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ubuntuUbuntuUSN-4692-1
HistoryJan 13, 2021 - 12:00 a.m.

tar vulnerabilities

2021-01-1300:00:00
ubuntu.com
95

CVSS2

5

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

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

CVSS3

4.7

Attack Vector

LOCAL

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

AI Score

6.8

Confidence

Low

EPSS

0.011

Percentile

84.4%

Releases

  • Ubuntu 20.10
  • Ubuntu 20.04 LTS
  • Ubuntu 18.04 ESM
  • Ubuntu 16.04 ESM
  • Ubuntu 14.04 ESM
  • Ubuntu 12.04

Packages

  • tar - GNU version of the tar archiving utility

Details

Chris Siebenmann discovered that tar incorrectly handled extracting files
resized during extraction when invoked with the --sparse flag. An attacker
could possibly use this issue to cause a denial of service. This issue
only affected Ubuntu 12.04 ESM, Ubuntu 14.04 ESM, Ubuntu 16.04 LTS and
Ubuntu 18.04 LTS. (CVE-2018-20482)

Daniel Axtens discovered that tar incorrectly handled certain malformed
tar files. If a user or automated system were tricked into processing a
specially crafted tar archive, a remote attacker could use this issue to
cause tar to crash, resulting in a denial of service. (CVE-2019-9923)

OSVersionArchitecturePackageVersionFilename
Ubuntu20.10noarchtar< 1.30+dfsg-7ubuntu0.20.10.1UNKNOWN
Ubuntu20.10noarchtar-dbgsym< 1.30+dfsg-7ubuntu0.20.10.1UNKNOWN
Ubuntu20.10noarchtar-scripts< 1.30+dfsg-7ubuntu0.20.10.1UNKNOWN
Ubuntu20.04noarchtar< 1.30+dfsg-7ubuntu0.20.04.1UNKNOWN
Ubuntu20.04noarchtar-dbgsym< 1.30+dfsg-7ubuntu0.20.04.1UNKNOWN
Ubuntu20.04noarchtar-scripts< 1.30+dfsg-7ubuntu0.20.04.1UNKNOWN
Ubuntu18.04noarchtar< 1.29b-2ubuntu0.2UNKNOWN
Ubuntu18.04noarchtar-dbgsym< 1.29b-2ubuntu0.2UNKNOWN
Ubuntu18.04noarchtar-scripts< 1.29b-2ubuntu0.2UNKNOWN
Ubuntu16.04noarchtar< 1.28-2.1ubuntu0.2UNKNOWN
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1-10 of 181

CVSS2

5

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

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

CVSS3

4.7

Attack Vector

LOCAL

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

AI Score

6.8

Confidence

Low

EPSS

0.011

Percentile

84.4%