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CVE-2020-27352 (GCVE-0-2020-27352)

Vulnerability from nvd – Published: 2024-06-21 20:06 – Updated: 2024-08-04 16:11

Summary

When generating the systemd service units for the docker snap (and other similar snaps), snapd does not specify Delegate=yes - as a result systemd will move processes from the containers created and managed by these snaps into the cgroup of the main daemon within the snap itself when reloading system units. This may grant additional privileges to a container within the snap that were not originally intended.

Severity

9.3 (Critical)


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

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator (v2.0.3)

CWE

CWE-269 - Improper Privilege Management

Assigner

canonical

References

3 references

URL	Tags
https://bugs.launchpad.net/snapd/+bug/1910456	issue-tracking
https://ubuntu.com/security/notices/USN-4728-1	vendor-advisory
https://www.cve.org/CVERecord?id=CVE-2020-27352	issue-tracking

Impacted products

2 products

Vendor	Product	Version
Canonical Ltd.	snapd	Affected: 0 , < 2.48.3 (semver)
canonical	snapd	Affected: 0 , < 2.48.3 (custom) cpe:2.3:a:canonical:snapd::::::::

Credits

Gilad Reti Nimrod Stoler

Show details on NVD website

JSON

To clipboard

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CVE-2024-5138 (GCVE-0-2024-5138)

Vulnerability from nvd – Published: 2024-05-31 21:02 – Updated: 2024-09-06 19:48

Summary

The snapctl component within snapd allows a confined snap to interact with the snapd daemon to take certain privileged actions on behalf of the snap. It was found that snapctl did not properly parse command-line arguments, allowing an unprivileged user to trigger an authorised action on behalf of the snap that would normally require administrator privileges to perform. This could possibly allow an unprivileged user to perform a denial of service or similar.

Severity

8.1 (High)


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

SSVC

Exploitation: poc Automatable: no Technical Impact: partial

CISA Coordinator (v2.0.3)

CWE

CWE-20 - Improper Input Validation

Assigner

canonical

References

4 references

URL	Tags
https://github.com/snapcore/snapd/commit/68ee9c6a…	patch
https://bugs.launchpad.net/snapd/+bug/2065077	issue-tracking
https://www.cve.org/CVERecord?id=CVE-2024-5138	issue-tracking
https://github.com/snapcore/snapd/security/adviso…	issue-tracking

Impacted products

2 products

Vendor	Product	Version
Canonical Ltd.	snapd	Affected: 0 , < 68ee9c6aa916ab87dbfd9a26030690f2cabf1e14 (custom)
canonical	snapd	Affected: 0 , < 68ee9c6aa916ab87dbfd9a26030690f2cabf1e14 (git) cpe:2.3:a:canonical:snapd::::::::

Credits

Rory McNamara from Snyk Security Labs

Show details on NVD website

JSON

To clipboard

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CVE-2022-3328 (GCVE-0-2022-3328)

Vulnerability from nvd – Published: 2024-01-08 18:04 – Updated: 2025-06-03 14:35

Summary

Race condition in snap-confine's must_mkdir_and_open_with_perms()

Severity

7.8 (High)


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

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator (v2.0.3)

CWE

CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

Assigner

canonical

References

2 references

URL	Tags
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CV…	issue-tracking
https://ubuntu.com/security/notices/USN-5753-1	third-party-advisory

Impacted products

1 product

Vendor	Product	Version
Canonical Ltd.	snapd	Affected: 0 , < 2.61.1 (semver)

Credits

Qualys

Show details on NVD website

JSON

To clipboard

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CVE-2023-1523 (GCVE-0-2023-1523)

Vulnerability from nvd – Published: 2023-09-01 18:41 – Updated: 2024-10-01 13:08

Summary

Using the TIOCLINUX ioctl request, a malicious snap could inject contents into the input of the controlling terminal which could allow it to cause arbitrary commands to be executed outside of the snap sandbox after the snap exits. Graphical terminal emulators like xterm, gnome-terminal and others are not affected - this can only be exploited when snaps are run on a virtual console.

Severity

10 (Critical)


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

SSVC

Exploitation: poc Automatable: yes Technical Impact: total

CISA Coordinator (v2.0.3)

Assigner

canonical

References

4 references

URL	Tags
https://ubuntu.com/security/notices/USN-6125-1	vendor-advisory
https://github.com/snapcore/snapd/pull/12849	issue-tracking
https://marc.info/?l=oss-security&m=167879021709955&w=2	mailing-list
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CV…	issue-tracking

Impacted products

1 product

Vendor	Product	Version
Canonical Ltd.	snapd	Unaffected: 2.59.5

Date Public

2023-05-25 00:00

Show details on NVD website

JSON

To clipboard

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CVE-2021-4120 (GCVE-0-2021-4120)

Vulnerability from nvd – Published: 2022-02-17 22:15 – Updated: 2024-08-03 17:16

Title

snapd could be made to bypass intended access restrictions through snap content interfaces and layout paths

Summary

snapd 2.54.2 fails to perform sufficient validation of snap content interface and layout paths, resulting in the ability for snaps to inject arbitrary AppArmor policy rules via malformed content interface and layout declarations and hence escape strict snap confinement. Fixed in snapd versions 2.54.3+18.04, 2.54.3+20.04 and 2.54.3+21.10.1

Severity

8.2 (High)


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

CWE

CWE-20 - Improper Input Validation

Assigner

canonical

References

5 references

URL	Tags
https://ubuntu.com/security/notices/USN-5292-1	x_refsource_MISC
https://bugs.launchpad.net/snapd/+bug/1949368	x_refsource_MISC
http://www.openwall.com/lists/oss-security/2022/02/18/2	mailing-listx_refsource_MLIST
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisoryx_refsource_FEDORA
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisoryx_refsource_FEDORA

Impacted products

1 product

Vendor	Product	Version
Canonical Ltd.	snapd	Affected: unspecified , ≤ 2.54.2 (custom)

Credits

Ian Johnson

Show details on NVD website

JSON

To clipboard

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CVE-2021-44731 (GCVE-0-2021-44731)

Vulnerability from nvd – Published: 2022-02-17 00:00 – Updated: 2024-08-04 04:32

Title

snapd could be made to escalate privileges and run programs as administrator

Summary

A race condition existed in the snapd 2.54.2 snap-confine binary when preparing a private mount namespace for a snap. This could allow a local attacker to gain root privileges by bind-mounting their own contents inside the snap's private mount namespace and causing snap-confine to execute arbitrary code and hence gain privilege escalation. Fixed in snapd versions 2.54.3+18.04, 2.54.3+20.04 and 2.54.3+21.10.1

Severity

7.8 (High)


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

CWE

CWE-362 - Race Condition (Concurrent Execution using Shared Resource with Improper Synchronization)

Assigner

canonical

References

10 references

URL	Tags
https://ubuntu.com/security/notices/USN-5292-1
http://www.openwall.com/lists/oss-security/2022/02/18/2	mailing-list
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisory
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisory
https://www.debian.org/security/2022/dsa-5080	vendor-advisory
http://www.openwall.com/lists/oss-security/2022/02/23/1	mailing-list
http://www.openwall.com/lists/oss-security/2022/02/23/2	mailing-list
http://www.openwall.com/lists/oss-security/2022/11/30/2	mailing-list
http://seclists.org/fulldisclosure/2022/Dec/4	mailing-list
http://packetstormsecurity.com/files/170176/snap-…

Impacted products

1 product

Vendor	Product	Version
Canonical Ltd.	snapd	Affected: unspecified , ≤ 2.54.2 (custom)

Credits

Qualys Research Team

Show details on NVD website

JSON

To clipboard

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CVE-2021-44730 (GCVE-0-2021-44730)

Vulnerability from nvd – Published: 2022-02-17 22:15 – Updated: 2024-08-04 04:32

Title

snapd could be made to escalate privileges and run programs as administrator

Summary

snapd 2.54.2 did not properly validate the location of the snap-confine binary. A local attacker who can hardlink this binary to another location to cause snap-confine to execute other arbitrary binaries and hence gain privilege escalation. Fixed in snapd versions 2.54.3+18.04, 2.54.3+20.04 and 2.54.3+21.10.1

Severity

7.8 (High)


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

CWE

CWE-59 - Improper Link Resolution Before File Access ('Link Following')

Assigner

canonical

References

6 references

URL	Tags
https://ubuntu.com/security/notices/USN-5292-1	x_refsource_MISC
http://www.openwall.com/lists/oss-security/2022/02/18/2	mailing-listx_refsource_MLIST
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisoryx_refsource_FEDORA
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisoryx_refsource_FEDORA
https://www.debian.org/security/2022/dsa-5080	vendor-advisoryx_refsource_DEBIAN
http://www.openwall.com/lists/oss-security/2022/02/23/1	mailing-listx_refsource_MLIST

Impacted products

1 product

Vendor	Product	Version
Canonical Ltd.	snapd	Affected: unspecified , ≤ 2.54.2 (custom)

Credits

Qualys Research Team

Show details on NVD website

JSON

To clipboard

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CVE-2021-3155 (GCVE-0-2021-3155)

Vulnerability from nvd – Published: 2022-02-17 22:15 – Updated: 2024-08-03 16:45

Title

snapd created ~/snap with too-wide permissions

Summary

snapd 2.54.2 and earlier created ~/snap directories in user home directories without specifying owner-only permissions. This could allow a local attacker to read information that should have been private. Fixed in snapd versions 2.54.3+18.04, 2.54.3+20.04 and 2.54.3+21.10.1

Severity

3.8 (Low)


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

CWE

CWE-276 - Incorrect Default Permissions

Assigner

canonical

References

3 references

URL	Tags
https://ubuntu.com/security/notices/USN-5292-1	x_refsource_MISC
https://github.com/snapcore/snapd/commit/6bcaeecc…	x_refsource_MISC
https://github.com/snapcore/snapd/commit/7d2a9666…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
Canonical Ltd.	snapd	Affected: unspecified , ≤ 2.54.2 (custom)

Credits

James Troup

Show details on NVD website

JSON

To clipboard

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CVE-2020-27352 (GCVE-0-2020-27352)

Vulnerability from cvelistv5 – Published: 2024-06-21 20:06 – Updated: 2024-08-04 16:11

Summary

When generating the systemd service units for the docker snap (and other similar snaps), snapd does not specify Delegate=yes - as a result systemd will move processes from the containers created and managed by these snaps into the cgroup of the main daemon within the snap itself when reloading system units. This may grant additional privileges to a container within the snap that were not originally intended.

Severity

9.3 (Critical)


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

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator (v2.0.3)

CWE

CWE-269 - Improper Privilege Management

Assigner

canonical

References

3 references

URL	Tags
https://bugs.launchpad.net/snapd/+bug/1910456	issue-tracking
https://ubuntu.com/security/notices/USN-4728-1	vendor-advisory
https://www.cve.org/CVERecord?id=CVE-2020-27352	issue-tracking

Impacted products

2 products

Vendor	Product	Version
Canonical Ltd.	snapd	Affected: 0 , < 2.48.3 (semver)
canonical	snapd	Affected: 0 , < 2.48.3 (custom) cpe:2.3:a:canonical:snapd::::::::

Credits

Gilad Reti Nimrod Stoler

Show details on NVD website

JSON

To clipboard

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CVE-2024-5138 (GCVE-0-2024-5138)

Vulnerability from cvelistv5 – Published: 2024-05-31 21:02 – Updated: 2024-09-06 19:48

Summary

The snapctl component within snapd allows a confined snap to interact with the snapd daemon to take certain privileged actions on behalf of the snap. It was found that snapctl did not properly parse command-line arguments, allowing an unprivileged user to trigger an authorised action on behalf of the snap that would normally require administrator privileges to perform. This could possibly allow an unprivileged user to perform a denial of service or similar.

Severity

8.1 (High)


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

SSVC

Exploitation: poc Automatable: no Technical Impact: partial

CISA Coordinator (v2.0.3)

CWE

CWE-20 - Improper Input Validation

Assigner

canonical

References

4 references

URL	Tags
https://github.com/snapcore/snapd/commit/68ee9c6a…	patch
https://bugs.launchpad.net/snapd/+bug/2065077	issue-tracking
https://www.cve.org/CVERecord?id=CVE-2024-5138	issue-tracking
https://github.com/snapcore/snapd/security/adviso…	issue-tracking

Impacted products

2 products

Vendor	Product	Version
Canonical Ltd.	snapd	Affected: 0 , < 68ee9c6aa916ab87dbfd9a26030690f2cabf1e14 (custom)
canonical	snapd	Affected: 0 , < 68ee9c6aa916ab87dbfd9a26030690f2cabf1e14 (git) cpe:2.3:a:canonical:snapd::::::::

Credits

Rory McNamara from Snyk Security Labs

Show details on NVD website

JSON

To clipboard

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CVE-2022-3328 (GCVE-0-2022-3328)

Vulnerability from cvelistv5 – Published: 2024-01-08 18:04 – Updated: 2025-06-03 14:35

Summary

Race condition in snap-confine's must_mkdir_and_open_with_perms()

Severity

7.8 (High)


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

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator (v2.0.3)

CWE

CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

Assigner

canonical

References

2 references

URL	Tags
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CV…	issue-tracking
https://ubuntu.com/security/notices/USN-5753-1	third-party-advisory

Impacted products

1 product

Vendor	Product	Version
Canonical Ltd.	snapd	Affected: 0 , < 2.61.1 (semver)

Credits

Qualys

Show details on NVD website

JSON

To clipboard

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CVE-2023-1523 (GCVE-0-2023-1523)

Vulnerability from cvelistv5 – Published: 2023-09-01 18:41 – Updated: 2024-10-01 13:08

Summary

Using the TIOCLINUX ioctl request, a malicious snap could inject contents into the input of the controlling terminal which could allow it to cause arbitrary commands to be executed outside of the snap sandbox after the snap exits. Graphical terminal emulators like xterm, gnome-terminal and others are not affected - this can only be exploited when snaps are run on a virtual console.

Severity

10 (Critical)


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

SSVC

Exploitation: poc Automatable: yes Technical Impact: total

CISA Coordinator (v2.0.3)

Assigner

canonical

References

4 references

URL	Tags
https://ubuntu.com/security/notices/USN-6125-1	vendor-advisory
https://github.com/snapcore/snapd/pull/12849	issue-tracking
https://marc.info/?l=oss-security&m=167879021709955&w=2	mailing-list
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CV…	issue-tracking

Impacted products

1 product

Vendor	Product	Version
Canonical Ltd.	snapd	Unaffected: 2.59.5

Date Public

2023-05-25 00:00

Show details on NVD website

JSON

To clipboard

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CVE-2021-4120 (GCVE-0-2021-4120)

Vulnerability from cvelistv5 – Published: 2022-02-17 22:15 – Updated: 2024-08-03 17:16

Title

snapd could be made to bypass intended access restrictions through snap content interfaces and layout paths

Summary

snapd 2.54.2 fails to perform sufficient validation of snap content interface and layout paths, resulting in the ability for snaps to inject arbitrary AppArmor policy rules via malformed content interface and layout declarations and hence escape strict snap confinement. Fixed in snapd versions 2.54.3+18.04, 2.54.3+20.04 and 2.54.3+21.10.1

Severity

8.2 (High)


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

CWE

CWE-20 - Improper Input Validation

Assigner

canonical

References

5 references

URL	Tags
https://ubuntu.com/security/notices/USN-5292-1	x_refsource_MISC
https://bugs.launchpad.net/snapd/+bug/1949368	x_refsource_MISC
http://www.openwall.com/lists/oss-security/2022/02/18/2	mailing-listx_refsource_MLIST
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisoryx_refsource_FEDORA
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisoryx_refsource_FEDORA

Impacted products

1 product

Vendor	Product	Version
Canonical Ltd.	snapd	Affected: unspecified , ≤ 2.54.2 (custom)

Credits

Ian Johnson

Show details on NVD website

JSON

To clipboard

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CVE-2021-44730 (GCVE-0-2021-44730)

Vulnerability from cvelistv5 – Published: 2022-02-17 22:15 – Updated: 2024-08-04 04:32

Title

snapd could be made to escalate privileges and run programs as administrator

Summary

snapd 2.54.2 did not properly validate the location of the snap-confine binary. A local attacker who can hardlink this binary to another location to cause snap-confine to execute other arbitrary binaries and hence gain privilege escalation. Fixed in snapd versions 2.54.3+18.04, 2.54.3+20.04 and 2.54.3+21.10.1

Severity

7.8 (High)


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

CWE

CWE-59 - Improper Link Resolution Before File Access ('Link Following')

Assigner

canonical

References

6 references

URL	Tags
https://ubuntu.com/security/notices/USN-5292-1	x_refsource_MISC
http://www.openwall.com/lists/oss-security/2022/02/18/2	mailing-listx_refsource_MLIST
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisoryx_refsource_FEDORA
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisoryx_refsource_FEDORA
https://www.debian.org/security/2022/dsa-5080	vendor-advisoryx_refsource_DEBIAN
http://www.openwall.com/lists/oss-security/2022/02/23/1	mailing-listx_refsource_MLIST

Impacted products

1 product

Vendor	Product	Version
Canonical Ltd.	snapd	Affected: unspecified , ≤ 2.54.2 (custom)

Credits

Qualys Research Team

Show details on NVD website

JSON

To clipboard

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CVE-2021-3155 (GCVE-0-2021-3155)

Vulnerability from cvelistv5 – Published: 2022-02-17 22:15 – Updated: 2024-08-03 16:45

Title

snapd created ~/snap with too-wide permissions

Summary

snapd 2.54.2 and earlier created ~/snap directories in user home directories without specifying owner-only permissions. This could allow a local attacker to read information that should have been private. Fixed in snapd versions 2.54.3+18.04, 2.54.3+20.04 and 2.54.3+21.10.1

Severity

3.8 (Low)


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

CWE

CWE-276 - Incorrect Default Permissions

Assigner

canonical

References

3 references

URL	Tags
https://ubuntu.com/security/notices/USN-5292-1	x_refsource_MISC
https://github.com/snapcore/snapd/commit/6bcaeecc…	x_refsource_MISC
https://github.com/snapcore/snapd/commit/7d2a9666…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
Canonical Ltd.	snapd	Affected: unspecified , ≤ 2.54.2 (custom)

Credits

James Troup

Show details on NVD website

JSON

To clipboard

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CVE-2021-44731 (GCVE-0-2021-44731)

Vulnerability from cvelistv5 – Published: 2022-02-17 00:00 – Updated: 2024-08-04 04:32

Title

snapd could be made to escalate privileges and run programs as administrator

Summary

A race condition existed in the snapd 2.54.2 snap-confine binary when preparing a private mount namespace for a snap. This could allow a local attacker to gain root privileges by bind-mounting their own contents inside the snap's private mount namespace and causing snap-confine to execute arbitrary code and hence gain privilege escalation. Fixed in snapd versions 2.54.3+18.04, 2.54.3+20.04 and 2.54.3+21.10.1

Severity

7.8 (High)


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

CWE

CWE-362 - Race Condition (Concurrent Execution using Shared Resource with Improper Synchronization)

Assigner

canonical

References

10 references

URL	Tags
https://ubuntu.com/security/notices/USN-5292-1
http://www.openwall.com/lists/oss-security/2022/02/18/2	mailing-list
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisory
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisory
https://www.debian.org/security/2022/dsa-5080	vendor-advisory
http://www.openwall.com/lists/oss-security/2022/02/23/1	mailing-list
http://www.openwall.com/lists/oss-security/2022/02/23/2	mailing-list
http://www.openwall.com/lists/oss-security/2022/11/30/2	mailing-list
http://seclists.org/fulldisclosure/2022/Dec/4	mailing-list
http://packetstormsecurity.com/files/170176/snap-…

Impacted products

1 product

Vendor	Product	Version
Canonical Ltd.	snapd	Affected: unspecified , ≤ 2.54.2 (custom)

Credits

Qualys Research Team

Show details on NVD website

JSON

To clipboard

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Find a vulnerability

Search criteria

16 vulnerabilities found for snapd by Canonical Ltd.

CVE-2020-27352 (GCVE-0-2020-27352)

CVE-2024-5138 (GCVE-0-2024-5138)

CVE-2022-3328 (GCVE-0-2022-3328)

CVE-2023-1523 (GCVE-0-2023-1523)

CVE-2021-4120 (GCVE-0-2021-4120)

CVE-2021-44731 (GCVE-0-2021-44731)

CVE-2021-44730 (GCVE-0-2021-44730)

CVE-2021-3155 (GCVE-0-2021-3155)

CVE-2020-27352 (GCVE-0-2020-27352)

CVE-2024-5138 (GCVE-0-2024-5138)

CVE-2022-3328 (GCVE-0-2022-3328)

CVE-2023-1523 (GCVE-0-2023-1523)

CVE-2021-4120 (GCVE-0-2021-4120)

CVE-2021-44730 (GCVE-0-2021-44730)

CVE-2021-3155 (GCVE-0-2021-3155)

CVE-2021-44731 (GCVE-0-2021-44731)