CVE-2020-28928
Published: 24 November 2020
In musl libc through 1.2.1, wcsnrtombs mishandles particular combinations of destination buffer size and source character limit, as demonstrated by an invalid write access (buffer overflow).
Priority
Status
| Package | Release | Status |
|---|---|---|
|
musl
Launchpad, Ubuntu, Debian |
bionic |
Released
(1.1.19-1ubuntu0.1~esm1)
Available with Ubuntu Pro |
| focal |
Released
(1.1.24-1ubuntu0.1~esm1)
Available with Ubuntu Pro |
|
| groovy |
Ignored
(end of life)
|
|
| hirsute |
Ignored
(end of life)
|
|
| impish |
Ignored
(end of life)
|
|
| jammy |
Not vulnerable
(1.2.2-4)
|
|
| kinetic |
Not vulnerable
(1.2.3-1)
|
|
| lunar |
Not vulnerable
(1.2.3-1)
|
|
| mantic |
Not vulnerable
(1.2.3-1)
|
|
| noble |
Not vulnerable
(1.2.3-1)
|
|
| trusty |
Released
(0.9.15-1ubuntu0.1~esm2)
Available with Ubuntu Pro or Ubuntu Pro (Infra-only) |
|
| upstream |
Needs triage
|
|
| xenial |
Released
(1.1.9-1ubuntu0.1~esm3)
Available with Ubuntu Pro |
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 5.5 |
| Attack vector | Local |
| Attack complexity | Low |
| Privileges required | Low |
| User interaction | None |
| Scope | Unchanged |
| Confidentiality | None |
| Integrity impact | None |
| Availability impact | High |
| Vector | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |