SB2018082713 - Fedora EPEL 7 update for yara

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Main Vulnerability Database SB2018082713

SB2018082713 - Fedora EPEL 7 update for yara

Published: August 27, 2018 Updated: April 24, 2025

Security Bulletin ID SB2018082713
CSH Severity
Low
Patch available
YES
Number of vulnerabilities 2
Exploitation vector Remote access
Highest impact Code execution

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 2 vulnerabilities.


1) Information disclosure (CVE-ID: CVE-2018-12034)

CWE-ID: CWE-200 - Exposure of sensitive information to an unauthorized actor

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P/U:Clear


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)

CWE-ID: CWE-787 - Out-of-bounds write

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/U:Clear


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.

References