CVE-2021-33910
Published: 20 July 2021
basic/unit-name.c in systemd prior to 246.15, 247.8, 248.5, and 249.1 has a Memory Allocation with an Excessive Size Value (involving strdupa and alloca for a pathname controlled by a local attacker) that results in an operating system crash.
Priority
Status
Package | Release | Status |
---|---|---|
systemd Launchpad, Ubuntu, Debian |
jammy |
Released
(248.3-1ubuntu3)
|
trusty |
Not vulnerable
|
|
upstream |
Needs triage
|
|
bionic |
Released
(237-3ubuntu10.49)
|
|
focal |
Released
(245.4-4ubuntu3.10)
|
|
groovy |
Released
(246.6-1ubuntu1.7)
|
|
hirsute |
Released
(247.3-3ubuntu3.4)
|
|
xenial |
Released
(229-4ubuntu21.31+esm1)
Available with Ubuntu Pro or Ubuntu Pro (Infra-only) |
|
impish |
Released
(248.3-1ubuntu3)
|
|
Patches: upstream: https://github.com/systemd/systemd/pull/20256 |
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 |