VulnerabilityModified
CVE-2018-20020
LibVNC before commit 7b1ef0ffc4815cab9a96c7278394152bdc89dc4d contains heap out-of-bound write vulnerability inside structure in VNC client code that can result remote code execution
CRITICAL 9.8EPSS 8.62%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (8.62%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
LibVNC before commit 7b1ef0ffc4815cab9a96c7278394152bdc89dc4d contains heap out-of-bound write vulnerability inside structure in VNC client code that can result remote code execution
- CVSS 3.0
- 9.8 CRITICALCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 8.62% probability · 95th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-787
- Affected
- libvnc project/libvncserver · canonical/ubuntu linux · debian/debian linux
- Source
- vulnerability@kaspersky.com
References
- https://ics-cert.kaspersky.com/advisories/klcert-advisories/2018/12/19/klcert-18-030-libvnc-heap-out-of-bound-write/Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2018/12/msg00017.htmlMailing List, Third Party Advisory
- 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/Third Party Advisory
- 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-4383Third Party Advisory
- https://ics-cert.kaspersky.com/advisories/klcert-advisories/2018/12/19/klcert-18-030-libvnc-heap-out-of-bound-write/Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2018/12/msg00017.htmlMailing List, Third Party Advisory
- 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/Third Party Advisory
- 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-4383Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.