PT-2023-9404 · Ncurses+4 · Ncurses+4

Ziqiao Kong · Published 2023-12-12 · Updated 2026-04-10 · CVE-2023-50495

Positive Technologies (AI Summary)

CVSS v2.0

7.8

High

Base vector

AV:N/AC:L/Au:N/C:N/I:N/A:C

Name of the Vulnerable Software and Affected Versions NCurse version 6.4-20230418

Description The issue is related to a segmentation fault in the nc wrap entry() component of the ncurses library, which can be exploited to cause a denial of service. This can be achieved by a remote attacker. The estimated number of potentially affected devices worldwide is not specified.

Recommendations For NCurse version 6.4-20230418, as a temporary workaround, consider disabling the nc wrap entry() function until a patch is available. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Buffer Overflow

Weakness Enumeration

CWE-119

Related Identifiers

AZL-32177

BDU:2024-07256

CVE-2023-50495

ECHO-F593-31A2-90DF

OESA-2023-1969

OPENSUSE-SU-2023_4891-1

SUSE-SU-2023:4891-1

SUSE-SU-2023:4892-1

SUSE-SU-2023_4891-1

SUSE-SU-2023_4892-1

USN-6684-1

Affected Products

Debian

Ncurses

Red Os

Suse

Ubuntu

References · 36

• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LU4MYMKFEZQ5VSCVLRIZGDQOUW3T44GT · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2023-50495 · Security Note
• https://osv.dev/vulnerability/SUSE-SU-2023:4892-1 · Vendor Advisory
• https://lists.gnu.org/archive/html/bug-ncurses/2023-04/msg00029.html · Patch
• https://osv.dev/vulnerability/UBUNTU-CVE-2023-50495 · Vendor Advisory
• https://osv.dev/vulnerability/OESA-2023-1969 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2023-50495 · Security Note
• https://osv.dev/vulnerability/ROOT-OS-DEBIAN-12-CVE-2023-50495 · Vendor Advisory
• https://lists.fedoraproject.org/archives/list/[e-mail]/message/LU4MYMKFEZQ5VSCVLRIZGDQOUW3T44GT · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2023-50495 · Vendor Advisory
• https://osv.dev/vulnerability/AZL-32177 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2023-50495 · Vendor Advisory
• https://lists.gnu.org/archive/html/bug-ncurses/2023-04/msg00020.html · Patch
• https://ubuntu.com/security/CVE-2023-50495 · Vendor Advisory
• https://osv.dev/vulnerability/USN-6684-1 · Vendor Advisory