Information disclosure in YARA - CVE-2018-12034
Published: August 7, 2018 / Updated: August 8, 2018
Vulnerability identifier: #VU14222
CSH Severity: Low
CVSS v4: 5.1 [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]
CVE-ID: CVE-2018-12034
CWE-ID: CWE-200
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
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.
Affected software
YARA
Fedora
Ubuntu
yara (Ubuntu package)
yara
Fedora
Ubuntu
yara (Ubuntu package)
yara
How to mitigate CVE-2018-12034
Update to version 3.8.0.
YARA - update to 3.8.0
yara (Ubuntu package) - addressed in versions 3.4.0+dfsg-2ubuntu0.1~esm1, 3.7.1-1ubuntu2+esm1, 3.9.0-1ubuntu0.1~esm1
yara - addressed in versions 3.8.1-1.el7, 3.8.1-1.fc27, 3.8.1-1.fc28
yara (Ubuntu package) - addressed in versions 3.4.0+dfsg-2ubuntu0.1~esm1, 3.7.1-1ubuntu2+esm1, 3.9.0-1ubuntu0.1~esm1
yara - addressed in versions 3.8.1-1.el7, 3.8.1-1.fc27, 3.8.1-1.fc28