Test Kennung:	1.3.6.1.4.1.25623.1.1.10.2019.0037
Kategorie:	Mageia Linux Local Security Checks
Titel:	Mageia: Security Advisory (MGASA-2019-0037)
Zusammenfassung:	The remote host is missing an update for the 'libvncserver, x11vnc' package(s) announced via the MGASA-2019-0037 advisory.
Beschreibung:	Summary: The remote host is missing an update for the 'libvncserver, x11vnc' package(s) announced via the MGASA-2019-0037 advisory. Vulnerability Insight: A heap use-after-free vulnerability in the server code of the file transfer extension, which can result in remote code execution. This attack appears to be exploitable via network connectivity (CVE-2018-6307). A heap use-after-free vulnerability in the server code of the file transfer extension, which can result in remote code execution. This attack appears to be exploitable via network connectivity (CVE-2018-15126). A heap out-of-bound write vulnerability in the server code of the file transfer extension, which can result in remote code execution. This attack appears to be exploitable via network connectivity (CVE-2018-15127). Multiple heap out-of-bound write vulnerabilities in VNC client code, which can result in remote code execution (CVE-2018-20019). Heap out-of-bound write vulnerability in a structure in VNC client code, which can result in remote code execution (CVE-2018-20020). Infinite Loop vulnerability in VNC client code. The vulnerability could allow an attacker to consume an excessive amount of resources, such as CPU and RAM (CVE-2018-20021). Improper Initialization weaknesses in VNC client code, which could allow an attacker to read stack memory and can be abused for information disclosure. Combined with another vulnerability, it can be used to leak stack memory layout and bypass ASLR (CVE-2018-20022). Improper Initialization vulnerability in VNC Repeater client code, which could allow an attacker to read stack memory and can be abused for information disclosure. Combined with another vulnerability, it can be used to leak stack memory layout and bypass ASLR (CVE-2018-20023). A null pointer dereference in VNC client code, which can result in DoS (CVE-2018-20024). Affected Software/OS: 'libvncserver, x11vnc' package(s) on Mageia 6. 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
Querverweis:	Common Vulnerability Exposure (CVE) ID: CVE-2018-15126 Debian Security Information: DSA-4383 (Google Search) https://www.debian.org/security/2019/dsa-4383 https://ics-cert.kaspersky.com/advisories/klcert-advisories/2018/12/19/klcert-18-027-libvnc-heap-use-after-free/ https://lists.debian.org/debian-lts-announce/2019/01/msg00029.html https://lists.debian.org/debian-lts-announce/2019/10/msg00042.html https://usn.ubuntu.com/3877-1/ Common Vulnerability Exposure (CVE) ID: CVE-2018-15127 https://ics-cert.kaspersky.com/advisories/klcert-advisories/2018/12/19/klcert-18-028-libvnc-heap-out-of-bound-write/ https://lists.debian.org/debian-lts-announce/2018/12/msg00017.html RedHat Security Advisories: RHSA-2019:0059 https://access.redhat.com/errata/RHSA-2019:0059 https://usn.ubuntu.com/4547-1/ https://usn.ubuntu.com/4587-1/ Common Vulnerability Exposure (CVE) ID: CVE-2018-20019 https://security.gentoo.org/glsa/201908-05 https://ics-cert.kaspersky.com/advisories/klcert-advisories/2018/12/19/klcert-18-029-libvnc-multiple-heap-out-of-bound-vulnerabilities/ Common Vulnerability Exposure (CVE) ID: CVE-2018-20020 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/2019/11/msg00033.html https://usn.ubuntu.com/4547-2/ 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-2018-20023 https://ics-cert.kaspersky.com/advisories/klcert-advisories/2018/12/19/klcert-18-033-libvnc-memory-leak/ 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/ Common Vulnerability Exposure (CVE) ID: CVE-2018-6307 https://ics-cert.kaspersky.com/advisories/klcert-advisories/2018/12/19/klcert-18-026-libvnc-heap-use-after-free/
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