#VU38890 Out-of-bounds read in YARA - CVE-2017-9465
Published: June 7, 2017 / Updated: January 26, 2021
Vulnerability identifier: #VU38890
Vulnerability risk: Medium
CVSSv4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2017-9465
CWE-ID: CWE-125
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerable software:
YARA
YARA
Software vendor:
VirusTotal
VirusTotal
Description
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a boundary error in The yr_arena_write_data function in YARA 3.6.1. A remote attacker can perform a denial of service (buffer over-read and application crash) or obtain sensitive information from process memory via a crafted file that is mishandled in the yr_re_fast_exec function in libyara/re.c and the _yr_scan_match_callback function in libyara/scan.c.
Remediation
Install update from vendor's website.