Bug 2045355 (CVE-2022-0318) - CVE-2022-0318 vim: Heap-based buffer overflow in utf_head_off() in mbyte.c
Summary: CVE-2022-0318 vim: Heap-based buffer overflow in utf_head_off() in mbyte.c
Keywords:
Status: CLOSED ERRATA
Alias: CVE-2022-0318
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 2045356 2045564 2045565 2045566 2045574
Blocks: 2045360
TreeView+ depends on / blocked
 
Reported: 2022-01-25 16:29 UTC by Guilherme de Almeida Suckevicz
Modified: 2022-09-19 20:02 UTC (History)
17 users (show)

Fixed In Version: vim 8.2.4216
Doc Type: If docs needed, set a value
Doc Text:
A flaw was found in vim. The vulnerability occurs due to reading beyond the end of a line in the utf_head_off function, which can lead to a heap buffer overflow. This flaw allows an attacker to input a specially crafted file, leading to a crash or code execution.
Clone Of:
Environment:
Last Closed: 2022-03-15 16:01:12 UTC
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2022:0894 0 None None None 2022-03-15 10:21:05 UTC

Description Guilherme de Almeida Suckevicz 2022-01-25 16:29:57 UTC 
Heap-based Buffer Overflow in vim/vim prior to 8.2.

Reference:
https://huntr.dev/bounties/0d10ba02-b138-4e68-a284-67f781a62d08

Upstream patch:
https://github.com/vim/vim/commit/57df9e8a9f9ae1aafdde9b86b10ad907627a87dc
Comment 1 Guilherme de Almeida Suckevicz 2022-01-25 16:30:14 UTC 
Created vim tracking bugs for this issue:

Affects: fedora-all [bug 2045356]
Comment 4 juneau 2022-01-25 17:31:27 UTC 
Marked services affected/delegated. Affected code is present, however impact is moderate and actual occurrence of flaw is unlikely.
Comment 10 errata-xmlrpc 2022-03-15 10:21:01 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2022:0894 https://access.redhat.com/errata/RHSA-2022:0894
Comment 11 Product Security DevOps Team 2022-03-15 16:01:09 UTC 
This bug is now closed. Further updates for individual products will be reflected on the CVE page(s):

https://access.redhat.com/security/cve/cve-2022-0318
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