 3.13.6 allows guest OS users to execute arbitrary code on the host OS by leveraging a loop that triggers an invalid memory copy affecting certain cancel_work_item data.

Related Files

Ubuntu Security Notice USN-2176-1
Posted Apr 26, 2014
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 2176-1 - A flaw was discovered in the Kernel Virtual Machine (KVM) subsystem of the Linux kernel. A guest OS user could exploit this flaw to execute arbitrary code on the host OS. Al Viro discovered an error in how CIFS in the Linux kernel handles uncached write operations. An unprivileged local user could exploit this flaw to cause a denial of service (system crash), obtain sensitive information from kernel memory, or possibly gain privileges. Various other issues were also addressed.

tags | advisory, denial of service, arbitrary, kernel, local
systems | linux, ubuntu
advisories | CVE-2014-0049, CVE-2014-0069
SHA-256 | 0fd82a5dafb7106a5cc61836c60505d61911c8671ff127d0f0dbc78711976927
Ubuntu Security Notice USN-2175-1
Posted Apr 26, 2014
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 2175-1 - A flaw was discovered in the Kernel Virtual Machine (KVM) subsystem of the Linux kernel. A guest OS user could exploit this flaw to execute arbitrary code on the host OS. Al Viro discovered an error in how CIFS in the Linux kernel handles uncached write operations. An unprivileged local user could exploit this flaw to cause a denial of service (system crash), obtain sensitive information from kernel memory, or possibly gain privileges. Various other issues were also addressed.

tags | advisory, denial of service, arbitrary, kernel, local
systems | linux, ubuntu
advisories | CVE-2014-0049, CVE-2014-0069
SHA-256 | 09c34b8b12506da9bd6fc72c2059d1e7329407c33e895ec4e5f280221699ce3b
Ubuntu Security Notice USN-2181-1
Posted Apr 26, 2014
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 2181-1 - A flaw was discovered in the Kernel Virtual Machine (KVM) subsystem of the Linux kernel. A guest OS user could exploit this flaw to execute arbitrary code on the host OS. Al Viro discovered an error in how CIFS in the Linux kernel handles uncached write operations. An unprivileged local user could exploit this flaw to cause a denial of service (system crash), obtain sensitive information from kernel memory, or possibly gain privileges. Various other issues were also addressed.

tags | advisory, denial of service, arbitrary, kernel, local
systems | linux, ubuntu
advisories | CVE-2014-0049, CVE-2014-0069
SHA-256 | 063f2090499833984e6d20908520ead81a01adae15e0e579f1f35034d46fbe21
Ubuntu Security Notice USN-2180-1
Posted Apr 26, 2014
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 2180-1 - A flaw was discovered in the Kernel Virtual Machine (KVM) subsystem of the Linux kernel. A guest OS user could exploit this flaw to execute arbitrary code on the host OS. Al Viro discovered an error in how CIFS in the Linux kernel handles uncached write operations. An unprivileged local user could exploit this flaw to cause a denial of service (system crash), obtain sensitive information from kernel memory, or possibly gain privileges. Various other issues were also addressed.

tags | advisory, denial of service, arbitrary, kernel, local
systems | linux, ubuntu
advisories | CVE-2014-0049, CVE-2014-0069
SHA-256 | 714d749baacff1292847cf6b6d5ff43bb068212cc18722f306a49aee325ae36f
Ubuntu Security Notice USN-2179-1
Posted Apr 26, 2014
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 2179-1 - A flaw was discovered in the Kernel Virtual Machine (KVM) subsystem of the Linux kernel. A guest OS user could exploit this flaw to execute arbitrary code on the host OS. Al Viro discovered an error in how CIFS in the Linux kernel handles uncached write operations. An unprivileged local user could exploit this flaw to cause a denial of service (system crash), obtain sensitive information from kernel memory, or possibly gain privileges. Various other issues were also addressed.

tags | advisory, denial of service, arbitrary, kernel, local
systems | linux, ubuntu
advisories | CVE-2014-0049, CVE-2014-0069
SHA-256 | 4814cab0dd641289297f9390a746138aaf52735b4c33e0e473f6109382b184d8
Ubuntu Security Notice USN-2178-1
Posted Apr 26, 2014
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 2178-1 - A flaw was discovered in the Kernel Virtual Machine (KVM) subsystem of the Linux kernel. A guest OS user could exploit this flaw to execute arbitrary code on the host OS. Al Viro discovered an error in how CIFS in the Linux kernel handles uncached write operations. An unprivileged local user could exploit this flaw to cause a denial of service (system crash), obtain sensitive information from kernel memory, or possibly gain privileges. Various other issues were also addressed.

tags | advisory, denial of service, arbitrary, kernel, local
systems | linux, ubuntu
advisories | CVE-2014-0049, CVE-2014-0069
SHA-256 | 48734ec03f1b121f89a30d43df04221ff921f24ff915939d85727eb0d2f85c39
Ubuntu Security Notice USN-2177-1
Posted Apr 26, 2014
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 2177-1 - A flaw was discovered in the Kernel Virtual Machine (KVM) subsystem of the Linux kernel. A guest OS user could exploit this flaw to execute arbitrary code on the host OS. Al Viro discovered an error in how CIFS in the Linux kernel handles uncached write operations. An unprivileged local user could exploit this flaw to cause a denial of service (system crash), obtain sensitive information from kernel memory, or possibly gain privileges. Various other issues were also addressed.

tags | advisory, denial of service, arbitrary, kernel, local
systems | linux, ubuntu
advisories | CVE-2014-0049, CVE-2014-0069
SHA-256 | ec115bf169eadba7b210bd5db5be22d3f10cc41d0ea9a532653899ba839914c9
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