SB2016110301 - Ubuntu update for NVIDIA graphics drivers
Published: November 3, 2016
Security Bulletin ID
SB2016110301
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities
2
Exploitation vector
Local access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 2 vulnerabilities.
1) Privilege escalation (CVE-ID: CVE-2016-7382)
CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls
CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/U:Green
The vulnerability allows a local user toobtain elevated privileges on the target system.
The weakness occurs in the kernel mode layer (nvidia.ko) handler and exists due to improper permissions control that lets a local attacker gain access to arbitrary physical memory, leading to an escalation of privileges.
Successful exploitation of the vulnerability results in privilege escalation.
2) Privilege escalation (CVE-ID: CVE-2016-7389)
CWE-ID: CWE-20 - Improper input validation
CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/U:Green
The vulnerability allows a local user toobtain elevated privileges on the target system.
The weakness occurs in the kernel mode layer (nvidia.ko) handler for mmap() and exists due to improper input validation. By sending a specially crafted file, a local attacker can gain access to arbitrary physical memory, leading to an escalation of privileges.
Successful exploitation of the vulnerability results in privilege escalation.
Remediation
Install update from vendor's website.