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CVE-2013-0268

Status Candidate

Overview

The msr_open function in arch/x86/kernel/msr.c in the Linux kernel before 3.7.6 allows local users to bypass intended capability restrictions by executing a crafted application as root, as demonstrated by msr32.c.

Related Files

Unisphere Central Redirect / Access Bypass / DoS / Updates
Posted Jan 30, 2015
Site emc.com

Unisphere Central versions prior to 4.0 suffer from a large amount of security vulnerabilities and an update has been released that includes a fix for an unvalidated redirect issue along with various embedded component vulnerabilities.

tags | advisory, vulnerability
advisories | CVE-2010-5107, CVE-2010-5298, CVE-2011-0020, CVE-2011-0064, CVE-2011-3389, CVE-2012-2137, CVE-2012-5885, CVE-2012-6085, CVE-2012-6548, CVE-2012-6549, CVE-2013-0160, CVE-2013-0216, CVE-2013-0231, CVE-2013-0268, CVE-2013-0311, CVE-2013-0349, CVE-2013-0913, CVE-2013-0914, CVE-2013-1767, CVE-2013-1772, CVE-2013-1774, CVE-2013-1792, CVE-2013-1796, CVE-2013-1797, CVE-2013-1798, CVE-2013-1848, CVE-2013-1860, CVE-2013-1899
MD5 | 77b7ca247803592598a9f050a2092ac7
Linux Kernel MSR Driver Privilege Escalation
Posted Aug 4, 2013
Authored by Brad Spengler

Proof of concept exploit for the /dev/cpu/*/msr race condition that allows for privilege escalation in Linux kernels prior to 3.7.6.

tags | exploit, kernel, proof of concept
systems | linux
advisories | CVE-2013-0268
MD5 | fbb8c5cd4fa0a715a5bf61cb08e08e24
Ubuntu Security Notice USN-1781-1
Posted Mar 26, 2013
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 1781-1 - Andrew Jones discovered a flaw with the xen_iret function in Linux kernel's Xen virtualizeation. In the 32-bit Xen paravirt platform an unprivileged guest OS user could exploit this flaw to cause a denial of service (crash the system) or gain guest OS privilege. A flaw was reported in the permission checks done by the Linux kernel for /dev/cpu/*/msr. A local root user with all capabilities dropped could exploit this flaw to execute code with full root capabilities. Various other issues were also addressed.

tags | advisory, denial of service, kernel, local, root
systems | linux, ubuntu
advisories | CVE-2013-0228, CVE-2013-0268, CVE-2013-0311, CVE-2013-0313, CVE-2013-0349, CVE-2013-1774, CVE-2013-0228, CVE-2013-0268, CVE-2013-0311, CVE-2013-0313, CVE-2013-0349, CVE-2013-1774
MD5 | cc1f51132107651d4f6c9ac23e0388ff
Ubuntu Security Notice USN-1778-1
Posted Mar 22, 2013
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 1778-1 - Andrew Jones discovered a flaw with the xen_iret function in Linux kernel's Xen virtualizeation. In the 32-bit Xen paravirt platform an unprivileged guest OS user could exploit this flaw to cause a denial of service (crash the system) or gain guest OS privilege. A flaw was reported in the permission checks done by the Linux kernel for /dev/cpu/*/msr. A local root user with all capabilities dropped could exploit this flaw to execute code with full root capabilities. Various other issues were also addressed.

tags | advisory, denial of service, kernel, local, root
systems | linux, ubuntu
advisories | CVE-2013-0228, CVE-2013-0268, CVE-2013-0311, CVE-2013-0349, CVE-2013-1773, CVE-2013-0228, CVE-2013-0268, CVE-2013-0311, CVE-2013-0349, CVE-2013-1773
MD5 | be3270398506e6ff2a7824cd4e5ef20b
Ubuntu Security Notice USN-1776-1
Posted Mar 22, 2013
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 1776-1 - A flaw was reported in the permission checks done by the Linux kernel for /dev/cpu/*/msr. A local root user with all capabilities dropped could exploit this flaw to execute code with full root capabilities. A flaw was discovered in the Linux kernels handling of memory ranges with PROT_NONE when transparent hugepages are in use. An unprivileged local user could exploit this flaw to cause a denial of service (crash the system). Various other issues were also addressed.

tags | advisory, denial of service, kernel, local, root
systems | linux, ubuntu
advisories | CVE-2013-0268, CVE-2013-0309, CVE-2013-1773, CVE-2013-0268, CVE-2013-0309, CVE-2013-1773
MD5 | 852743fc8ba22415a2196a235c48eb52
Ubuntu Security Notice USN-1775-1
Posted Mar 22, 2013
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 1775-1 - A flaw was reported in the permission checks done by the Linux kernel for /dev/cpu/*/msr. A local root user with all capabilities dropped could exploit this flaw to execute code with full root capabilities. A flaw was discovered in the Linux kernels handling of memory ranges with PROT_NONE when transparent hugepages are in use. An unprivileged local user could exploit this flaw to cause a denial of service (crash the system). Various other issues were also addressed.

tags | advisory, denial of service, kernel, local, root
systems | linux, ubuntu
advisories | CVE-2013-0268, CVE-2013-0309, CVE-2013-1773, CVE-2013-0268, CVE-2013-0309, CVE-2013-1773
MD5 | 8a65e5c014300775df25851febb8669a
Ubuntu Security Notice USN-1767-1
Posted Mar 19, 2013
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 1767-1 - Andrew Cooper of Citrix reported a Xen stack corruption in the Linux kernel. An unprivileged user in a 32bit PVOPS guest can cause the guest kernel to crash, or operate erroneously. A failure to validate input was discovered in the Linux kernel's Xen netback (network backend) driver. A user in a guest OS may exploit this flaw to cause a denial of service to the guest OS and other guest domains. Various other issues were also addressed.

tags | advisory, denial of service, kernel
systems | linux, ubuntu
advisories | CVE-2013-0190, CVE-2013-0216, CVE-2013-0217, CVE-2013-0228, CVE-2013-0231, CVE-2013-0268, CVE-2013-0311, CVE-2013-0313, CVE-2013-0349, CVE-2013-1774, CVE-2013-0190, CVE-2013-0216, CVE-2013-0217, CVE-2013-0228, CVE-2013-0231, CVE-2013-0268, CVE-2013-0311, CVE-2013-0313, CVE-2013-0349, CVE-2013-1774
MD5 | b4722f2bde05c5e4fd7583d00fd3895f
Ubuntu Security Notice USN-1769-1
Posted Mar 19, 2013
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 1769-1 - Andrew Cooper of Citrix reported a Xen stack corruption in the Linux kernel. An unprivileged user in a 32bit PVOPS guest can cause the guest kernel to crash, or operate erroneously. A failure to validate input was discovered in the Linux kernel's Xen netback (network backend) driver. A user in a guest OS may exploit this flaw to cause a denial of service to the guest OS and other guest domains. Various other issues were also addressed.

tags | advisory, denial of service, kernel
systems | linux, ubuntu
advisories | CVE-2013-0190, CVE-2013-0216, CVE-2013-0217, CVE-2013-0231, CVE-2013-0268, CVE-2013-0290, CVE-2013-0311, CVE-2013-0313, CVE-2013-0349, CVE-2013-0190, CVE-2013-0216, CVE-2013-0217, CVE-2013-0231, CVE-2013-0268, CVE-2013-0290, CVE-2013-0311, CVE-2013-0313, CVE-2013-0349
MD5 | 621ad23418a09c1a5104ab8026ffc2de
Ubuntu Security Notice USN-1768-1
Posted Mar 19, 2013
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 1768-1 - Andrew Cooper of Citrix reported a Xen stack corruption in the Linux kernel. An unprivileged user in a 32bit PVOPS guest can cause the guest kernel to crash, or operate erroneously. A failure to validate input was discovered in the Linux kernel's Xen netback (network backend) driver. A user in a guest OS may exploit this flaw to cause a denial of service to the guest OS and other guest domains. Various other issues were also addressed.

tags | advisory, denial of service, kernel
systems | linux, ubuntu
advisories | CVE-2013-0190, CVE-2013-0216, CVE-2013-0217, CVE-2013-0231, CVE-2013-0268, CVE-2013-0290, CVE-2013-0311, CVE-2013-0313, CVE-2013-0349, CVE-2013-0190, CVE-2013-0216, CVE-2013-0217, CVE-2013-0231, CVE-2013-0268, CVE-2013-0290, CVE-2013-0311, CVE-2013-0313, CVE-2013-0349
MD5 | fbd60687abd2426f74b9a753d71dcf16
Ubuntu Security Notice USN-1760-1
Posted Mar 13, 2013
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 1760-1 - A failure to validate input was discovered in the Linux kernel's Xen netback (network backend) driver. A user in a guest OS may exploit this flaw to cause a denial of service to the guest OS and other guest domains. A memory leak was discovered in the Linux kernel's Xen netback (network backend) driver. A user in a guest OS could trigger this flaw to cause a denial of service on the system. Various other issues were also addressed.

tags | advisory, denial of service, kernel, memory leak
systems | linux, ubuntu
advisories | CVE-2013-0216, CVE-2013-0217, CVE-2013-0228, CVE-2013-0268, CVE-2013-0311, CVE-2013-0349, CVE-2013-1773, CVE-2013-0216, CVE-2013-0217, CVE-2013-0228, CVE-2013-0268, CVE-2013-0311, CVE-2013-0349, CVE-2013-1773
MD5 | bf974e96001c4add92de0057fa912944
Red Hat Security Advisory 2013-0630-01
Posted Mar 12, 2013
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2013-0630-01 - The kernel packages contain the Linux kernel, the core of any Linux operating system. A flaw was found in the way the xen_iret() function in the Linux kernel used the DS register. A local, unprivileged user in a 32-bit, para-virtualized Xen hypervisor guest could use this flaw to crash the guest or, potentially, escalate their privileges.

tags | advisory, kernel, local
systems | linux, redhat
advisories | CVE-2013-0228, CVE-2013-0268
MD5 | efac28bcc10f135ebd19ca74e770608c
Red Hat Security Advisory 2013-0621-01
Posted Mar 11, 2013
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2013-0621-01 - The kernel packages contain the Linux kernel, the core of any Linux operating system. A flaw was found in the way file permission checks for the "/dev/cpu/[x]/msr" files were performed in restricted root environments. A local user with the ability to write to these files could use this flaw to escalate their privileges to kernel level, for example, by writing to the SYSENTER_EIP_MSR register.

tags | advisory, kernel, local, root
systems | linux, redhat
advisories | CVE-2013-0268, CVE-2013-0871
MD5 | 045b34d2120785c77b90c802233ee097
Red Hat Security Advisory 2013-0622-01
Posted Mar 11, 2013
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2013-0622-01 - The kernel-rt packages contain the Linux kernel, the core of any Linux operating system. A flaw was found in the way file permission checks for the "/dev/cpu/[x]/msr" files were performed in restricted root environments. A local user with the ability to write to these files could use this flaw to escalate their privileges to kernel level, for example, by writing to the SYSENTER_EIP_MSR register.

tags | advisory, kernel, local, root
systems | linux, redhat
advisories | CVE-2012-4542, CVE-2013-0268, CVE-2013-0290, CVE-2013-0871, CVE-2013-1763
MD5 | a1843242502a05a5aeacfc1142749011
Ubuntu Security Notice USN-1756-1
Posted Mar 7, 2013
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 1756-1 - A failure to validate input was discovered in the Linux kernel's Xen netback (network backend) driver. A user in a guest OS may exploit this flaw to cause a denial of service to the guest OS and other guest domains. A memory leak was discovered in the Linux kernel's Xen netback (network backend) driver. A user in a guest OS could trigger this flaw to cause a denial of service on the system. Various other issues were also addressed.

tags | advisory, denial of service, kernel, memory leak
systems | linux, ubuntu
advisories | CVE-2013-0216, CVE-2013-0217, CVE-2013-0228, CVE-2013-0268, CVE-2013-0311, CVE-2013-0349, CVE-2013-1773, CVE-2013-0216, CVE-2013-0217, CVE-2013-0228, CVE-2013-0268, CVE-2013-0311, CVE-2013-0349, CVE-2013-1773
MD5 | 76f0c9df3c89b3fe3d8bc62fe88a91c9
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