CVE-2023-50495
published 2023-12-12CVE-2023-50495: NCurse v6.4-20230418 was discovered to contain a segmentation fault via the component _nc_wrap_entry().
PriorityP425medium6.5CVSS 3.1
AVNACLPRNUIRSUCNINAH
EPSS
0.96%
57.7th percentile
NCurse v6.4-20230418 was discovered to contain a segmentation fault via the component _nc_wrap_entry().
Affected
8 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | ncurses | < ncurses 6.4+20230625-1 (forky) | ncurses 6.4+20230625-1 (forky) |
| gnu | ncurses | >= 0 < 6.4+20230625-1 | 6.4+20230625-1 |
| gnu | ncurses | >= 0 < 6.4+20230625-1 | 6.4+20230625-1 |
| invisible-island | ncurse | — | — |
| msrc | azl3_ncurses_6.4-2_on_azure_linux_3.0 | — | — |
| msrc | cbl2_ncurses_6.4-3_on_cbl_mariner_2.0 | — | — |
| msrc | cbl_mariner_2.0_arm | — | — |
| msrc | cbl_mariner_2.0_x64 | — | — |
CVSS provenance
nvdv3.16.5MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
osv6.5MEDIUM
vendor_debian6.5MEDIUM
vendor_msrc6.5MEDIUM
vendor_redhat6.5MEDIUM
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OSV
CVE-2023-50495: NCurse v6
osv·2023-12-12·CVSS 6.5
CVE-2023-50495 [MEDIUM] CVE-2023-50495: NCurse v6
NCurse v6.4-20230418 was discovered to contain a segmentation fault via the component _nc_wrap_entry().
GHSA
GHSA-8p5h-3mcg-frjf: NCurse v6
ghsa_unreviewed·2023-12-12
CVE-2023-50495 [HIGH] GHSA-8p5h-3mcg-frjf: NCurse v6
NCurse v6.4-20230418 was discovered to contain a segmentation fault via the component _nc_wrap_entry().
Ubuntu
ncurses vulnerability
vendor_ubuntu·2024-03-07
CVE-2023-50495 ncurses vulnerability
Title: ncurses vulnerability
Summary: ncurses could be made to crash if it received specially crafted
input.
It was discovered that ncurses incorrectly handled certain function return
values, possibly leading to segmentation fault. A local attacker could possibly
use this to cause a denial of service (system crash).
Instructions: In general, a standard system update will make all the necessary changes.
Microsoft
NCurse v6.4-20230418 was discovered to contain a segmentation fault via the component _nc_wrap_entry().
vendor_msrc·2023-12-12·CVSS 6.5
CVE-2023-50495 [MEDIUM] NCurse v6.4-20230418 was discovered to contain a segmentation fault via the component _nc_wrap_entry().
NCurse v6.4-20230418 was discovered to contain a segmentation fault via the component _nc_wrap_entry().
FAQ: Is Azure Linux the only Microsoft product that includes this open-source library and is therefore potentially affected by this vulnerability?
One of the main benefits to our customers who choose to use the Azure Linux distro is the commitment to keep it up to date with the most recent and most secure versions of the open source libraries with which the distro is composed. Microsoft is committed to transparency in this work which is why we began publishing CSAF/VEX in October 2025. See this blog post for more information. If impact to additional products is identified, we will update the CVE to reflect this.
Mariner: Mariner
MITRE: MITRE
Customer Action Required: Yes
Remediation
Red Hat
ncurses: segmentation fault via _nc_wrap_entry()
vendor_redhat·2023-12-12·CVSS 6.5
CVE-2023-50495 [MEDIUM] CWE-400 ncurses: segmentation fault via _nc_wrap_entry()
ncurses: segmentation fault via _nc_wrap_entry()
NCurse v6.4-20230418 was discovered to contain a segmentation fault via the component _nc_wrap_entry().
A vulnerability was found in the NCurses package, where a segmentation fault may be triggered through _nc_wrap_entry().
Statement: Red Hat Product Security classifies this issue as having a Low security impact. This vulnerability is present in the tic program which is only used at build-time and does not exist in libncurses. The exploit can only be triggered if the user performs a specific action, such as processing terminfo from source to compiled form using trusted input, which limits the practical impact.
Mitigation: Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product
Debian
CVE-2023-50495: ncurses - NCurse v6.4-20230418 was discovered to contain a segmentation fault via the comp...
vendor_debian·2023·CVSS 6.5
CVE-2023-50495 [MEDIUM] CVE-2023-50495: ncurses - NCurse v6.4-20230418 was discovered to contain a segmentation fault via the comp...
NCurse v6.4-20230418 was discovered to contain a segmentation fault via the component _nc_wrap_entry().
Scope: local
bookworm: open
bullseye: open
forky: resolved (fixed in 6.4+20230625-1)
sid: resolved (fixed in 6.4+20230625-1)
trixie: resolved (fixed in 6.4+20230625-1)
No detection rules found.
No public exploits indexed.
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LU4MYMKFEZQ5VSCVLRIZGDQOUW3T44GT/https://lists.gnu.org/archive/html/bug-ncurses/2023-04/msg00020.htmlhttps://lists.gnu.org/archive/html/bug-ncurses/2023-04/msg00029.htmlhttps://security.netapp.com/advisory/ntap-20240119-0008/https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LU4MYMKFEZQ5VSCVLRIZGDQOUW3T44GT/https://lists.fedoraproject.org/archives/list/[email protected]/message/LU4MYMKFEZQ5VSCVLRIZGDQOUW3T44GT/https://lists.gnu.org/archive/html/bug-ncurses/2023-04/msg00020.htmlhttps://lists.gnu.org/archive/html/bug-ncurses/2023-04/msg00029.htmlhttps://security.netapp.com/advisory/ntap-20240119-0008/
2023-12-12
Published