Test ID:	1.3.6.1.4.1.25623.1.0.844621
Category:	Ubuntu Local Security Checks
Title:	Ubuntu: Security Advisory (USN-4547-2)
Summary:	The remote host is missing an update for the 'ssvnc' package(s) announced via the USN-4547-2 advisory.
Description:	Summary: The remote host is missing an update for the 'ssvnc' package(s) announced via the USN-4547-2 advisory. Vulnerability Insight: It was discovered that the LibVNCClient vendored in SSVNC incorrectly handled certain packet lengths. A remote attacker could possibly use this issue to obtain sensitive information, cause a denial of service, or execute arbitrary code. (CVE-2018-20020, CVE-2018-20021, CVE-2018-20022, CVE-2018-2024) Affected Software/OS: 'ssvnc' package(s) on Ubuntu 16.04. Solution: Please install the updated package(s). CVSS Score: 7.8 CVSS Vector: AV:N/AC:L/Au:N/C:N/I:N/A:C
Cross-Ref:	Common Vulnerability Exposure (CVE) ID: CVE-2018-20020 Debian Security Information: DSA-4383 (Google Search) https://www.debian.org/security/2019/dsa-4383 https://security.gentoo.org/glsa/201908-05 https://security.gentoo.org/glsa/202006-06 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://usn.ubuntu.com/3877-1/ https://usn.ubuntu.com/4547-1/ https://usn.ubuntu.com/4547-2/ https://usn.ubuntu.com/4587-1/ Common Vulnerability Exposure (CVE) ID: CVE-2018-20021 https://ics-cert.kaspersky.com/advisories/klcert-advisories/2018/12/19/klcert-18-031-libvnc-infinite-loop/ https://lists.debian.org/debian-lts-announce/2019/12/msg00028.html Common Vulnerability Exposure (CVE) ID: CVE-2018-20022 https://ics-cert.kaspersky.com/advisories/klcert-advisories/2018/12/19/klcert-18-032-libvnc-multiple-memory-leaks/ Common Vulnerability Exposure (CVE) ID: CVE-2018-20024 https://ics-cert.kaspersky.com/advisories/klcert-advisories/2018/12/19/klcert-18-034-libvnc-null-pointer-dereference/
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