SB2013032205 - Buffer overflow in Linux kernel

CSH
CYBERSECURITY HELP
Sign In REGISTER

Main Vulnerability Database SB2013032205

SB2013032205 - Buffer overflow in Linux kernel

Published: March 22, 2013 Updated: August 11, 2020

Security Bulletin ID SB2013032205
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Adjecent network
Highest impact Code execution

Breakdown by Severity

Medium 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) Buffer overflow (CVE-ID: CVE-2013-1796)

CWE-ID: CWE-119 - Memory corruption

CVSSv4: 7.7 [CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]


The vulnerability allows a remote non-authenticated attacker to execute arbitrary code.

The kvm_set_msr_common function in arch/x86/kvm/x86.c in the Linux kernel through 3.8.4 does not ensure a required time_page alignment during an MSR_KVM_SYSTEM_TIME operation, which allows guest OS users to cause a denial of service (buffer overflow and host OS memory corruption) or possibly have unspecified other impact via a crafted application.


Remediation

Install update from vendor's website.

References