SB2018022105 - Multiple vulnerabilities in NVIDIA SHIELD TV
Published: February 21, 2018
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 8 vulnerabilities.
1) Out-of-bounds write (CVE-ID: CVE-2017-6282)
CWE-ID: CWE-787 - Out-of-bounds write
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:Clear
The vulnerability allows a local attacker to gain elevated privileges on the target system.
The weakness exists due to a flaw in NVMAP in NVIDIA Tegra kernel driver. A local attacker can trigger out-of-bounds write and execute arbitrary code with elevated privileges.
2) Privilege escalation (CVE-ID: CVE-2017-6279)
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:Clear
The vulnerability allows a local attacker to gain elevated privileges on the target system.
The weakness exists due to a flaw in OMX.Nvidia.aac.decoder in NVIDIA Tegra OpenMax Component. A local attacker can disable the dead code to avoid malicious software, instantiate the vulnerable component and cause service to crash or gain elevated privileges.
3) Out-of-bounds read (CVE-ID: CVE-2017-6295)
CWE-ID: CWE-125 - Out-of-bounds read
CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
The vulnerability allows a local attacker to obtain potentially sensitive information or cause DoS condition on the target system.
The weakness exists due to a flaw in the Keymaster implementation in NVIDIA TrustZone Software. A local attacker can trigger out-of-bounds read and gain read access to important data or cause the service to crash.
4) Use-after-free error (CVE-ID: CVE-2017-13175)
CWE-ID: CWE-416 - Use After Free
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:Clear
The vulnerability allows a local attacker to gain elevated privileges on the target system.
The weakness exists due to a flaw in OMX.Nvidia.audio.render in NVIDIA Tegra OpenMax Component. A local attacker can use mediaserver, trigger use-after-free error, cause the service to crash or possibly gain elevated privileges.
5) Use-after-free error (CVE-ID: CVE-2017-6276)
CWE-ID: CWE-416 - Use After Free
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:Clear
The vulnerability allows a local attacker to gain elevated privileges on the target system.
The weakness exists due to a flaw in LIBNVMMLITE_VIDEO.SO in NVIDIA OpenMax Component. A local attacker can use mediaserver, trigger use-after-free error, cause the service to crash or possibly gain elevated privileges.
6) Information disclosure (CVE-ID: CVE-2017-6283)
CWE-ID: CWE-200 - Exposure of sensitive information to an unauthorized actor
CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
The vulnerability allows a local attacker to gain elevated privileges on the target system.
The weakness exists due to a flaw in the RSA function in NVIDIA Security Engine. A local attacker can clear the keyslot read/write lock permissions on a chip reset and gain read access to important data.
7) Information disclosure (CVE-ID: CVE-2017-6284)
CWE-ID: CWE-200 - Exposure of sensitive information to an unauthorized actor
CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
The vulnerability allows a local attacker to gain elevated privileges on the target system.
The weakness exists due to a flaw in the Deterministic Random Bit Generator (DRBG) in NVIDIA Security Engine due to improper initialization and storing or transmitting sensitive data using a weakened encryption scheme. A local attacker can gain read access to important data.
8) Privilege escalation (CVE-ID: CVE-2017-6296)
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:U/U:Clear
The vulnerability allows a local attacker to gain elevated privileges on the target system.
The weakness exists due to a TOCTOU issue in the DRM application in NVIDIA TrustZone Software. A local attacker can cause service to crash or gain elevated privileges.
Remediation
Install update from vendor's website.