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 |