Bug 2129838 (CVE-2022-3297)

Summary:	CVE-2022-3297 vim: use-after-free in process_next_cpt_value() at insexpand.c
Product:	[Other] Security Response	Reporter:	TEJ RATHI <trathi>
Component:	vulnerability	Assignee:	Nobody <nobody>
Status:	NEW ---	QA Contact:
Severity:	low	Docs Contact:
Priority:	low
Version:	unspecified	CC:	gchamoul, karsten, zdohnal
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	vim 9.0.0579	Doc Type:	If docs needed, set a value
Doc Text:	A heap use-after-free vulnerability was found in Vim's process_next_cpt_value() function of the src/insexpand.c file. This flaw occurs due to the usage of freed memory when 'tagfunc' wipes out the buffer that holds 'complete.' This flaw allows an attacker to trick a user into opening a specially crafted file, triggering a heap use-after-free issue that causes an application to crash, possibly executing code and corrupting memory.	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:	2129839, 2132748
Bug Blocks:	2129840

Description TEJ RATHI 2022-09-26 12:11:59 UTC

Use After Free in vim/vim prior to 9.0.0579.

https://github.com/vim/vim/commit/0ff01835a40f549c5c4a550502f62a2ac9ac447c
https://huntr.dev/bounties/1aa9ec92-0355-4710-bf85-5bce9effa01c

Comment 1 TEJ RATHI 2022-09-26 12:13:23 UTC

Created vim tracking bugs for this issue:

Affects: fedora-all [bug 2129839]