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CVE-2013-0228

Status Candidate

Overview

The xen_iret function in arch/x86/xen/xen-asm_32.S in the Linux kernel before 3.7.9 on 32-bit Xen paravirt_ops platforms does not properly handle an invalid value in the DS segment register, which allows guest OS users to gain guest OS privileges via a crafted application.

Related Files

Mandriva Linux Security Advisory 2013-176
Posted Jun 24, 2013
Authored by Mandriva | Site mandriva.com

Mandriva Linux Security Advisory 2013-176 - Multiple vulnerabilities has been found and corrected in the Linux kernel. The updated packages provides a solution for these security issues.

tags | advisory, kernel, vulnerability
systems | linux, mandriva
advisories | CVE-2012-5532, CVE-2012-6548, CVE-2012-6549, CVE-2013-0216, CVE-2013-0217, CVE-2013-0228, CVE-2013-0290, CVE-2013-0311, CVE-2013-0914, CVE-2013-1763, CVE-2013-1767, CVE-2013-1792, CVE-2013-1796, CVE-2013-1797, CVE-2013-1798, CVE-2013-1848, CVE-2013-1860, CVE-2013-1929, CVE-2013-1979, CVE-2013-2094, CVE-2013-2141, CVE-2013-2146, CVE-2013-2546, CVE-2013-2547, CVE-2013-2548, CVE-2013-2596, CVE-2013-2634, CVE-2013-2635
SHA-256 | ae2f3459ec3bdf76b4bab9b9b1aed7e5bb62fecbaa5d70cf041846a180464d66
Ubuntu Security Notice USN-1808-1
Posted Apr 25, 2013
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 1808-1 - Mathias Krause discovered an information leak in the Linux kernel's getsockname implementation for Logical Link Layer (llc) sockets. A local user could exploit this flaw to examine some of the kernel's stack memory. Mathias Krause discovered information leaks in the Linux kernel's Bluetooth Logical Link Control and Adaptation Protocol (L2CAP) implementation. A local user could exploit these flaws to examine some of the kernel's stack memory. Various other issues were also addressed.

tags | advisory, kernel, local, protocol
systems | linux, ubuntu
advisories | CVE-2012-6542, CVE-2012-6544, CVE-2012-6545, CVE-2012-6546, CVE-2012-6548, CVE-2013-0228, CVE-2013-0349, CVE-2013-1774, CVE-2013-1796, CVE-2012-6542, CVE-2012-6544, CVE-2012-6545, CVE-2012-6546, CVE-2012-6548, CVE-2013-0228, CVE-2013-0349, CVE-2013-1774, CVE-2013-1796
SHA-256 | 552454cec345ffb0bddff287d7b438a2d118cde30da3628cf3b2484c337e4199
Ubuntu Security Notice USN-1805-1
Posted Apr 19, 2013
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 1805-1 - Mathias Krause discovered an information leak in the Linux kernel's getsockname implementation for Logical Link Layer (llc) sockets. A local user could exploit this flaw to examine some of the kernel's stack memory. Mathias Krause discovered information leaks in the Linux kernel's Bluetooth Logical Link Control and Adaptation Protocol (L2CAP) implementation. A local user could exploit these flaws to examine some of the kernel's stack memory. Various other issues were also addressed.

tags | advisory, kernel, local, protocol
systems | linux, ubuntu
advisories | CVE-2012-6542, CVE-2012-6544, CVE-2012-6545, CVE-2012-6546, CVE-2012-6548, CVE-2013-0228, CVE-2013-0349, CVE-2013-1774, CVE-2013-1796, CVE-2012-6542, CVE-2012-6544, CVE-2012-6545, CVE-2012-6546, CVE-2012-6548, CVE-2013-0228, CVE-2013-0349, CVE-2013-1774, CVE-2013-1796
SHA-256 | f8ed7e9055b2ef3f668acf428f2af9356368d82637507c163b57ec94d86ab878
Ubuntu Security Notice USN-1797-1
Posted Apr 9, 2013
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 1797-1 - 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. Emese Revfy discovered that in the Linux kernel signal handlers could leak address information across an exec, making it possible to by pass ASLR (Address Space Layout Randomization). A local user could use this flaw to by pass ASLR to reliably deliver an exploit payload that would otherwise be stopped (by ASLR). Various other issues were also addressed.

tags | advisory, denial of service, kernel, local
systems | linux, ubuntu
advisories | CVE-2013-0228, CVE-2013-0914, CVE-2013-1767, CVE-2013-1792, CVE-2013-2546, CVE-2013-2547, CVE-2013-2548, CVE-2013-0228, CVE-2013-0914, CVE-2013-1767, CVE-2013-1792, CVE-2013-2546, CVE-2013-2547, CVE-2013-2548
SHA-256 | a4a59e154444bb54573d25de54ff8e028d266532aeef1b383f5040e736e717a9
Ubuntu Security Notice USN-1796-1
Posted Apr 9, 2013
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 1796-1 - 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. Emese Revfy discovered that in the Linux kernel signal handlers could leak address information across an exec, making it possible to by pass ASLR (Address Space Layout Randomization). A local user could use this flaw to by pass ASLR to reliably deliver an exploit payload that would otherwise be stopped (by ASLR). Various other issues were also addressed.

tags | advisory, denial of service, kernel, local
systems | linux, ubuntu
advisories | CVE-2013-0228, CVE-2013-0914, CVE-2013-1767, CVE-2013-1792, CVE-2013-2546, CVE-2013-2547, CVE-2013-2548, CVE-2013-0228, CVE-2013-0914, CVE-2013-1767, CVE-2013-1792, CVE-2013-2546, CVE-2013-2547, CVE-2013-2548
SHA-256 | 18caef66a2d5897aa9eeb54f75e1c5a517586d65300e5331cac6b99ca1877e4e
Ubuntu Security Notice USN-1795-1
Posted Apr 9, 2013
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 1795-1 - 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. Emese Revfy discovered that in the Linux kernel signal handlers could leak address information across an exec, making it possible to by pass ASLR (Address Space Layout Randomization). A local user could use this flaw to by pass ASLR to reliably deliver an exploit payload that would otherwise be stopped (by ASLR). Various other issues were also addressed.

tags | advisory, denial of service, kernel, local
systems | linux, ubuntu
advisories | CVE-2013-0228, CVE-2013-0914, CVE-2013-1767, CVE-2013-1792, CVE-2013-2546, CVE-2013-2547, CVE-2013-2548, CVE-2013-0228, CVE-2013-0914, CVE-2013-1767, CVE-2013-1792, CVE-2013-2546, CVE-2013-2547, CVE-2013-2548
SHA-256 | a9481d24bc57e8b82ca02fbcb22d9006dbf916f84232799a870764473cd77d6e
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
SHA-256 | 5d7a43744d14bb2c4370a49a10df8406ceaadc56d80d851f94fd355ecc51efcc
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
SHA-256 | af8c6d029a29cb100ee0cf285e51af80c2f837650a0be518c832cb85e752d2a1
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
SHA-256 | 0af1b33f79ed871ef89c7d8fe33864480cd96aa475060b2761c30a4745e5fe02
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
SHA-256 | c3317eecf58e61478a36793dcf24f32a044bee7a9120041fb1d605b234c9c673
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
SHA-256 | 6fa1613bf864c4c725e20dda548b31d5d8bb3ea21a89fe76b531167d82f4f709
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
SHA-256 | d9c80d06dbf44f9cec8aad3aefc9de07c8b1e5d6a621b1483f49a3b8c2988ce9
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