CVE-2021-20193
Published: 26 March 2021
A flaw was found in the src/list.c of tar 1.33 and earlier. This flaw allows an attacker who can submit a crafted input file to tar to cause uncontrolled consumption of memory. The highest threat from this vulnerability is to system availability.
Notes
| Author | Note |
|---|---|
| sbeattie | the tar command failed to free memory. As this is a command line tool denial of service, this has been rated as priority low |
Priority
Status
| Package | Release | Status |
|---|---|---|
|
tar Launchpad, Ubuntu, Debian |
groovy |
Ignored
(end of life)
|
| impish |
Released
(1.34+dfsg-1build1)
|
|
| jammy |
Released
(1.34+dfsg-1build1)
|
|
| kinetic |
Released
(1.34+dfsg-1build1)
|
|
| lunar |
Released
(1.34+dfsg-1build1)
|
|
| trusty |
Released
(1.27.1-1ubuntu0.1+esm2)
Available with Ubuntu Pro or Ubuntu Pro (Infra-only) |
|
| xenial |
Released
(1.28-2.1ubuntu0.2+esm1)
Available with Ubuntu Pro or Ubuntu Pro (Infra-only) |
|
| bionic |
Released
(1.29b-2ubuntu0.3)
|
|
| focal |
Released
(1.30+dfsg-7ubuntu0.20.04.2)
|
|
| hirsute |
Released
(1.34+dfsg-1build1)
|
|
| upstream |
Released
(1.34)
|
|
|
Patches: upstream: https://git.savannah.gnu.org/cgit/tar.git/commit/?id=d9d4435692150fa8ff68e1b1a473d187cc3fd777 |
||
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 5.5 |
| Attack vector | Local |
| Attack complexity | Low |
| Privileges required | None |
| User interaction | Required |
| Scope | Unchanged |
| Confidentiality | None |
| Integrity impact | None |
| Availability impact | High |
| Vector | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H |