CVE Vulnerabilities

CVE-2018-20786

NULL Pointer Dereference

Published: Feb 24, 2019 | Modified: Mar 30, 2020
CVSS 3.x
7.5
HIGH
Source:
NVD
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS 2.x
5 MEDIUM
AV:N/AC:L/Au:N/C:N/I:N/A:P
RedHat/V2
RedHat/V3
5.3 LOW
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Ubuntu
LOW

libvterm through 0+bzr726, as used in Vim and other products, mishandles certain out-of-memory conditions, leading to a denial of service (application crash), related to screen.c, state.c, and vterm.c.

Weakness

A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit.

Affected Software

Name Vendor Start Version End Version
Libvterm Leonerd * 0+bzr726 (including)
Libvterm Ubuntu bionic *
Libvterm Ubuntu cosmic *
Libvterm Ubuntu devel *
Libvterm Ubuntu disco *
Libvterm Ubuntu eoan *
Libvterm Ubuntu esm-apps/bionic *
Libvterm Ubuntu esm-apps/focal *
Libvterm Ubuntu esm-apps/jammy *
Libvterm Ubuntu esm-apps/noble *
Libvterm Ubuntu focal *
Libvterm Ubuntu groovy *
Libvterm Ubuntu hirsute *
Libvterm Ubuntu impish *
Libvterm Ubuntu jammy *
Libvterm Ubuntu kinetic *
Libvterm Ubuntu lunar *
Libvterm Ubuntu mantic *
Libvterm Ubuntu noble *
Libvterm Ubuntu oracular *
Vim Ubuntu bionic *
Vim Ubuntu cosmic *
Vim Ubuntu disco *
Vim Ubuntu upstream *

Potential Mitigations

References