USN-5292-2

See a problem?
Please try reporting it to the source first.

Source

https://ubuntu.com/security/notices/USN-5292-2

Import Source

https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-5292-2.json

JSON Data

https://api.test.osv.dev/v1/vulns/USN-5292-2

Related

Published

2022-02-18T01:07:38.514473Z

Modified

2022-02-18T01:07:38.514473Z

Summary

snapd vulnerabilities

Details

USN-5292-1 fixed vulnerabilities in snapd. This update provides the corresponding update for the riscv64 architecture.

Original advisory details:

James Troup discovered that snap did not properly manage the permissions for the snap directories. A local attacker could possibly use this issue to expose sensitive information. (CVE-2021-3155)

Ian Johnson discovered that snapd did not properly validate content interfaces and layout paths. A local attacker could possibly use this issue to inject arbitrary AppArmor policy rules, resulting in a bypass of intended access restrictions. (CVE-2021-4120)

The Qualys Research Team discovered that snapd did not properly validate the location of the snap-confine binary. A local attacker could possibly use this issue to execute other arbitrary binaries and escalate privileges. (CVE-2021-44730)

The Qualys Research Team discovered that a race condition existed in the snapd snap-confine binary when preparing a private mount namespace for a snap. A local attacker could possibly use this issue to escalate privileges and execute arbitrary code. (CVE-2021-44731)

References

Affected packages

Ubuntu:20.04:LTS / snapd

Package

Name: snapd
Purl: pkg:deb/ubuntu/snapd?arch=src?distro=focal

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

2.54.3+20.04.1

Affected versions

2.*

2.41+19.10.1

2.42.1+20.04

2.43.3+git1.8109f8

2.44~pre1+20.04

2.44+20.04

2.44.2+20.04

2.44.3+20.04

2.45.1+20.04

2.45.1+20.04.2

2.46.1+20.04

2.47.1+20.04

2.48+20.04

2.48.3+20.04

2.49.2+20.04

2.51.1+20.04ubuntu2

2.54.2+20.04ubuntu2

2.54.3+20.04

Ecosystem specific

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_version": "2.54.3+20.04.1",
            "binary_name": "golang-github-snapcore-snapd-dev"
        },
        {
            "binary_version": "2.54.3+20.04.1",
            "binary_name": "golang-github-ubuntu-core-snappy-dev"
        },
        {
            "binary_version": "2.54.3+20.04.1",
            "binary_name": "snap-confine"
        },
        {
            "binary_version": "2.54.3+20.04.1",
            "binary_name": "snapd"
        },
        {
            "binary_version": "2.54.3+20.04.1",
            "binary_name": "snapd-dbgsym"
        },
        {
            "binary_version": "2.54.3+20.04.1",
            "binary_name": "snapd-xdg-open"
        },
        {
            "binary_version": "2.54.3+20.04.1",
            "binary_name": "ubuntu-core-launcher"
        },
        {
            "binary_version": "2.54.3+20.04.1",
            "binary_name": "ubuntu-core-snapd-units"
        },
        {
            "binary_version": "2.54.3+20.04.1",
            "binary_name": "ubuntu-snappy"
        },
        {
            "binary_version": "2.54.3+20.04.1",
            "binary_name": "ubuntu-snappy-cli"
        }
    ]
}