CVE-2021-39537

high

Description

An issue was discovered in ncurses through v6.2-1. _nc_captoinfo in captoinfo.c has a heap-based buffer overflow.

References

https://support.apple.com/kb/HT213488

https://support.apple.com/kb/HT213444

https://support.apple.com/kb/HT213443

http://seclists.org/fulldisclosure/2022/Oct/45

http://seclists.org/fulldisclosure/2022/Oct/43

http://seclists.org/fulldisclosure/2022/Oct/41

http://seclists.org/fulldisclosure/2022/Oct/28

http://cvsweb.netbsd.org/bsdweb.cgi/pkgsrc/devel/ncurses/patches/patch-ncurses_tinfo_captoinfo.c?rev=1.1&content-type=text/x-cvsweb-markup

https://support.apple.com/en-us/HT213443

https://security.netapp.com/advisory/ntap-20230427-0012/

https://lists.gnu.org/archive/html/bug-ncurses/2021-10/msg00023.html

https://lists.gnu.org/archive/html/bug-ncurses/2020-08/msg00006.html

https://lists.debian.org/debian-lts-announce/2023/12/msg00004.html

https://euvd.enisa.europa.eu/vulnerability/EUVD-2021-25894

Details

Source: Mitre, NVD

Published: 2021-09-20

Updated: 2026-10-08

Risk Information

CVSS v2

Base Score: 6.8

Vector: CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:P

Severity: Medium

CVSS v3

Base Score: 8.8

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

Severity: High

EPSS

EPSS: 0.03231