PT-2019-10227 · Libvterm+3 · Libvterm+3

5Hadowblad3 · Published 2019-02-24 · Updated 2020-03-30 · CVE-2018-20786

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions: libvterm through 0+bzr726

Description: The issue is related to how libvterm handles certain out-of-memory conditions, which can lead to a denial of service, causing the application to crash. This is related to the files screen.c, state.c, and vterm.c.

Recommendations: For libvterm through 0+bzr726, consider applying memory management fixes to prevent out-of-memory conditions from causing application crashes. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

DoS

NULL Pointer Dereference

Weakness Enumeration

CWE-476

Related Identifiers

ALT-PU-2019-2685

CVE-2018-20786

USN-4309-1

Affected Products

Alt Linux

Debian

Ubuntu

Libvterm

References · 17

• 🔥 https://github.com/vim/vim/issues/3711 · Exploit
• https://github.com/vim/vim/commit/cd929f7ba8cc5b6d6dcf35c8b34124e969fed6b8 · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2018-20786 · Security Note
• https://osv.dev/vulnerability/CVE-2018-20786 · Vendor Advisory
• https://osv.dev/vulnerability/USN-4309-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2017-6349 · Vendor Advisory
• https://ubuntu.com/security/CVE-2017-6350 · Vendor Advisory
• https://ubuntu.com/security/notices/USN-4309-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2017-5953 · Vendor Advisory
• https://usn.ubuntu.com/4309-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2018-20786 · Vendor Advisory
• https://ubuntu.com/security/CVE-2017-11109 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2018-20786 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2018-20786 · Security Note
• https://ubuntu.com/security/CVE-2019-20079 · Vendor Advisory