Bug 2176457 (CVE-2023-1175)

Summary:	CVE-2023-1175 vim: Incorrect Calculation of Buffer Size
Product:	[Other] Security Response	Reporter:	Pedro Sampaio <psampaio>
Component:	vulnerability	Assignee:	Nobody <nobody>
Status:	NEW ---	QA Contact:
Severity:	low	Docs Contact:
Priority:	low
Version:	unspecified	CC:	jburrell, zdohnal
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	vim 9.0.1378	Doc Type:	If docs needed, set a value
Doc Text:	A flaw was found in Vim. There is an incorrect calculation of buffer size issue found in Vim's yank_copy_line() function of the register.c file. This flaw allows illegal memory access when using virtual editing as "startspaces" goes negative. An attacker can trick a user into opening a specially crafted file, triggering an issue that causes an application to crash leading to a denial of service, corrupting memory, and possibly executing code.	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:	2176458, 2177975, 2177976
Bug Blocks:	2176460

Description Pedro Sampaio 2023-03-08 12:59:02 UTC

Incorrect Calculation of Buffer Size in GitHub repository vim/vim prior to 9.0.1378.

References:

https://github.com/vim/vim/commit/c99cbf8f289bdda5d4a77d7ec415850a520330ba
https://huntr.dev/bounties/7e93fc17-92eb-4ae7-b01a-93bb460b643e

Comment 1 Pedro Sampaio 2023-03-08 12:59:17 UTC

Created vim tracking bugs for this issue:

Affects: fedora-all [bug 2176458]