CVE-2018-6307
UnknownEPSS 26.54%
Last modified
CVE-2018-6307 is a vulnerability of currently unknown severity. LibVNC before commit ca2a5ac02fbbadd0a21fabba779c1ea69173d10b contains heap use-after-free vulnerability in server code of file transfer extension that can result remote code execution.. EPSS estimates a 26.54% chance of exploitation in the next 30 days.
Description
LibVNC before commit ca2a5ac02fbbadd0a21fabba779c1ea69173d10b contains heap use-after-free vulnerability in server code of file transfer extension that can result remote code execution.
Metrics
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Libvnc Project | Libvncserver | < 0.9.12 |
| Canonical | Ubuntu Linux | 14.04 |
| Canonical | Ubuntu Linux | 16.04 |
| Canonical | Ubuntu Linux | 18.04 |
| Canonical | Ubuntu Linux | 18.10 |
| Debian | Debian Linux | 8.0 |
| Debian | Debian Linux | 9.0 |
References
- https://lists.debian.org/debian-lts-announce/2018/12/msg00017.htmlMailing List, Third Party Advisory
- https://usn.ubuntu.com/3877-1/Third Party Advisory
- https://www.debian.org/security/2019/dsa-4383Third Party Advisory
- https://github.com/LibVNC/libvncserver/issues/241Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2018/12/msg00017.htmlMailing List, Third Party Advisory
- https://usn.ubuntu.com/3877-1/Third Party Advisory
- https://www.debian.org/security/2019/dsa-4383Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2018-6307?
LibVNC before commit ca2a5ac02fbbadd0a21fabba779c1ea69173d10b contains heap use-after-free vulnerability in server code of file transfer extension that can result remote code execution.
How severe is CVE-2018-6307?
Severity scoring for CVE-2018-6307 is pending analysis. The EPSS model estimates a 26.54% probability of exploitation in the next 30 days.
How do I fix CVE-2018-6307?
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.
- 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.
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Are you affected by CVE-2018-6307?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST