CVE-2017-8294

Description

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.

Category

7.5
CVSS
Severity: High
CVSS 3.0 •
CVSS 2.0 •
EPSS 0.51%
Third-Party Advisory securityfocus.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://www.securityfocus.com/bid/98072 vdb entry third party advisory
https://github.com/VirusTotal/yara/issues/646 issue tracking patch
https://github.com/VirusTotal/yara/commit/83d799804648c2a0895d40a19835d9b757c6fa4e patch

Frequently Asked Questions

What is the severity of CVE-2017-8294?
CVE-2017-8294 has been scored as a high severity vulnerability.
How to fix CVE-2017-8294?
To fix CVE-2017-8294, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2017-8294 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2017-8294 is being actively exploited. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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