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CVE-2012-0038

Status Candidate

Overview

Integer overflow in the xfs_acl_from_disk function in fs/xfs/xfs_acl.c in the Linux kernel before 3.1.9 allows local users to cause a denial of service (panic) via a filesystem with a malformed ACL, leading to a heap-based buffer overflow.

Related Files

Red Hat Security Advisory 2012-1042-01
Posted Jun 26, 2012
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2012-1042-01 - The kernel packages contain the Linux kernel, the core of any Linux operating system. 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. It was found that the kvm_vm_ioctl_assign_device() function in the KVM subsystem of a Linux kernel did not check if the user requesting device assignment was privileged or not. A local, unprivileged user on the host could assign unused PCI devices, or even devices that were in use and whose resources were not properly claimed by the respective drivers, which could result in the host crashing.

tags | advisory, denial of service, overflow, kernel, local
systems | linux, redhat
advisories | CVE-2011-4347, CVE-2012-0038, CVE-2012-0044, CVE-2012-1097, CVE-2012-1179
MD5 | 058f862281eddc3a6f870b2ce0a68546
Ubuntu Security Notice USN-1394-1
Posted Mar 7, 2012
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 1394-1 - Aristide Fattori and Roberto Paleari reported a flaw in the Linux kernel's handling of IPv4 icmp packets. A remote user could exploit this to cause a denial of service. Vegard Nossum discovered a leak in the kernel's inotify_init() system call. A local, unprivileged user could exploit this to cause a denial of service. An error was discovered in the kernel's handling of CUSE (Character device in Userspace). A local attacker might exploit this flaw to escalate privilege, if access to /dev/cuse has been modified to allow non-root users. Various other issues were also addressed.

tags | advisory, remote, denial of service, kernel, local, root
systems | linux, ubuntu
advisories | CVE-2011-1927, CVE-2010-4250, CVE-2010-4650, CVE-2011-0006, CVE-2011-0716, CVE-2011-1476, CVE-2011-1477, CVE-2011-1759, CVE-2011-2182, CVE-2011-3619, CVE-2011-4621, CVE-2012-0038, CVE-2012-0044, CVE-2010-4250, CVE-2010-4650, CVE-2011-0006, CVE-2011-0716, CVE-2011-1476, CVE-2011-1477, CVE-2011-1759, CVE-2011-1927, CVE-2011-2182, CVE-2011-3619, CVE-2011-4621, CVE-2012-0038, CVE-2012-0044
MD5 | 949df2a21262fb8d6a914e7f3f1087e3
Ubuntu Security Notice USN-1391-1
Posted Mar 7, 2012
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 1391-1 - A flaw was discovered in the XFS filesystem. If a local user mounts a specially crafted XFS image it could potential execute arbitrary code on the system.

tags | advisory, arbitrary, local
systems | linux, ubuntu
advisories | CVE-2012-0038
MD5 | c2b530d3efba735611e52f2698e95e85
Ubuntu Security Notice USN-1389-1
Posted Mar 7, 2012
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 1389-1 - 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. 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-2011-4127, CVE-2011-4347, CVE-2011-4622, CVE-2012-0038, CVE-2012-0879, CVE-2011-4127, CVE-2011-4347, CVE-2011-4622, CVE-2012-0038, CVE-2012-0879
MD5 | 7524468bd6b3bc1f8036dba3bffd7cd1
Red Hat Security Advisory 2012-0350-01
Posted Mar 6, 2012
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2012-0350-01 - The kernel packages contain the Linux kernel, the core of any Linux operating system. A buffer overflow flaw was found in the way the Linux kernel's XFS file system implementation handled links with overly long path names. A local, unprivileged user could use this flaw to cause a denial of service or escalate their privileges by mounting a specially-crafted disk.

tags | advisory, denial of service, overflow, kernel, local
systems | linux, redhat
advisories | CVE-2011-4077, CVE-2011-4081, CVE-2011-4132, CVE-2011-4347, CVE-2011-4594, CVE-2011-4611, CVE-2011-4622, CVE-2012-0038, CVE-2012-0045, CVE-2012-0207
MD5 | 359dbdebd900cec5fe4f8ee48ae3f1ec
Ubuntu Security Notice USN-1388-1
Posted Mar 6, 2012
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 1388-1 - 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. A flaw was found in KVM's Programmable Interval Timer (PIT). When a virtual interrupt control is not available a local user could use this to cause a denial of service by starting a timer. Various other issues were also addressed.

tags | advisory, denial of service, local
systems | linux, ubuntu
advisories | CVE-2011-4127, CVE-2011-4622, CVE-2012-0038, CVE-2011-4127, CVE-2011-4622, CVE-2012-0038
MD5 | 42f8383ce233acca88536b742447984e
Ubuntu Security Notice USN-1387-1
Posted Mar 6, 2012
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 1387-1 - Aristide Fattori and Roberto Paleari reported a flaw in the Linux kernel's handling of IPv4 icmp packets. A remote user could exploit this to cause a denial of service. A flaw was found in the Linux Ethernet bridge's handling of IGMP (Internet Group Management Protocol) packets. An unprivileged local user could exploit this flaw to crash the system. 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, remote, denial of service, kernel, local, protocol
systems | linux, ubuntu
advisories | CVE-2011-1927, CVE-2011-0716, CVE-2011-3353, CVE-2011-3619, CVE-2011-4622, CVE-2012-0038, CVE-2012-0044, CVE-2011-0716, CVE-2011-1927, CVE-2011-3353, CVE-2011-3619, CVE-2011-4622, CVE-2012-0038, CVE-2012-0044
MD5 | b0c9ddd8933c790af07fb3fcdbddec1e
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
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
Ubuntu Security Notice USN-1364-1
Posted Feb 13, 2012
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 1364-1 - A flaw was discovered in the XFS filesystem. If a local user mounts a specially crafted XFS image it could potential execute arbitrary code on the system. Andy Whitcroft discovered a that the Overlayfs filesystem was not doing the extended permission checks needed by cgroups and Linux Security Modules (LSMs). A local user could exploit this to by-pass security policy and access files that should not be accessible. Various other issues were also addressed.

tags | advisory, arbitrary, local
systems | linux, ubuntu
advisories | CVE-2012-0038, CVE-2012-0055, CVE-2012-0056, CVE-2012-0207, CVE-2012-0038, CVE-2012-0055, CVE-2012-0056, CVE-2012-0207
MD5 | 81c901a7230d414992297f7d2373c766
Ubuntu Security Notice USN-1363-1
Posted Feb 13, 2012
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 1363-1 - A flaw was found in KVM's Programmable Interval Timer (PIT). When a virtual interrupt control is not available a local user could use this to cause a denial of service by starting a timer. A flaw was discovered in the XFS filesystem. If a local user mounts a specially crafted XFS image it could potential execute arbitrary code on the system. Andy Whitcroft discovered a that the Overlayfs filesystem was not doing the extended permission checks needed by cgroups and Linux Security Modules (LSMs). A local user could exploit this to by-pass security policy and access files that should not be accessible. Various other issues were also addressed.

tags | advisory, denial of service, arbitrary, local
systems | linux, ubuntu
advisories | CVE-2011-4622, CVE-2012-0038, CVE-2012-0055, CVE-2012-0207, CVE-2011-4622, CVE-2012-0038, CVE-2012-0055, CVE-2012-0207
MD5 | 5272d68bea7e1475f014348307a446fd
Ubuntu Security Notice USN-1362-1
Posted Feb 13, 2012
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 1362-1 - 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. A flaw was found in KVM's Programmable Interval Timer (PIT). When a virtual interrupt control is not available a local user could use this to cause a denial of service by starting a timer. A flaw was discovered in the XFS filesystem. If a local user mounts a specially crafted XFS image it could potential execute arbitrary code on the system. Various other issues were also addressed.

tags | advisory, denial of service, arbitrary, kernel, local
systems | linux, ubuntu
advisories | CVE-2011-3353, CVE-2011-4622, CVE-2012-0038, CVE-2012-0044, CVE-2011-3353, CVE-2011-4622, CVE-2012-0038, CVE-2012-0044
MD5 | c8bd4f245aecf49a5f4e2269db3087ad
Ubuntu Security Notice USN-1361-1
Posted Feb 13, 2012
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 1361-1 - 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. A flaw was found in KVM's Programmable Interval Timer (PIT). When a virtual interrupt control is not available a local user could use this to cause a denial of service by starting a timer. A flaw was discovered in the XFS filesystem. If a local user mounts a specially crafted XFS image it could potential execute arbitrary code on the system. Various other issues were also addressed.

tags | advisory, denial of service, arbitrary, kernel, local
systems | linux, ubuntu
advisories | CVE-2011-3353, CVE-2011-4622, CVE-2012-0038, CVE-2012-0044, CVE-2011-3353, CVE-2011-4622, CVE-2012-0038, CVE-2012-0044
MD5 | fa193661ffe5a12b89efc1f4e8c772b7
Ubuntu Security Notice USN-1356-1
Posted Feb 7, 2012
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 1356-1 - A flaw was discovered in the XFS filesystem. If a local user mounts a specially crafted XFS image it could potential execute arbitrary code on the system. Chen Haogang discovered an integer overflow that could result in memory corruption. A local unprivileged user could use this to crash the system. A flaw was found in the linux kernels IPv4 IGMP query processing. A remote attacker could exploit this to cause a denial of service. Various other issues were also addressed.

tags | advisory, remote, denial of service, overflow, arbitrary, kernel, local
systems | linux, ubuntu
advisories | CVE-2012-0038, CVE-2012-0044, CVE-2012-0207, CVE-2012-0038, CVE-2012-0044, CVE-2012-0207
MD5 | 6347ecda19b460ba56d66884c67a8ef9
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