CVE-2021-39537

moderate-risk
Published 2021-09-20

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

Do I need to act?

-
0.36% chance of exploitation
EPSS score — low exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
8
CVSS 8.8/10 High
NETWORK / LOW complexity

Affected Products (4)

Affected Vendors

Apple Gnu

References (24)

Patch http://cvsweb.netbsd.org/bsdweb.cgi/pkgsrc/devel/ncurses/patches/patch-ncurses_t...
Mailing List http://seclists.org/fulldisclosure/2022/Oct/28
Mailing List http://seclists.org/fulldisclosure/2022/Oct/41
Mailing List http://seclists.org/fulldisclosure/2022/Oct/43
Mailing List http://seclists.org/fulldisclosure/2022/Oct/45
https://lists.debian.org/debian-lts-announce/2023/12/msg00004.html
Exploit https://lists.gnu.org/archive/html/bug-ncurses/2020-08/msg00006.html
Mailing List https://lists.gnu.org/archive/html/bug-ncurses/2021-10/msg00023.html
https://security.netapp.com/advisory/ntap-20230427-0012/
Third Party Advisory https://support.apple.com/kb/HT213443
Third Party Advisory https://support.apple.com/kb/HT213444
Third Party Advisory https://support.apple.com/kb/HT213488
Patch http://cvsweb.netbsd.org/bsdweb.cgi/pkgsrc/devel/ncurses/patches/patch-ncurses_t...
Mailing List http://seclists.org/fulldisclosure/2022/Oct/28
Mailing List http://seclists.org/fulldisclosure/2022/Oct/41
Mailing List http://seclists.org/fulldisclosure/2022/Oct/43
Mailing List http://seclists.org/fulldisclosure/2022/Oct/45
https://lists.debian.org/debian-lts-announce/2023/12/msg00004.html
Exploit https://lists.gnu.org/archive/html/bug-ncurses/2020-08/msg00006.html
Mailing List https://lists.gnu.org/archive/html/bug-ncurses/2021-10/msg00023.html
and 4 more references
41
/ 100
moderate-risk
Severity 30/34 · Critical
Exploitability 1/34 · Minimal
Exposure 10/34 · Low