Multiple vulnerabilities in Samsung Mobile

1) Input validation error

EUVDB-ID: #VU39664

Risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2016-4547

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

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

Samsung devices with Android KK(4.4), L(5.0/5.1), or M(6.0) allow attackers to cause a denial of service (system crash) via a crafted system call to TvoutService_C.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Samsung Mobile: 4.4 - 6.0

External links

http://security.samsungmobile.com/smrupdate.html#SMR-FEB-2016
http://www.openwall.com/lists/oss-security/2016/05/06/2

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

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

2) Permissions, Privileges, and Access Controls

EUVDB-ID: #VU39819

Risk: High

CVSSv3.1: 7.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2016-6526

CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls

Exploit availability: No

Description

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

The SpamCall Activity component in Telecom application on Samsung Note device L(5.0/5.1) and M(6.0) allows attackers to cause a denial of service (crash and reboot) or possibly gain privileges via a malformed serializable object.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Samsung Mobile: 5.0 - 6.0

External links

http://security.samsungmobile.com/smrupdate.html#SMR-AUG-2016
http://www.openwall.com/lists/oss-security/2016/08/05/1
http://www.securityfocus.com/bid/92330

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

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

3) Permissions, Privileges, and Access Controls

EUVDB-ID: #VU39820

Risk: High

CVSSv3.1: 7.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2016-6527

CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls

Exploit availability: No

Description

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

The SmartCall Activity component in Telecom application on Samsung Note device L(5.0/5.1) and M(6.0) allows attackers to cause a denial of service (crash and reboot) or possibly gain privileges via a malformed serializable object.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Samsung Mobile: 5.0 - 6.0

External links

http://security.samsungmobile.com/smrupdate.html#SMR-AUG-2016
http://www.openwall.com/lists/oss-security/2016/08/05/1
http://www.securityfocus.com/bid/92330

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

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

4) Resource exhaustion

EUVDB-ID: #VU39947

Risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2017-5351

CWE-ID: CWE-400 - Resource exhaustion

Exploit availability: No

Description

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

Samsung Note devices with KK(4.4), L(5.0/5.1), and M(6.0) software allow attackers to crash the system by creating an arbitrarily large number of active VR service threads. The Samsung ID is SVE-2016-7650.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Samsung Mobile: 4.4 - 6.0

External links

http://security.samsungmobile.com/smrupdate.html#SMR-JAN-2017
http://www.securityfocus.com/bid/95418

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

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

5) Buffer overflow

EUVDB-ID: #VU39949

Risk: Medium

CVSSv3.1: 5.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2017-5217

CWE-ID: CWE-119 - Memory corruption

Exploit availability: No

Description

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

Installing a zero-permission Android application on certain Samsung Android devices with KK(4.4), L(5.0/5.1), and M(6.0) software can continually crash the system_server process in the Android OS. The zero-permission app will create an active install session for a separate app that it has embedded within it. The active install session of the embedded app is performed using the android.content.pm.PackageInstaller class and its nested classes in the Android API. The active install session will write the embedded APK file to the /data/app directory, but the app will not be installed since third-party applications cannot programmatically install apps. Samsung has modified AOSP in order to accelerate the parsing of APKs by introducing the com.android.server.pm.PackagePrefetcher class and its nested classes. These classes will parse the APKs present in the /data/app directory and other directories, even if the app is not actually installed. The embedded APK that was written to the /data/app directory via the active install session has a very large but valid AndroidManifest.xml file. Specifically, the AndroidManifest.xml file contains a very large string value for the name of a permission-tree that it declares. When system_server tries to parse the APK file of the embedded app from the active install session, it will crash due to an uncaught error (i.e., java.lang.OutOfMemoryError) or an uncaught exception (i.e., std::bad_alloc) because of memory constraints. The Samsung Android device will encounter a soft reboot due to a system_server crash, and this action will keep repeating since parsing the APKs in the /data/app directory as performed by the system_server process is part of the normal boot process. The Samsung ID is SVE-2016-6917.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Samsung Mobile: 4.4 - 6.0

External links

http://security.samsungmobile.com/smrupdate.html#SMR-JAN-2017
http://www.securityfocus.com/bid/95319

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

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

6) Information disclosure

EUVDB-ID: #VU40035

Risk: Medium

CVSSv3.1: 5.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2016-9567

CWE-ID: CWE-200 - Information exposure

Exploit availability: No

Description

The vulnerability allows a remote non-authenticated attacker to gain access to sensitive information.

The mDNIe system service on Samsung Mobile S7 devices with M(6.0) software does not properly restrict setmDNIeScreenCurtain API calls, enabling attackers to control a device's screen. This can be exploited via a crafted application to eavesdrop after phone shutdown or record a conversation. The Samsung ID is SVE-2016-6343.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Samsung Mobile: 6.0

External links

http://security.samsungmobile.com/smrupdate.html#SMR-NOV-2016
http://www.securityfocus.com/bid/94494

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

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

7) NULL pointer dereference

EUVDB-ID: #VU40053

Risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2016-7160

CWE-ID: CWE-476 - NULL Pointer Dereference

Exploit availability: No

Description

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

A vulnerability on Samsung Mobile M(6.0) devices exists because external access to SystemUI activities is not properly restricted, leading to a SystemUI crash and device restart, aka SVE-2016-6248.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Samsung Mobile: 6.0

External links

http://security.samsungmobile.com/smrupdate.html#SMR-SEP-2016
http://www.securityfocus.com/bid/94120

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

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