USN-5078-3

USN-5078-1 fixed a vulnerability in Squashfs-Tools. That update was incomplete and could still result in Squashfs-Tools mishandling certain malformed SQUASHFS files. This update fixes the problem.

We apologize for the inconvenience.

Original advisory details:

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

References

Affected packages

Ubuntu:20.04:LTS / squashfs-tools

Package

Name: squashfs-tools
Purl: pkg:deb/ubuntu/squashfs-tools@1:4.4-1ubuntu0.3?arch=source&distro=focal

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

1:4.4-1ubuntu0.3

Affected versions

1:4.*

1:4.4-1

1:4.4-1ubuntu0.1

1:4.4-1ubuntu0.2

Ecosystem specific

{
    "binaries": [
        {
            "binary_name": "squashfs-tools",
            "binary_version": "1:4.4-1ubuntu0.3"
        }
    ],
    "availability": "No subscription required"
}

Database specific

cves_map

{
    "ecosystem": "Ubuntu:20.04:LTS",
    "cves": [
        {
            "severity": [
                {
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H",
                    "type": "CVSS_V3"
                },
                {
                    "score": "medium",
                    "type": "Ubuntu"
                }
            ],
            "id": "CVE-2021-41072"
        }
    ]
}

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-5078-3.json"