CVE-2021-20193

2021-03-2600:00:00

ubuntu.com

4.3 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:N/AC:M/Au:N/C:N/I:N/A:P

5.5 Medium

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

0.001 Low

EPSS

Percentile

32.6%

JSON

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.

Bugs

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

OSVersionArchitecturePackageVersionFilename
ubuntu18.04noarchtar< 1.29b-2ubuntu0.3UNKNOWN
ubuntu20.04noarchtar< 1.30+dfsg-7ubuntu0.20.04.2UNKNOWN
ubuntu21.04noarchtar< 1.34+dfsg-1build1UNKNOWN
ubuntu21.10noarchtar< 1.34+dfsg-1build1UNKNOWN
ubuntu22.04noarchtar< 1.34+dfsg-1build1UNKNOWN
ubuntu22.10noarchtar< 1.34+dfsg-1build1UNKNOWN
ubuntu23.04noarchtar< 1.34+dfsg-1build1UNKNOWN
ubuntu14.04noarchtar< 1.27.1-1ubuntu0.1+esm2UNKNOWN
ubuntu16.04noarchtar< 1.28-2.1ubuntu0.2+esm1UNKNOWN

OS	Version	Architecture	Package	Version	Filename
ubuntu	18.04	noarch	tar	< 1.29b-2ubuntu0.3	UNKNOWN
ubuntu	20.04	noarch	tar	< 1.30+dfsg-7ubuntu0.20.04.2	UNKNOWN
ubuntu	21.04	noarch	tar	< 1.34+dfsg-1build1	UNKNOWN
ubuntu	21.10	noarch	tar	< 1.34+dfsg-1build1	UNKNOWN
ubuntu	22.04	noarch	tar	< 1.34+dfsg-1build1	UNKNOWN
ubuntu	22.10	noarch	tar	< 1.34+dfsg-1build1	UNKNOWN
ubuntu	23.04	noarch	tar	< 1.34+dfsg-1build1	UNKNOWN
ubuntu	14.04	noarch	tar	< 1.27.1-1ubuntu0.1+esm2	UNKNOWN
ubuntu	16.04	noarch	tar	< 1.28-2.1ubuntu0.2+esm1	UNKNOWN