Ubuntu update for NVIDIA graphics drivers



Risk Low
Patch available YES
Number of vulnerabilities 3
CVE-ID CVE-2017-0350
CVE-2017-0351
CVE-2017-0352
CWE-ID CWE-476
CWE-284
Exploitation vector Local
Public exploit Public exploit code for vulnerability #1 is available.
Public exploit code for vulnerability #2 is available.
Vulnerable software
 Ubuntu
Operating systems & Components / Operating system

Vendor Canonical Ltd.

Security Bulletin

This security bulletin contains information about 3 vulnerabilities.

1) Null pointer dereference

EUVDB-ID: #VU6772

Risk: Low

CVSSv4.0: 7.1 [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:Clear]

CVE-ID: CVE-2017-0350

CWE-ID: CWE-476 - NULL Pointer Dereference

Exploit availability: No

Description

The vulnerability allows a local attacker to cause DoS condition or gain elevated privileges on the target system.

The weakness exists in the kernel mode layer handler due to improper validation of a value passed from a user to the driver. A local attacker can provide a specially crafted value that is used in an offset calculation, trigger NULL pointer dereference and cause denial of service or potentially escalate privileges.

Successful exploitation of the vulnerability may result in full access to the system.

Mitigation

Ubuntu 17.04:
nvidia-367 375.66-0ubuntu0.17.04.1
nvidia-375 375.66-0ubuntu0.17.04.1
Ubuntu 16.10:
nvidia-367 375.66-0ubuntu0.16.10.1
nvidia-375 375.66-0ubuntu0.16.10.1
Ubuntu 16.04 LTS:
nvidia-367 375.66-0ubuntu0.16.04.1
nvidia-375 375.66-0ubuntu0.16.04.1
Ubuntu 14.04 LTS:
nvidia-367 375.66-0ubuntu0.14.04.1
nvidia-375 375.66-0ubuntu0.14.04.1

Vulnerable software versions

Ubuntu: 14.04 - 17.04

CPE2.3 External links

https://www.ubuntu.com/usn/usn-3305-1/


Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability. However, proof of concept for this vulnerability is available.

2) Null pointer dereference

EUVDB-ID: #VU6773

Risk: Low

CVSSv4.0: 7.1 [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:Clear]

CVE-ID: CVE-2017-0351

CWE-ID: CWE-476 - NULL Pointer Dereference

Exploit availability: No

Description

The vulnerability allows a local attacker to cause DoS condition or gain elevated privileges on the target system.

The weakness exists in the kernel mode layer handler due to improper validation of user supplied data. A local attacker can provide a specially crafted input, trigger NULL pointer dereference and cause denial of service or potentially escalate privileges.

Successful exploitation of the vulnerability may result in full access to the system.

Mitigation

Ubuntu 17.04:
nvidia-367 375.66-0ubuntu0.17.04.1
nvidia-375 375.66-0ubuntu0.17.04.1
Ubuntu 16.10:
nvidia-367 375.66-0ubuntu0.16.10.1
nvidia-375 375.66-0ubuntu0.16.10.1
Ubuntu 16.04 LTS:
nvidia-367 375.66-0ubuntu0.16.04.1
nvidia-375 375.66-0ubuntu0.16.04.1
Ubuntu 14.04 LTS:
nvidia-367 375.66-0ubuntu0.14.04.1
nvidia-375 375.66-0ubuntu0.14.04.1

Vulnerable software versions

Ubuntu: 14.04 - 17.04

CPE2.3 External links

https://www.ubuntu.com/usn/usn-3305-1/


Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability. However, proof of concept for this vulnerability is available.

3) Privilege escalation

EUVDB-ID: #VU6774

Risk: Low

CVSSv4.0: 5.9 [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:U/U:Clear]

CVE-ID: CVE-2017-0352

CWE-ID: CWE-284 - Improper Access Control

Exploit availability: No

Description

The vulnerability allows a local attacker to gain elevated privileges on the target system.

The weakness exists in the GPU firmware due improper access control. A local attacker can run CPU software, gain access to sensitive GPU control registers and gain root privileges.

Successful exploitation of the vulnerability may result in full access to the system.

Mitigation

Ubuntu 17.04:
nvidia-367 375.66-0ubuntu0.17.04.1
nvidia-375 375.66-0ubuntu0.17.04.1
Ubuntu 16.10:
nvidia-367 375.66-0ubuntu0.16.10.1
nvidia-375 375.66-0ubuntu0.16.10.1
Ubuntu 16.04 LTS:
nvidia-367 375.66-0ubuntu0.16.04.1
nvidia-375 375.66-0ubuntu0.16.04.1
Ubuntu 14.04 LTS:
nvidia-367 375.66-0ubuntu0.14.04.1
nvidia-375 375.66-0ubuntu0.14.04.1

Vulnerable software versions

Ubuntu: 14.04 - 17.04

CPE2.3 External links

https://www.ubuntu.com/usn/usn-3305-1/


Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.



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