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CVE-2011-4097

Status Candidate

Overview

Integer overflow in the oom_badness function in mm/oom_kill.c in the Linux kernel before 3.1.8 on 64-bit platforms allows local users to cause a denial of service (memory consumption or process termination) by using a certain large amount of memory.

Related Files

Ubuntu Security Notice USN-1386-1
Posted Mar 6, 2012
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 1386-1 - The linux kernel did not properly account for PTE pages when deciding which task to kill in out of memory conditions. A local, unprivileged could exploit this flaw to cause a denial of service. A flaw was discovered in the TOMOYO LSM's handling of mount system calls. An unprivileged user could oops the system causing a denial of service. Han-Wen Nienhuys reported a flaw in the FUSE kernel module. A local user who can mount a FUSE file system could cause a denial of service. Various other issues were also addressed.

tags | advisory, denial of service, kernel, local
systems | linux, ubuntu
advisories | CVE-2011-2498, CVE-2011-2518, CVE-2011-3353, CVE-2011-4097, CVE-2011-4622, CVE-2012-0038, CVE-2012-0044, CVE-2012-0207, CVE-2011-2498, CVE-2011-2518, CVE-2011-3353, CVE-2011-4097, CVE-2011-4622, CVE-2012-0038, CVE-2012-0044, CVE-2012-0207
MD5 | 0f5c9c2b1f8cdf33cb82a747daa13630
Ubuntu Security Notice USN-1384-1
Posted Mar 6, 2012
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 1384-1 - A bug was discovered in the Linux kernel's calculation of OOM (Out of memory) scores, that would result in the wrong process being killed. A user could use this to kill the process with the highest OOM score, even if that process belongs to another user or the system. 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, kernel, local
systems | linux, ubuntu
advisories | CVE-2011-4097, CVE-2011-4127, CVE-2011-4622, CVE-2012-0038, CVE-2012-0055, CVE-2012-0207, CVE-2011-4097, CVE-2011-4127, CVE-2011-4622, CVE-2012-0038, CVE-2012-0055, CVE-2012-0207
MD5 | 601dd54cccb27b3b2ac90280b970ac9f
Ubuntu Security Notice USN-1380-1
Posted Feb 29, 2012
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 1380-1 - The linux kernel did not properly account for PTE pages when deciding which task to kill in out of memory conditions. A local, unprivileged could exploit this flaw to cause a denial of service. A flaw was discovered in the TOMOYO LSM's handling of mount system calls. An unprivileged user could oops the system causing a denial of service. A bug was discovered in the Linux kernel's calculation of OOM (Out of memory) scores, that would result in the wrong process being killed. A user could use this to kill the process with the highest OOM score, even if that process belongs to another user or the system. Various other issues were also addressed.

tags | advisory, denial of service, kernel, local
systems | linux, ubuntu
advisories | CVE-2011-2498, CVE-2011-2518, CVE-2011-4097, CVE-2012-0207, CVE-2011-2498, CVE-2011-2518, CVE-2011-4097, CVE-2012-0207
MD5 | cbf670852c7d33349683932e7de814a5
Red Hat Security Advisory 2012-0333-01
Posted Feb 24, 2012
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2012-0333-01 - Updates have been made to the Linux kernel. SG_IO ioctl SCSI requests on partitions or LVM volumes could be passed to the underlying block device, allowing a privileged user to bypass restrictions and gain read and write access to the entire block device. A local, unprivileged user could use an integer overflow flaw in drm_mode_dirtyfb_ioctl() to cause a denial of service or escalate their privileges. A local, unprivileged user could use an integer overflow flaw in drm_mode_dirtyfb_ioctl() to cause a denial of service or escalate their privileges. A local, unprivileged user could use a flaw in the Performance Events implementation to cause a denial of service. Various other issues have also been addressed.

tags | advisory, denial of service, overflow, kernel, local
systems | linux, redhat
advisories | CVE-2011-2918, CVE-2011-4077, CVE-2011-4097, CVE-2011-4110, CVE-2011-4127, CVE-2011-4131, CVE-2011-4132, CVE-2012-0038, CVE-2012-0044, CVE-2012-0207, CVE-2012-0810
MD5 | acd5156e0653e244a607e8d5390d6517
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