CVE-2018-6345
Last modified
CVE-2018-6345 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. The function number_format is vulnerable to a heap overflow issue when its second argument ($dec_points) is excessively large. The internal implementation of the function will cause a string to be created with an invalid length, which can then interact poorly with other functions. EPSS estimates a 1.75% chance of exploitation in the next 30 days.
Description
The function number_format is vulnerable to a heap overflow issue when its second argument ($dec_points) is excessively large. The internal implementation of the function will cause a string to be created with an invalid length, which can then interact poorly with other functions. This affects all supported versions of HHVM (3.30.1 and 3.27.5 and below).
Metrics
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Hhvm | <= 3.27.5 | |
| Hhvm | >= 3.28.0, <= 3.30.1 |
References
- https://github.com/facebook/hhvm/commit/190ffdf6c8b1ec443be202c7d69e63a7e3da25e3Patch, Third Party Advisory
- https://hhvm.com/blog/2019/01/14/hhvm-3.30.2.htmlRelease Notes, Vendor Advisory
- https://github.com/facebook/hhvm/commit/190ffdf6c8b1ec443be202c7d69e63a7e3da25e3Patch, Third Party Advisory
- https://hhvm.com/blog/2019/01/14/hhvm-3.30.2.htmlRelease Notes, Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2018-6345?
How severe is CVE-2018-6345?
How do I fix CVE-2018-6345?
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.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2018
- CVE-2018-6339When receiving calls using WhatsApp on Android, a stack allo…
- CVE-2018-6340The Memcache::getextendedstats function can be used to trigg…8.1
- CVE-2018-6341React applications which rendered to HTML using the ReactDOM…6.1
- CVE-2018-6342react-dev-utils on Windows allows developers to run a local …9.8
- CVE-2018-6343Proxygen fails to validate that a secondary auth manager is …7.5
- CVE-2018-6344A heap corruption in WhatsApp can be caused by a malformed R…7.5
- CVE-2018-6346A potential denial-of-service issue in the Proxygen handling…7.5
- CVE-2018-6347An issue in the Proxygen handling of HTTP2 parsing of header…7.5
- CVE-2018-6349When receiving calls using WhatsApp for Android, a missing s…9.8
- CVE-2018-6350An out-of-bounds read was possible in WhatsApp due to incorr…
- CVE-2018-6352In PoDoFo 0.9.5, there is an Excessive Iteration in the PdfP…
- CVE-2018-6353The Python console in Electrum through 2.9.4 and 3.x through…
Are you affected by CVE-2018-6345?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST