Out-of-bounds Write Affecting libvncserver0 package, versions <0.9.10-4.3.1
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
Do your applications use this vulnerable package?
In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.
Test your applications- Snyk IDSNYK-SLES150-LIBVNCSERVER0-2756978
- published14 Apr 2022
- disclosed11 Jan 2019
Introduced: 11 Jan 2019
CVE-2018-20020 (opens in a new tab)How to fix?
Upgrade SLES:15.0 libvncserver0 to version 0.9.10-4.3.1 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream libvncserver0 package and not the libvncserver0 package as distributed by SLES.
See How to fix? for SLES:15.0 relevant fixed versions and status.
LibVNC before commit 7b1ef0ffc4815cab9a96c7278394152bdc89dc4d contains heap out-of-bound write vulnerability inside structure in VNC client code that can result remote code execution
References
- https://www.suse.com/security/cve/CVE-2018-20020.html
- https://bugzilla.suse.com/1120116
- https://bugzilla.suse.com/1155472
- https://ics-cert.kaspersky.com/advisories/klcert-advisories/2018/12/19/klcert-18-030-libvnc-heap-out-of-bound-write/
- https://lists.debian.org/debian-lts-announce/2018/12/msg00017.html
- https://lists.debian.org/debian-lts-announce/2019/10/msg00042.html
- https://lists.debian.org/debian-lts-announce/2019/11/msg00033.html
- https://security.gentoo.org/glsa/201908-05
- https://security.gentoo.org/glsa/202006-06
- https://usn.ubuntu.com/3877-1/
- https://usn.ubuntu.com/4547-1/
- https://usn.ubuntu.com/4547-2/
- https://usn.ubuntu.com/4587-1/
- https://www.debian.org/security/2019/dsa-4383