CVE-2020-14305

HighCVSS 8.1/10Last modified Jun 17, 2026

Description

An out-of-bounds memory write flaw was found in how the Linux kernel’s Voice Over IP H.323 connection tracking functionality handled connections on ipv6 port 1720. This flaw allows an unauthenticated remote user to crash the system, causing a denial of service. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.

Metrics

CVSS 3.1 8.1/10CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

Affected software

No affected versions have been published.

Timeline

Published
Dec 2, 2020
Last modified
Jun 17, 2026
NVD status
Modified

Related CVEs from 2020

CVE-2020-143068.8An incorrect access control flaw was found in the operator, openshift-service-mesh/istio-rhel8-operator all versions through 1.1.3. This flaCVE-2020-143076.5A vulnerability was found in Wildfly's Enterprise Java Beans (EJB) versions shipped with Red Hat JBoss EAP 7, where SessionOpenInvocations aCVE-2020-143086.4In grub2 versions before 2.06 the grub memory allocator doesn't check for possible arithmetic overflows on the requested allocation size. ThCVE-2020-143096.7There's an issue with grub2 in all versions before 2.06 when handling squashfs filesystems containing a symbolic link with name length of UICVE-2020-14317.8An elevation of privilege vulnerability exists when the Windows AppX Deployment Extensions improperly performs privilege management, resultiCVE-2020-143106.0There is an issue on grub2 before version 2.06 at function read_section_as_string(). It expects a font name to be at max UINT32_MAX - 1 lengCVE-2020-143116.0There is an issue with grub2 before version 2.06 while handling symlink on ext filesystems. A filesystem containing a symbolic link with an CVE-2020-143125.9A flaw was found in the default configuration of dnsmasq, as shipped with Fedora versions prior to 31 and in all versions Red Hat EnterpriseCVE-2020-143134.3An information disclosure vulnerability was found in Red Hat Quay in versions before 3.3.1. This flaw allows an attacker who can create a buCVE-2020-143145.5A memory out-of-bounds read flaw was found in the Linux kernel before 5.9-rc2 with the ext3/ext4 file system, in the way it accesses a direcCVE-2020-143159.8A memory corruption vulnerability is present in bspatch as shipped in Colin Percival’s bsdiff tools version 4.3. Insufficient checks when haCVE-2020-143169.9A flaw was found in kubevirt 0.29 and earlier. Virtual Machine Instances (VMIs) can be used to gain access to the host's filesystem. Success
CVE-2020-14305: High severity, CVSS 8.1 | Vulnix