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CVE-2017-18681: Samsung Galaxy S5 Firmware: Buffer overflow
CVE-2017-18681 is rated critical with a CVSS v3.1 base score of 9.8 and NVD lists Samsung Galaxy S5 Firmware as the affected product. Per its scoring, it can be exploited over the network, without authentication, without any user interaction. The scored impact on confidentiality, integrity and availability is the highest available.
Vulnerability description
An issue was discovered on Samsung Galaxy S5 mobile devices with software through 2016-12-20 (Qualcomm AP chipsets). There are multiple buffer overflows in the bootloader. The Samsung ID is SVE-2016-7930 (March 2017).
Severity breakdown
CVSS v3.1 9.8: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Attack vector: Network. Exploitable remotely over the network, with no need for local or physical access.
- Attack complexity: Low. No special conditions; the attack can be repeated reliably.
- Privileges required: None. No account or prior access is needed.
- User interaction: None. No action from any user is needed.
- Scope: Unchanged. Impact stays within the vulnerable component.
- Confidentiality impact: High. Total loss of confidentiality; sensitive data can be fully disclosed.
- Integrity impact: High. Total loss of integrity; data or system state can be fully modified.
- Availability impact: High. Total loss of availability; the component can be shut down.
Underlying weakness
CWE-120: Buffer Copy without Checking Size of Input
The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer.
Affected products
- Samsung Galaxy S5 Firmware: up to and including 2016-12-20