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CVE-2012-1146

Status Candidate

Overview

The mem_cgroup_usage_unregister_event function in mm/memcontrol.c in the Linux kernel before 3.2.10 does not properly handle multiple events that are attached to the same eventfd, which allows local users to cause a denial of service (NULL pointer dereference and system crash) or possibly have unspecified other impact by registering memory threshold events.

Related Files

Ubuntu Security Notice USN-1458-1
Posted Jun 1, 2012
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 1458-1 - A flaw was found in the Linux's kernels ext4 file system when mounted with a journal. A local, unprivileged user could exploit this flaw to cause a denial of service. A flaw was discovered in the Linux kernel's cifs file system. An unprivileged local user could exploit this flaw to crash the system leading to a denial of service. H. Peter Anvin reported a flaw in the Linux kernel that could crash the system. A local user could exploit this flaw to crash the system. Various other issues were also addressed.

tags | advisory, denial of service, kernel, local
systems | linux, ubuntu
advisories | CVE-2011-4086, CVE-2012-1090, CVE-2012-1097, CVE-2012-1146, CVE-2012-2100, CVE-2011-4086, CVE-2012-1090, CVE-2012-1097, CVE-2012-1146, CVE-2012-2100
SHA-256 | 351dbb8a5b12503c42271509730cb86bad79aba2f4a02c0d7863862d1499e767
Ubuntu Security Notice USN-1440-1
Posted May 9, 2012
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 1440-1 - A flaw was found in the Linux's kernels ext4 file system when mounted with a journal. A local, unprivileged user could exploit this flaw to cause a denial of service. Sasha Levin discovered a flaw in the permission checking for device assignments requested via the kvm ioctl in the Linux kernel. A local user could use this flaw to crash the system causing a denial of service. Various other issues were also addressed.

tags | advisory, denial of service, kernel, local
systems | linux, ubuntu
advisories | CVE-2011-4086, CVE-2011-4347, CVE-2012-0045, CVE-2012-1090, CVE-2012-1097, CVE-2012-1146, CVE-2012-2100, CVE-2011-4086, CVE-2011-4347, CVE-2012-0045, CVE-2012-1090, CVE-2012-1097, CVE-2012-1146, CVE-2012-2100
SHA-256 | a0bc278da385b31cfe46ccd1ea6aa31d7dd04bed4a06bb0e7207f3a236fdd376
Ubuntu Security Notice USN-1433-1
Posted May 1, 2012
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 1433-1 - A flaw was found in the Linux's kernels ext4 file system when mounted with a journal. A local, unprivileged user could exploit this flaw to cause a denial of service. Sasha Levin discovered a flaw in the permission checking for device assignments requested via the kvm ioctl in the Linux kernel. A local user could use this flaw to crash the system causing a denial of service. Various other issues were also addressed.

tags | advisory, denial of service, kernel, local
systems | linux, ubuntu
advisories | CVE-2011-4086, CVE-2011-4347, CVE-2012-0045, CVE-2012-1090, CVE-2012-1097, CVE-2012-1146, CVE-2012-1179, CVE-2011-4086, CVE-2011-4347, CVE-2012-0045, CVE-2012-1090, CVE-2012-1097, CVE-2012-1146, CVE-2012-1179
SHA-256 | d91c996ccff95c6d7dd3c3aa09f0a4d61c622e96df26b9dd2000e3472ca4feec
Ubuntu Security Notice USN-1431-1
Posted May 1, 2012
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 1431-1 - A flaw was found in the Linux's kernels ext4 file system when mounted with a journal. A local, unprivileged user could exploit this flaw to cause a denial of service. Sasha Levin discovered a flaw in the permission checking for device assignments requested via the kvm ioctl in the Linux kernel. A local user could use this flaw to crash the system causing a denial of service. Various other issues were also addressed.

tags | advisory, denial of service, kernel, local
systems | linux, ubuntu
advisories | CVE-2011-4086, CVE-2011-4347, CVE-2012-0045, CVE-2012-1090, CVE-2012-1097, CVE-2012-1146, CVE-2012-1179, CVE-2011-4086, CVE-2011-4347, CVE-2012-0045, CVE-2012-1090, CVE-2012-1097, CVE-2012-1146, CVE-2012-1179
SHA-256 | 1f6883f19f9a2b1057e35bd8aa804fda23a4a1a09b6012236c8db13c99741688
Ubuntu Security Notice USN-1422-1
Posted Apr 12, 2012
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 1422-1 - Sasha Levin discovered a flaw in the permission checking for device assignments requested via the kvm ioctl in the Linux kernel. A local user could use this flaw to crash the system causing a denial of service. Stephan discovered a flaw in the KVM (kernel-based virtual machine) subsystem of the Linux kernel. A local unprivileged user can crash use this flaw to crash VMs causing a deny of service. Various other issues were also addressed.

tags | advisory, denial of service, kernel, local
systems | linux, ubuntu
advisories | CVE-2011-4347, CVE-2012-0045, CVE-2012-1097, CVE-2012-1146, CVE-2011-4347, CVE-2012-0045, CVE-2012-1097, CVE-2012-1146
SHA-256 | bf943afabe2b178efa14db2ffd2c372b54a5c09d7ebd314672fb98ad08653599
Ubuntu Security Notice USN-1421-1
Posted Apr 12, 2012
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 1421-1 - Sasha Levin discovered a flaw in the permission checking for device assignments requested via the kvm ioctl in the Linux kernel. A local user could use this flaw to crash the system causing a denial of service. Stephan discovered a flaw in the KVM (kernel-based virtual machine) subsystem of the Linux kernel. A local unprivileged user can crash use this flaw to crash VMs causing a deny of service. Various other issues were also addressed.

tags | advisory, denial of service, kernel, local
systems | linux, ubuntu
advisories | CVE-2011-4347, CVE-2012-0045, CVE-2012-1097, CVE-2012-1146, CVE-2011-4347, CVE-2012-0045, CVE-2012-1097, CVE-2012-1146
SHA-256 | 8f5ffc23204a00c78465f73eb061c75c15675500d33d72427c6adbb209274eef
Ubuntu Security Notice USN-1406-1
Posted Mar 28, 2012
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 1406-1 - Sasha Levin discovered a flaw in the permission checking for device assignments requested via the kvm ioctl in the Linux kernel. A local user could use this flaw to crash the system causing a denial of service. Stephan B=C3=A4rwolf discovered a flaw in the KVM (kernel-based virtual machine) subsystem of the Linux kernel. A local unprivileged user can crash use this flaw to crash VMs causing a deny of service. Various other issues were also addressed.

tags | advisory, denial of service, kernel, local
systems | linux, ubuntu
advisories | CVE-2011-4347, CVE-2012-0045, CVE-2012-1097, CVE-2012-1146, CVE-2011-4347, CVE-2012-0045, CVE-2012-1097, CVE-2012-1146
SHA-256 | daec70c79148be4f16814b730209fb95008de030d988a2c710ae8fd2ecd47c4a
Ubuntu Security Notice USN-1407-1
Posted Mar 28, 2012
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 1407-1 - Sasha Levin discovered a flaw in the permission checking for device assignments requested via the kvm ioctl in the Linux kernel. A local user could use this flaw to crash the system causing a denial of service. Stephan B=C3=A4rwolf discovered a flaw in the KVM (kernel-based virtual machine) subsystem of the Linux kernel. A local unprivileged user can crash use this flaw to crash VMs causing a deny of service. Various other issues were also addressed.

tags | advisory, denial of service, kernel, local
systems | linux, ubuntu
advisories | CVE-2011-4347, CVE-2012-0045, CVE-2012-1097, CVE-2012-1146, CVE-2011-4347, CVE-2012-0045, CVE-2012-1097, CVE-2012-1146
SHA-256 | 855ba7a3106fee31b467fdbdd5e12d64132663a4fd40edb37894503c1311c4b8
Ubuntu Security Notice USN-1405-1
Posted Mar 28, 2012
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 1405-1 - Somnath Kotur discovered an error in the Linux kernel's VLAN (virtual lan) and be2net drivers. An attacker on the local network could exploit this flaw to cause a denial of service. Paolo Bonzini discovered a flaw in Linux's handling of the SG_IO ioctl command. A local user, or user in a VM could exploit this flaw to bypass restrictions and gain read/write access to all data on the affected block device. Various other issues were also addressed.

tags | advisory, denial of service, kernel, local
systems | linux, ubuntu
advisories | CVE-2011-3347, CVE-2011-4127, CVE-2011-4347, CVE-2012-0045, CVE-2012-1090, CVE-2012-1097, CVE-2012-1146, CVE-2011-3347, CVE-2011-4127, CVE-2011-4347, CVE-2012-0045, CVE-2012-1090, CVE-2012-1097, CVE-2012-1146
SHA-256 | a1810aa0224d5610b94f222d0d0a5584fecdd12de16b48ca1b2e4fb4599134d2
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