CVE-2021-39537
Published: 20 September 2021
An issue was discovered in ncurses through v6.2-1. _nc_captoinfo in captoinfo.c has a heap-based buffer overflow.
Notes
| Author | Note |
|---|---|
| mdeslaur | read of size 1, DoS only |
Priority
Status
| Package | Release | Status |
|---|---|---|
|
ncurses Launchpad, Ubuntu, Debian |
bionic |
Released
(6.1-1ubuntu1.18.04.1)
|
| focal |
Released
(6.2-0ubuntu2.1)
|
|
| hirsute |
Ignored
(end of life)
|
|
| impish |
Not vulnerable
(6.2+20201114-2build1)
|
|
| jammy |
Not vulnerable
(6.3-2)
|
|
| kinetic |
Not vulnerable
(6.3-2)
|
|
| lunar |
Not vulnerable
(6.3-2)
|
|
| trusty |
Released
(5.9+20140118-1ubuntu1+esm2)
Available with Ubuntu Pro or Ubuntu Pro (Infra-only) |
|
| upstream |
Released
(6.2-20200531, 6.3)
|
|
| xenial |
Released
(6.0+20160213-1ubuntu1+esm2)
Available with Ubuntu Pro or Ubuntu Pro (Infra-only) |
|
|
Patches: upstream: https://github.com/mirror/ncurses/commit/790a85dbd4a81d5f5d8dd02a44d84f01512ef443 |
||
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 8.8 |
| Attack vector | Network |
| Attack complexity | Low |
| Privileges required | None |
| User interaction | Required |
| Scope | Unchanged |
| Confidentiality | High |
| Integrity impact | High |
| Availability impact | High |
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |