CVE-2018-6307

high

Description

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

References

https://github.com/LibVNC/libvncserver/issues/241

https://ics-cert.kaspersky.com/advisories/klcert-advisories/2018/12/19/klcert-18-026-libvnc-heap-use-after-free/

https://lists.debian.org/debian-lts-announce/2018/12/msg00017.html

https://lists.debian.org/debian-lts-announce/2019/10/msg00042.html

https://usn.ubuntu.com/3877-1/

https://www.debian.org/security/2019/dsa-4383

Details

Source: MITRE

Published: 2018-12-19

Updated: 2019-10-31

Type: CWE-416

Risk Information

CVSS v2

Base Score: 6.8

Vector: AV:N/AC:M/Au:N/C:P/I:P/A:P

Impact Score: 6.4

Exploitability Score: 8.6

Severity: MEDIUM

CVSS v3

Base Score: 8.1

Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Impact Score: 5.9

Exploitability Score: 2.2

Severity: HIGH