Linux Kernel Pointer Leak in Logs Enables ASLR Bypass
CVE-2023-21492 Published on May 4, 2023
Kernel pointers are printed in the log file prior to SMR May-2023 Release 1 allows a privileged local attacker to bypass ASLR.
Known Exploited Vulnerability
This Samsung Mobile Devices Insertion of Sensitive Information Into Log File Vulnerability is part of CISA's list of Known Exploited Vulnerabilities. Samsung mobile devices running Android 11, 12, and 13 contain an insertion of sensitive information into log file vulnerability that allows a privileged, local attacker to conduct an address space layout randomization (ASLR) bypass.
The following remediation steps are recommended / required by June 9, 2023: Apply updates per vendor instructions.
Vulnerability Analysis
CVE-2023-21492 is exploitable with local system access, and requires user privileges. This vulnerability is considered to have a low attack complexity. This vulnerability is known to be actively exploited by threat actors. The potential impact of an exploit of this vulnerability is considered to have a high impact on confidentiality, with no impact on integrity and availability.
Weakness Type
Insertion of Sensitive Information into Log File
Information written to log files can be of a sensitive nature and give valuable guidance to an attacker or expose sensitive user information.
Products Associated with CVE-2023-21492
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Affected Versions
Samsung Mobile Devices:- Version Selected Android 11, 12, 13 devices and below SMR May-2023 Release 1 is affected.
Exploit Probability
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.