Bug 2191704 (CVE-2023-29491)

Summary:	CVE-2023-29491 ncurses: Local users can trigger security-relevant memory corruption via malformed data
Product:	[Other] Security Response	Reporter:	Pedro Sampaio <psampaio>
Component:	vulnerability	Assignee:	Nobody <nobody>
Status:	NEW ---	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	adudiak, bdettelb, caswilli, dffrench, dkuc, fjansen, gzaronik, hbraun, jburrell, jmitchel, jobaror, jtanner, kaycoth, kshier, mlichvar, ngough, nweather, rgodfrey, stcannon, yguenane
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	If docs needed, set a value
Doc Text:	A vulnerability was found in ncurses and occurs when used by a setuid application. This flaw allows local users to trigger security-relevant memory corruption via malformed data in a terminfo database file found in $HOME/.terminfo or reached via the TERMINFO or TERM environment variable.	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:	2192456, 2192457, 2192458, 2192459
Bug Blocks:	2191705

Description Pedro Sampaio 2023-04-28 20:47:45 UTC

ncurses before 6.4 20230408, when used by a setuid application, allows local users to trigger security-relevant memory corruption via malformed data in a terminfo database file that is found in $HOME/.terminfo or reached via the TERMINFO or TERM environment variable.

https://www.openwall.com/lists/oss-security/2023/04/13/4
https://www.openwall.com/lists/oss-security/2023/04/12/5
http://ncurses.scripts.mit.edu/?p=ncurses.git;a=commit;h=eb51b1ea1f75a0ec17c9c5937cb28df1e8eeec56
http://www.openwall.com/lists/oss-security/2023/04/19/10
http://www.openwall.com/lists/oss-security/2023/04/19/11

Comment 9 Miroslav Lichvar 2023-08-15 14:48:06 UTC

*** Bug 2186313 has been marked as a duplicate of this bug. ***