SB2021072177 - Ubuntu update for nvidia-graphics-drivers-390
Published: July 21, 2021
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 3 vulnerabilities.
1) Reachable Assertion (CVE-ID: CVE-2021-1093)
CWE-ID: CWE-617 - Reachable Assertion
CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to a reachable assertion. A local user can run a specially crafted program to perform a denial of service (DoS) attack.
2) Out-of-bounds read (CVE-ID: CVE-2021-1094)
CWE-ID: CWE-125 - Out-of-bounds read
CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear
The vulnerability allows a local user to gain access to potentially sensitive information or perform a denial of service attack.
The vulnerability exists due to a boundary condition in the kernel mode layer (nvlddmkm.sys) handler for DxgkDdiEscape. A local user can run a specially crafted program to trigger an out-of-bounds read and gain access to sensitive information or crash perform a DoS attack.
3) Untrusted Pointer Dereference (CVE-ID: CVE-2021-1095)
CWE-ID: CWE-822 - Untrusted Pointer Dereference
CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
The vulnerability allows a local user to perform a denial of service attack.
The vulnerability exists due to untrusted pointer dereference in the kernel mode layer (nvlddmkm.sys) handlers for all control calls with embedded parameters. A local user can run a specially crafted program to perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.