CVE-2018-19976
UnknownEPSS 1.28%
Last modified
CVE-2018-19976 is a vulnerability of currently unknown severity. In YARA 3.8.1, bytecode in a specially crafted compiled rule is exposed to information about its environment, in libyara/exec.c. This is a consequence of the design of the YARA virtual machine.. EPSS estimates a 1.28% chance of exploitation in the next 30 days.
Description
In YARA 3.8.1, bytecode in a specially crafted compiled rule is exposed to information about its environment, in libyara/exec.c. This is a consequence of the design of the YARA virtual machine.
Metrics
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Virustotal | Yara | 3.8.1 |
References
- https://bnbdr.github.io/posts/extracheese/Exploit, Third Party Advisory
- https://github.com/VirusTotal/yara/issues/999Exploit, Issue Tracking, Third Party Advisory
- https://github.com/bnbdr/swisscheese/Exploit, Third Party Advisory
- https://bnbdr.github.io/posts/extracheese/Exploit, Third Party Advisory
- https://github.com/VirusTotal/yara/issues/999Exploit, Issue Tracking, Third Party Advisory
- https://github.com/bnbdr/swisscheese/Exploit, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2018-19976?
In YARA 3.8.1, bytecode in a specially crafted compiled rule is exposed to information about its environment, in libyara/exec.c. This is a consequence of the design of the YARA virtual machine.
How severe is CVE-2018-19976?
Severity scoring for CVE-2018-19976 is pending analysis. The EPSS model estimates a 1.28% probability of exploitation in the next 30 days.
How do I fix CVE-2018-19976?
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.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
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Are you affected by CVE-2018-19976?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST