kernel: xen: userspace alterable %ds access in xen_iret()

The xeniret function in arch/x86/xen/xen-asm32.S in the Linux kernel before 3.7.9 on 32-bit Xen paravirtops 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...

kernel: stack corruption in xen_failsafe_callback()

The xenfailsafecallback function in Xen for the Linux kernel 2.6.23 and other versions, when running a 32-bit PVOPS guest, allows local users to cause a denial of service guest crash by triggering an iret fault, leading to use of an incorrect stack pointer and stack corruption...

DEBIAN-CVE-2013-0190

The xenfailsafecallback function in Xen for the Linux kernel 2.6.23 and other versions, when running a 32-bit PVOPS guest, allows local users to cause a denial of service guest crash by triggering an iret fault, leading to use of an incorrect stack pointer and stack corruption...

CVE-2013-0190

The xenfailsafecallback function in Xen for the Linux kernel 2.6.23 and other versions, when running a 32-bit PVOPS guest, allows local users to cause a denial of service guest crash by triggering an iret fault, leading to use of an incorrect stack pointer and stack corruption...

CVE-2013-0190

The xenfailsafecallback function in Xen for the Linux kernel 2.6.23 and other versions, when running a 32-bit PVOPS guest, allows local users to cause a denial of service guest crash by triggering an iret fault, leading to use of an incorrect stack pointer and stack corruption...

CVE-2013-0190: Improper Input Validation

The xenfailsafecallback function in Xen for the Linux kernel 2.6.23 and other versions, when running a 32-bit PVOPS guest, allows local users to cause a denial of service guest crash by triggering an iret fault, leading to use of an incorrect stack pointer and stack corruption...

Linux stack corruption in xen_failsafe_callback for 32bit PVOPS guests.

ISSUE DESCRIPTION xenfailsafecallback incorrectly sets up its stack if an iret fault is injected by the hypervisor. IMPACT Malicious or buggy unprivileged userspace can cause the guest kernel to crash, or operate erroneously. VULNERABLE SYSTEMS All 32bit PVOPS versions of Linux are affected, sinc...

CVE-2013-0190

The xenfailsafecallback function in Xen for the Linux kernel 2.6.23 and other versions, when running a 32-bit PVOPS guest, allows local users to cause a denial of service guest crash by triggering an iret fault, leading to use of an incorrect stack pointer and stack corruption...

UBUNTU-CVE-2013-0190

The xenfailsafecallback function in Xen for the Linux kernel 2.6.23 and other versions, when running a 32-bit PVOPS guest, allows local users to cause a denial of service guest crash by triggering an iret fault, leading to use of an incorrect stack pointer and stack corruption...

Microsoft Windows NT200020032008XPVista7 - KiTrap0D User Mode to Ring Escalation (MS10-015)

Microsoft Windows NT200020032008XPVista7 - KiTrap0D User Mode to Ring Escalation MS10-015 Exploit-DB Mirror: https://github.com/offensive-security/exploitdb-bin-sploits/raw/master/bin-sploits/11199.zip KiTrap0D.zip E-DB Note: Make sure to run "vdmallowed.exe" pre-compiled inside the subfolder...

Windows NT User Mode to Ring 0 Escalation Vulnerability

Exploit for unknown platform in category local exploits ======================================================= Windows NT User Mode to Ring 0 Escalation Vulnerability ======================================================= Microsoft Windows NT GP Trap Handler Allows Users to Switch Kernel Stack...

CVE-2009-2793: Undefined Security Weakness

The kernel in NetBSD, probably 5.0.1 and earlier, on x86 platforms does not properly handle a pre-commit failure of the iret instruction, which might allow local users to gain privileges via vectors related to a tempEIP pseudocode variable that is outside of the code-segment limits...

NetBSD IRET通用保护错误处理本地权限提升漏洞

BUGTRAQ ID: 36430 CVECAN ID: CVE-2009-2793 NetBSD是一款免费开放源代码的UNIX性质的操作系统。 在Intel架构上，操作系统内核完成了对中断或异常的服务后通常会使用iret返回到用户态。iret指令会恢复执行继续所需的上下文，如代码段、指令指针、标记等。在受保护模式中iret会分为两个不同的阶段执行，分别为提交前阶段（pre-commit，权限级别改变之前）和提交后阶段（post- commit，权限级别改变后）。可在以下伪代码中找到提交点： IF new mode != 64-Bit Mode THEN IF tempEIP is no...

NetBSD 5.0.1 - 'IRET' General Protection Fault Handling Privilege Escalation

/ source: https://www.securityfocus.com/bid/36430/info NetBSD is prone to a local privilege-escalation vulnerability. A local attacker may exploit this issue to cause the kernel stack to become desynchronized. This may allow the attacker to gain elevated privileges or may aid in further attacks. ...

NetBSD 5.0.1 - IRET General Protection Fault Handling Privilege Escalation

NetBSD 5.0.1 - IRET General Protection Fault Handling Privilege Escalation / source: https://www.securityfocus.com/bid/36430/info NetBSD is prone to a local privilege-escalation vulnerability. A local attacker may exploit this issue to cause the kernel stack to become desynchronized. This may all...

VMware产品Trap Flag处理本地权限提升漏洞

BUGTRAQ ID: 32168 CVECAN ID: CVE-2008-4915 VMWare是一款虚拟PC软件，允许在一台机器上同时运行两个或多个Windows、DOS、LINUX系统。 VMWare在处理指令的执行时存在问题，攻击者可能利用此漏洞提升自己的权限。如果在设置了Trap Flag的情况下出现中断，正确的CPU将执行转移到中断处理器之前会清除Trap Flag。对于受影响的VMware版本，如果内核态IRET设置了Trap Flag的话，则在执行单字节INT 3指令的时候Trap Flag在模式切换后仍继续存在，这造成的结果就是如果能够导致内核通过IRET设置Trap...

CVE-2007-2455

Parallels allows local users to cause a denial of service virtual machine abort via 1 certain INT instructions, as demonstrated by INT 0xAA; 2 an IRET instruction when an invalid address is at the top of the stack; 3 a malformed MOVNTI instruction, as demonstrated by using a register as a...

Design/Logic Flaw

Parallels allows local users to cause a denial of service virtual machine abort via 1 certain INT instructions, as demonstrated by INT 0xAA; 2 an IRET instruction when an invalid address is at the top of the stack; 3 a malformed MOVNTI instruction, as demonstrated by using a register as a...

CVE-2007-2455: Undefined Security Weakness

Parallels allows local users to cause a denial of service virtual machine abort via 1 certain INT instructions, as demonstrated by INT 0xAA; 2 an IRET instruction when an invalid address is at the top of the stack; 3 a malformed MOVNTI instruction, as demonstrated by using a register as a...

CVE-2006-5755: Undefined Security Weakness

Linux kernel before 2.6.18, when running on x8664 systems, does not properly save or restore EFLAGS during a context switch, which allows local users to cause a denial of service crash by causing SYSENTER to set an NT flag, which can trigger a crash on the IRET of the next task...