Detections
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Amazon Linux 2022 : vim (ALAS2022-2021-001)

high Nessus Plugin ID 212490

Synopsis

The remote Amazon Linux 2022 host is missing a security update.

Description

It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2022-2021-001 advisory.

 A flaw was found in vim. A possible heap-based buffer overflow could allow an attacker to input a specially crafted file leading to a crash or code execution. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability. (CVE-2021-3778)

 A use-after-free vulnerability in vim could allow an attacker to input a specially crafted file leading to memory corruption and a potentially exploitable crash or code execution. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability. (CVE-2021-3796)

 An out-of-bounds write flaw was found in vim's drawscreen.c win_redr_status() function. This flaw allows an attacker to trick a user to open a crafted file with specific arguments in vim, triggering an out-of- bounds write. The highest threat from this vulnerability is to confidentiality, integrity, and system availability. (CVE-2021-3872)

 There's an out-of-bounds read flaw in Vim's ex_docmd.c. An attacker who is capable of tricking a user into opening a specially crafted file could trigger an out-of-bounds read on a memmove operation, potentially causing an impact to application availability. (CVE-2021-3875)

Tenable has extracted the preceding description block directly from the tested product security advisory.

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

Solution

Run 'yum update vim' to update your system.

See Also

https://alas.aws.amazon.com/AL2022/ALAS-2021-001.html

https://access.redhat.com/security/cve/CVE-2021-3778

https://access.redhat.com/security/cve/CVE-2021-3796

https://access.redhat.com/security/cve/CVE-2021-3872

https://access.redhat.com/security/cve/CVE-2021-3875

Plugin Details

Severity: High

ID: 212490

File Name: al2022_ALAS2022-2021-001.nasl

Version: 1.1

Type: local

Agent: unix

Published: 12/11/2024

Updated: 12/11/2024

Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, 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-2021-3872

CVSS v3

Risk Factor: High

Base Score: 7.8

Temporal Score: 7

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

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

Vulnerability Information

CPE: p-cpe:/a:amazon:linux:vim-filesystem, p-cpe:/a:amazon:linux:vim-x11, cpe:/o:amazon:linux:2022, p-cpe:/a:amazon:linux:vim-enhanced-debuginfo, p-cpe:/a:amazon:linux:vim-common, p-cpe:/a:amazon:linux:vim-minimal-debuginfo, p-cpe:/a:amazon:linux:vim-x11-debuginfo, p-cpe:/a:amazon:linux:vim-minimal, p-cpe:/a:amazon:linux:vim-common-debuginfo, p-cpe:/a:amazon:linux:vim-enhanced, p-cpe:/a:amazon:linux:vim-default-editor, p-cpe:/a:amazon:linux:vim-debuginfo, p-cpe:/a:amazon:linux:vim-debugsource

Required KB Items: Host/local_checks_enabled, Host/AmazonLinux/release, Host/AmazonLinux/rpm-list

Exploit Available: true

Exploit Ease: No known exploits are available

Patch Publication Date: 10/26/2021

Vulnerability Publication Date: 9/15/2021

Reference Information

CVE: CVE-2021-3778, CVE-2021-3796, CVE-2021-3872, CVE-2021-3875