CVE-2023-45918

2024-02-1600:00:00

ubuntu.com

ncurses vulnerability 2023-45918

null pointer dereference

tgetstr

lib_termcap.c

terminfo database files

security impact

low priority

7.8 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

8.1 High

AI Score

Confidence

High

0.0004 Low

EPSS

Percentile

9.1%

JSON

ncurses 6.4-20230610 has a NULL pointer dereference in tgetstr in
tinfo/lib_termcap.c.

Notes

Author	Note
	Priority reason: no security impact as terminfo files are trusted
mdeslaur	This is in the code that parses terminfo database files. terminfo files are normally trusted, and since the fix for CVE-2023-29491, we no longer parse terminfo files when apps are setuid. As such, this doesn’t really have a security impact. Setting priority to low. fixed in 20230615

OSVersionArchitecturePackageVersionFilename
ubuntu18.04noarchncurses< anyUNKNOWN
ubuntu20.04noarchncurses< anyUNKNOWN
ubuntu22.04noarchncurses< anyUNKNOWN
ubuntu14.04noarchncurses< anyUNKNOWN
ubuntu16.04noarchncurses< anyUNKNOWN

OS	Version	Architecture	Package	Version	Filename
ubuntu	18.04	noarch	ncurses	< any	UNKNOWN
ubuntu	20.04	noarch	ncurses	< any	UNKNOWN
ubuntu	22.04	noarch	ncurses	< any	UNKNOWN
ubuntu	14.04	noarch	ncurses	< any	UNKNOWN
ubuntu	16.04	noarch	ncurses	< any	UNKNOWN