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ubuntuUbuntuUSN-5057-1
HistoryAug 31, 2021 - 12:00 a.m.

Squashfs-Tools vulnerability

2021-08-3100:00:00
ubuntu.com
103

5.8 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

8.1 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

HIGH

Availability Impact

HIGH

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

8.2 High

AI Score

Confidence

High

0.012 Low

EPSS

Percentile

85.3%

Releases

  • Ubuntu 21.04
  • Ubuntu 20.04 LTS
  • Ubuntu 18.04 ESM

Packages

  • squashfs-tools - Tools to create and modify squashfs filesystems

Details

Etienne Stalmans discovered that Squashfs-Tools mishandled certain malformed SQUASHFS files. An attacker could use this vulnerability to write arbitrary files to the filesystem.

OSVersionArchitecturePackageVersionFilename
Ubuntu21.04noarchsquashfs-tools< 1:4.4-2ubuntu0.1UNKNOWN
Ubuntu21.04noarchsquashfs-tools-dbgsym< 1:4.4-2ubuntu0.1UNKNOWN
Ubuntu20.04noarchsquashfs-tools< 1:4.4-1ubuntu0.1UNKNOWN
Ubuntu20.04noarchsquashfs-tools-dbgsym< 1:4.4-1ubuntu0.1UNKNOWN
Ubuntu18.04noarchsquashfs-tools< 1:4.3-6ubuntu0.18.04.3UNKNOWN
Ubuntu18.04noarchsquashfs-tools-dbgsym< 1:4.3-6ubuntu0.18.04.3UNKNOWN

5.8 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

8.1 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

HIGH

Availability Impact

HIGH

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

8.2 High

AI Score

Confidence

High

0.012 Low

EPSS

Percentile

85.3%