Vulnerability Description
An issue was discovered in LibVNCServer before 0.9.13. Byte-aligned data is accessed through uint32_t pointers in libvncclient/rfbproto.c. NOTE: there is reportedly "no trust boundary crossed.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Libvncserver Project | Libvncserver | < 0.9.13 |
| Debian | Debian Linux | 8.0 |
| Opensuse | Leap | 15.1 |
| Canonical | Ubuntu Linux | 16.04 |
References
- http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00033.htmlMailing ListThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00055.htmlMailing ListThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00066.htmlMailing ListThird Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1860354Issue TrackingPatchThird Party Advisory
- https://github.com/LibVNC/libvncserver/commit/23e5cbe6b090d7f22982aee909a6a61817Patch
- https://github.com/LibVNC/libvncserver/compare/LibVNCServer-0.9.12...LibVNCServeRelease Notes
- https://lists.debian.org/debian-lts-announce/2020/06/msg00035.htmlMailing ListThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2020/08/msg00045.htmlMailing ListThird Party Advisory
- https://usn.ubuntu.com/4434-1/Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00033.htmlMailing ListThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00055.htmlMailing ListThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00066.htmlMailing ListThird Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1860354Issue TrackingPatchThird Party Advisory
- https://github.com/LibVNC/libvncserver/commit/23e5cbe6b090d7f22982aee909a6a61817Patch
- https://github.com/LibVNC/libvncserver/compare/LibVNCServer-0.9.12...LibVNCServeRelease Notes
FAQ
What is CVE-2020-14399?
CVE-2020-14399 is a vulnerability with a CVSS score of 7.5 (HIGH). An issue was discovered in LibVNCServer before 0.9.13. Byte-aligned data is accessed through uint32_t pointers in libvncclient/rfbproto.c. NOTE: there is reportedly "no trust boundary crossed.
How severe is CVE-2020-14399?
CVE-2020-14399 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2020-14399?
Check the references section above for vendor advisories and patch information. Affected products include: Libvncserver Project Libvncserver, Debian Debian Linux, Opensuse Leap, Canonical Ubuntu Linux.