Bug 2150770 (CVE-2022-3491)

Summary:	CVE-2022-3491 vim: Heap-based Buffer Overflow prior to 9.0.0742
Product:	[Other] Security Response	Reporter:	Borja Tarraso <btarraso>
Component:	vulnerability	Assignee:	Nobody <nobody>
Status:	NEW ---	QA Contact:
Severity:	low	Docs Contact:
Priority:	low
Version:	unspecified	CC:	adudiak, bdettelb, caswilli, dffrench, dhalasz, fjansen, gzaronik, jburrell, jkoehler, jwong, jwon, kaycoth, kshier, micjohns, ngough, rgodfrey, sthirugn, vkrizan, vkumar, vmugicag, zdohnal
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	vim 9.0.0742	Doc Type:	If docs needed, set a value
Doc Text:	A heap-based buffer overflow flaw was found in Vim's skipwhite() function of the charset.c file. This issue occurs when reading data past the end of the line when compiling a function with errors. This could allows an attacker to trick a user into opening a specially crafted file, triggering an out-of-bounds read that causes an application to crash, leading to a denial of service.	Story Points:	---
Clone Of:		Environment:
Last Closed:		Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:	2156273
Bug Blocks:	2151568

Description Borja Tarraso 2022-12-05 09:24:38 UTC

Heap-based Buffer Overflow in vim/vim prior to 9.0.0742 when reading past end of the line when compiling a function may return an invalid pointer.

Comment 3 TEJ RATHI 2022-12-26 05:07:12 UTC

References:

https://github.com/vim/vim/commit/3558afe9e9e904cabb8475392d859f2d2fc21041
https://huntr.dev/bounties/6e6e05c2-2cf7-4aa5-a817-a62007bf92cb

Comment 4 TEJ RATHI 2022-12-26 05:53:49 UTC

Created vim tracking bugs for this issue:

Affects: fedora-all [bug 2156273]