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CVE-2017-9438

UnknownEPSS 2.57%

Last modified

CVE-2017-9438 is a vulnerability of currently unknown severity. libyara/re.c in the regexp module in YARA 3.5.0 allows remote attackers to cause a denial of service (stack consumption) via a crafted rule (involving hex strings) that is mishandled in the _yr_re_emit function, a different vulnerability than CVE-2017-9304.. EPSS estimates a 2.57% chance of exploitation in the next 30 days.

Description

libyara/re.c in the regexp module in YARA 3.5.0 allows remote attackers to cause a denial of service (stack consumption) via a crafted rule (involving hex strings) that is mishandled in the _yr_re_emit function, a different vulnerability than CVE-2017-9304.

Metrics

EPSS Probability
2.57%

83.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
VirustotalYara3.5.0

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2017-9438?
libyara/re.c in the regexp module in YARA 3.5.0 allows remote attackers to cause a denial of service (stack consumption) via a crafted rule (involving hex strings) that is mishandled in the _yr_re_emit function, a different vulnerability than CVE-2017-9304.
How severe is CVE-2017-9438?
Severity scoring for CVE-2017-9438 is pending analysis. The EPSS model estimates a 2.57% probability of exploitation in the next 30 days.
How do I fix CVE-2017-9438?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2017-9438?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST