USN-5292-3

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Source

https://ubuntu.com/security/notices/USN-5292-3

Import Source

https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-5292-3.json

JSON Data

https://api.test.osv.dev/v1/vulns/USN-5292-3

Related

Published

2022-02-18T02:21:20.350668Z

Modified

2022-02-18T02:21:20.350668Z

Summary

snapd vulnerabilities

Details

USN-5292-1 fixed several vulnerabilities in snapd. This update provides the corresponding update for Ubuntu 14.04 ESM and Ubuntu 16.04 ESM.

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:Pro:14.04:LTS / snapd

Package

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

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

2.54.3+14.04~esm1

Affected versions

2.*

2.21~14.04.2

2.22.2~14.04

2.22.3~14.04

2.22.6~14.04

2.23.1~14.04

2.24.1~14.04

2.25~14.04

2.26.10~14.04

2.27.5~14.04

2.28.5~14.04

2.29.4.2~14.04

2.32.3.2~14.04

2.32.9~14.04

2.33.1~14.04

2.34.2~14.04

2.34.2~14.04.1

2.37.4~14.04.1

2.38~14.04

Ecosystem specific

{
    "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro",
    "binaries": [
        {
            "binary_version": "2.54.3+14.04~esm1",
            "binary_name": "golang-github-snapcore-snapd-dev"
        },
        {
            "binary_version": "2.54.3+14.04~esm1",
            "binary_name": "golang-github-ubuntu-core-snappy-dev"
        },
        {
            "binary_version": "2.54.3+14.04~esm1",
            "binary_name": "snap-confine"
        },
        {
            "binary_version": "2.54.3+14.04~esm1",
            "binary_name": "snapd"
        },
        {
            "binary_version": "2.54.3+14.04~esm1",
            "binary_name": "snapd-dbgsym"
        },
        {
            "binary_version": "2.54.3+14.04~esm1",
            "binary_name": "snapd-xdg-open"
        },
        {
            "binary_version": "2.54.3+14.04~esm1",
            "binary_name": "ubuntu-core-launcher"
        },
        {
            "binary_version": "2.54.3+14.04~esm1",
            "binary_name": "ubuntu-core-snapd-units"
        },
        {
            "binary_version": "2.54.3+14.04~esm1",
            "binary_name": "ubuntu-snappy"
        },
        {
            "binary_version": "2.54.3+14.04~esm1",
            "binary_name": "ubuntu-snappy-cli"
        }
    ]
}

Ubuntu:Pro:16.04:LTS / snapd

Package

Name: snapd
Purl: pkg:deb/ubuntu/snapd?arch=src?distro=esm-infra/xenial

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

2.54.3+16.04~esm2

Affected versions

1.*

1.9

1.9.1.1

1.9.2

2.*

2.0

2.0.1

2.0.2

2.0.3

2.0.5

2.0.8

2.0.9

2.0.10

2.11+0.16.04

2.12+0.16.04

2.13

2.14.2~16.04

2.15.2ubuntu1

2.16ubuntu3

2.17.1ubuntu1

2.20.1ubuntu1

2.21

2.22.2

2.22.3

2.22.6

2.23.1

2.24.1

2.25

2.26.10

2.27.5

2.28.5

2.29.4.2

2.32.3.2

2.32.9

2.33.1ubuntu2

2.34.2

2.34.2ubuntu0.1

2.37.4

2.37.4ubuntu0.1

2.38

2.39.2

2.39.2ubuntu0.2

2.40

2.42.1

2.45.1

2.45.1ubuntu0.2

2.46.1

2.47.1

2.48

2.48.3

Ecosystem specific

{
    "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro",
    "binaries": [
        {
            "binary_version": "2.54.3+16.04~esm2",
            "binary_name": "golang-github-snapcore-snapd-dev"
        },
        {
            "binary_version": "2.54.3+16.04~esm2",
            "binary_name": "golang-github-ubuntu-core-snappy-dev"
        },
        {
            "binary_version": "2.54.3+16.04~esm2",
            "binary_name": "snap-confine"
        },
        {
            "binary_version": "2.54.3+16.04~esm2",
            "binary_name": "snapd"
        },
        {
            "binary_version": "2.54.3+16.04~esm2",
            "binary_name": "snapd-dbgsym"
        },
        {
            "binary_version": "2.54.3+16.04~esm2",
            "binary_name": "snapd-xdg-open"
        },
        {
            "binary_version": "2.54.3+16.04~esm2",
            "binary_name": "ubuntu-core-launcher"
        },
        {
            "binary_version": "2.54.3+16.04~esm2",
            "binary_name": "ubuntu-core-snapd-units"
        },
        {
            "binary_version": "2.54.3+16.04~esm2",
            "binary_name": "ubuntu-snappy"
        },
        {
            "binary_version": "2.54.3+16.04~esm2",
            "binary_name": "ubuntu-snappy-cli"
        }
    ]
}