SB2017011220 - Multiple vulnerabilities in Samsung Mobile

Description

This security bulletin contains information about 2 vulnerabilities.

1) Out-of-bounds read (CVE-ID: CVE-2017-5538)

CWE-ID: CWE-125 - Out-of-bounds read

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber

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

The kbase_dispatch function in arm/t7xx/r5p0/mali_kbase_core_linux.c in the GPU driver on Samsung devices with M(6.0) and N(7.0) software and Exynos AP chipsets allows attackers to have unspecified impact via unknown vectors, which trigger an out-of-bounds read, aka SVE-2016-6362.

2) Input validation error (CVE-ID: CVE-2017-5350)

CWE-ID: CWE-20 - Improper input validation

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green

The vulnerability allows a remote non-authenticated attacker to perform a denial of service (DoS) attack.

Samsung Note devices with L(5.0/5.1), M(6.0), and N(7.0) software allow attackers to crash systemUI by leveraging incomplete exception handling. The Samsung ID is SVE-2016-7122.

Remediation

Install update from vendor's website.

References

• http://security.samsungmobile.com/smrupdate.html#SMR-JAN-2017
• http://www.openwall.com/lists/oss-security/2017/01/19/3
• http://www.openwall.com/lists/oss-security/2017/01/20/2
• http://www.securityfocus.com/bid/95674
• http://www.securityfocus.com/bid/95424