Zero-day vulnerability in Samsung Mobile Firmware

Inclusion of sensitive information in log files
CVE-2023-21492

Vulnerability details

Advisory: SB2023052602 - Multiple vulnerabilities in Samsung Mobile Firmware

Vulnerable component: Samsung Mobile Firmware

CVE-ID: CVE-2023-21492

CVSSv3 score: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N/E:H/RL:O/RC:C

CWE-ID: CWE-532 - Information Exposure Through Log Files

Description:

The vulnerability allows a local application to gain access to sensitive information.

The vulnerability exists due to kernel pointers are printed into the log file. A local application can read the log file and use the kernel pointers to bypass ASLR protection.

Note, the vulnerability is being exploited in the wild.

External links:

https://security.samsungmobile.com/securityUpdate.smsb?year=2023&month=05

About zero-day vulnerabilities

Zero-day vulnerability is an undisclosed vulnerability in software that hackers can exploit to compromise computer programs, gain unauthorized access to sensitive data, penetrate networks, etc. We consider vulnerability a zero-day when there is no solution provided from software vendor and the vulnerability is being actively exploited by malicious actors.

Zero-day candidate is a potential zero-day vulnerability in software which might have been used in targeted attacks, however there is no evidence to support this suggestion.