# CVE-2018-6307: libvncclient1: LibVNC before commit ca2a5ac02fbbadd0a21fabba779c1ea69173d10b contains heap use-after-free vulnerability in server co...

CVE-2018-6307 is fixed in 3 products on 1 platform, first by libvncclient1 0.9.11+dfsg-1ubuntu1.1, released January 29, 2019. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2018-6307
- Priority: Routine
- CVSS: n/a (Medium)
- EPSS: 0.2654
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Dec 18, 2018

## Description

LibVNC before commit ca2a5ac02fbbadd0a21fabba779c1ea69173d10b contains heap use-after-free vulnerability in server code of file transfer extension that can result remote code execution.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | libvncclient1 Ubuntu 18.04.6 LTS (bionic) | 0.9.11+dfsg-1ubuntu1.1 | [libvncclient1 0.9.11+dfsg-1ubuntu1.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libvncclient1-0.9.11-dfsg-1ubuntu1.1.md) | Jan 29, 2019 |
| Linux | libvncserver-config Ubuntu 18.04.6 LTS (bionic) | 0.9.11+dfsg-1ubuntu1.1 | [libvncserver-config 0.9.11+dfsg-1ubuntu1.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libvncserver-config-0.9.11-dfsg-1ubuntu1.1.md) | Jan 29, 2019 |
| Linux | libvncserver1 Ubuntu 18.04.6 LTS (bionic) | 0.9.11+dfsg-1ubuntu1.1 | [libvncserver1 0.9.11+dfsg-1ubuntu1.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libvncserver1-0.9.11-dfsg-1ubuntu1.1.md) | Jan 29, 2019 |

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