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Ubuntu 16.04 ESM / 18.04 LTS / 20.04 LTS : Vim vulnerabilities (USN-5147-1)

high Nessus Plugin ID 155351

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Synopsis

The remote Ubuntu host is missing one or more security updates.

Description

The remote Ubuntu 16.04 LTS / 18.04 LTS / 20.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-5147-1 advisory.

 - vim is vulnerable to Heap-based Buffer Overflow (CVE-2021-3872, CVE-2021-3903, CVE-2021-3927)

 - fileio.c in Vim prior to 8.0.1263 sets the group ownership of a .swp file to the editor's primary group (which may be different from the group ownership of the original file), which allows local users to obtain sensitive information by leveraging an applicable group membership, as demonstrated by /etc/shadow owned by root:shadow mode 0640, but /etc/.shadow.swp owned by root:users mode 0640, a different vulnerability than CVE-2017-1000382. (CVE-2017-17087)

 - In Vim before 8.1.0881, users can circumvent the rvim restricted mode and execute arbitrary OS commands via scripting interfaces (e.g., Python, Ruby, or Lua). (CVE-2019-20807)

 - vim is vulnerable to Use of Uninitialized Variable (CVE-2021-3928)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Update the affected packages.

See Also

https://ubuntu.com/security/notices/USN-5147-1

Plugin Details

Severity: High

ID: 155351

File Name: ubuntu_USN-5147-1.nasl

Version: 1.9

Type: local

Agent: unix

Published: 11/15/2021

Updated: 10/16/2023

Supported Sensors: Agentless Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5.3

Vector: CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:P

CVSS Score Source: CVE-2021-3927

CVSS v3

Risk Factor: High

Base Score: 7.8

Temporal Score: 7

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C

CVSS Score Source: CVE-2021-3928

Vulnerability Information

CPE: cpe:/o:canonical:ubuntu_linux:16.04:-:esm, cpe:/o:canonical:ubuntu_linux:18.04:-:lts, cpe:/o:canonical:ubuntu_linux:20.04:-:lts, p-cpe:/a:canonical:ubuntu_linux:vim, p-cpe:/a:canonical:ubuntu_linux:vim-athena, p-cpe:/a:canonical:ubuntu_linux:vim-athena-py2, p-cpe:/a:canonical:ubuntu_linux:vim-common, p-cpe:/a:canonical:ubuntu_linux:vim-gnome, p-cpe:/a:canonical:ubuntu_linux:vim-gnome-py2, p-cpe:/a:canonical:ubuntu_linux:vim-gtk, p-cpe:/a:canonical:ubuntu_linux:vim-gtk-py2, p-cpe:/a:canonical:ubuntu_linux:vim-gtk3, p-cpe:/a:canonical:ubuntu_linux:vim-gtk3-py2, p-cpe:/a:canonical:ubuntu_linux:vim-gui-common, p-cpe:/a:canonical:ubuntu_linux:vim-lesstif, p-cpe:/a:canonical:ubuntu_linux:vim-nox, p-cpe:/a:canonical:ubuntu_linux:vim-nox-py2, p-cpe:/a:canonical:ubuntu_linux:vim-runtime, p-cpe:/a:canonical:ubuntu_linux:vim-tiny, p-cpe:/a:canonical:ubuntu_linux:xxd

Required KB Items: Host/cpu, Host/Ubuntu, Host/Ubuntu/release, Host/Debian/dpkg-l

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 11/15/2021

Vulnerability Publication Date: 12/1/2017

Reference Information

CVE: CVE-2017-17087, CVE-2019-20807, CVE-2021-3872, CVE-2021-3903, CVE-2021-3927, CVE-2021-3928

IAVB: 2020-B-0053-S

USN: 5147-1