Out-of-bounds Read in Virustotal Yara
CVE-2017-8294
libyara/re.c in the regex component in YARA 3.5.0 allows remote attackers to cause a denial of service (out-of-bounds read and application crash) via a crafted rule that is mishandled in the yr_re_exec function.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.031 (87.4th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 87th percentile — 87.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.030 · newest: 0.031 · change: +0.001
Affected products
- Virustotal Yara — versions 3.5.0
Weakness classification (CWE)
References
- www.securityfocus.com/bid/98072 (VDB Entry, Third Party Advisory, vdb-entry)
- github.com/VirusTotal/yara/issues/646 (Patch, Issue Tracking)
- github.com/VirusTotal/yara/commit/83d799804648c2a0895d40a19835d9b757c6fa4e (Patch)
Frequently asked questions
- What is CVE-2017-8294?
- CVE-2017-8294 is a high-severity vulnerability in Virustotal Yara, classified under Out-of-bounds Read. CVSS score: 7.5/10. Published 2017-04-27.
- How severe is CVE-2017-8294?
- High severity. CVSS v3 base score is 7.5 out of 10.