SB2018080808 - Multiple vulnerabilities in YARA
Published: August 8, 2018
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 2 secuirty vulnerabilities.
1) Information disclosure (CVE-ID: CVE-2018-12034)
The vulnerability allows a remote attacker to obtain potentially sensitive information.
The vulnerability exists in the yr_execute_code function, as defined in the source code file libyara/exec.c due to out-of-bounds read. A remote attacker can trick the victim into accessing a YARA rule that submits malicious input, trigger memory corruption and gain access to potentially sensitive information.
2) Out-of-bounds write (CVE-ID: CVE-2018-12035)
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists in the yr_execute_code function, as defined in the source code file libyara/exec.c due to out-of-bounds write. A remote attacker can trick the victim into accessing a YARA rule that submits malicious input, trigger memory corruption and execute arbitrary code with elevated privileges.
Successful exploitation of the vulnerability may result in system compromise.
Remediation
Install update from vendor's website.