CVE-2023-34327

MEDIUM Year: 2023
CVSS v3 Score
5.5
Medium
Weakness Type
NVD-CWE-Other
View all →

Vulnerability Description

[This CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] AMD CPUs since ~2014 have extensions to normal x86 debugging functionality. Xen supports guests using these extensions. Unfortunately there are errors in Xen's handling of the guest state, leading to denials of service. 1) CVE-2023-34327 - An HVM vCPU can end up operating in the context of a previous vCPUs debug mask state. 2) CVE-2023-34328 - A PV vCPU can place a breakpoint over the live GDT. This allows the PV vCPU to exploit XSA-156 / CVE-2015-8104 and lock up the CPU entirely.

Related Vulnerabilities

CVE-2006-3547

MEDIUM
CVSS:5.5(Medium)

EMC VMware Player allows user-assisted attackers to cause a denial of service (unrecoverable application failure) via a long value of the ide1:0.fileName parameter in the .vmx file of a virtual machin...

NVD-CWE-Other2006

CVE-2007-3732

MEDIUM
CVSS:5.5(Medium)

In Linux 2.6 before 2.6.23, the TRACE_IRQS_ON function in iret_exc calls a C function without ensuring that the segments are set properly. The kernel's %fs needs to be restored before the call in TRAC...

NVD-CWE-Other2007

CVE-2007-6716

MEDIUM
CVSS:5.5(Medium)

fs/direct-io.c in the dio subsystem in the Linux kernel before 2.6.23 does not properly zero out the dio struct, which allows local users to cause a denial of service (OOPS), as demonstrated by a cert...

NVD-CWE-Other2007

CVE-2010-2066

MEDIUM
CVSS:5.5(Medium)

The mext_check_arguments function in fs/ext4/move_extent.c in the Linux kernel before 2.6.35 allows local users to overwrite an append-only file via a MOVE_EXT ioctl call that specifies this file as a...

NVD-CWE-Other2010

CVE-2011-4112

MEDIUM
CVSS:5.5(Medium)

The net subsystem in the Linux kernel before 3.1 does not properly restrict use of the IFF_TX_SKB_SHARING flag, which allows local users to cause a denial of service (panic) by leveraging the CAP_NET_...

NVD-CWE-Other2011

CVE-2011-5321

MEDIUM
CVSS:5.5(Medium)

The tty_open function in drivers/tty/tty_io.c in the Linux kernel before 3.1.1 mishandles a driver-lookup failure, which allows local users to cause a denial of service (NULL pointer dereference and s...

NVD-CWE-Other2011