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CVE-2021-4166

Publication date 25 December 2021

Last updated 24 July 2024


Ubuntu priority

Cvss 3 Severity Score

7.1 · High

Score breakdown

vim is vulnerable to Out-of-bounds Read

Read the notes from the security team

Status

Package Ubuntu Release Status
vim 22.10 kinetic
Not affected
22.04 LTS jammy
Not affected
21.10 impish Ignored end of life
21.04 hirsute Ignored end of life
20.04 LTS focal
Fixed 2:8.1.2269-1ubuntu5.14
18.04 LTS bionic Ignored see notes
16.04 LTS xenial Ignored see notes
14.04 LTS trusty Ignored see notes

Notes


ccdm94

code in bionic and earlier does not include file src/arglist.c, which is the patched file. The patched code for these releases seems to be instead present in src/buffer.c, as seen in commit 4ad62155a10. Changes that led to the creation of file arglist.c and changes made to the code that follow the creation of this file are significant, which would result in an intrusive backport should the altered CVE patch and other necessary changes be applied in bionic and earlier. Consequently, the issue will be marked as ignored for the previously mentioned releases.

Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package Patch details
vim

Severity score breakdown

Parameter Value
Base score 7.1 · High
Attack vector Local
Attack complexity Low
Privileges required None
User interaction Required
Scope Unchanged
Confidentiality High
Integrity impact None
Availability impact High
Vector CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H

References

Related Ubuntu Security Notices (USN)

Other references