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osvGoogleOSV:GHSA-259W-8HF6-59C2
HistoryFeb 16, 2023 - 2:12 p.m.

OCI image importer memory exhaustion in github.com/containerd/containerd

2023-02-1614:12:36
Google
osv.dev
28
denial of service
patch
trusted images
security disclosure
cncf
fuzzing
security issue
vulnerability
email
github

CVSS3

6.2

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

EPSS

0.001

Percentile

30.2%

Impact

When importing an OCI image, there was no limit on the number of bytes read for certain files. A maliciously crafted image with a large file where a limit was not applied could cause a denial of service.

Patches

This bug has been fixed in containerd 1.6.18 and 1.5.18. Users should update to these versions to resolve the issue.

Workarounds

Ensure that only trusted images are used and that only trusted users have permissions to import images.

Credits

The containerd project would like to thank David Korczynski and Adam Korczynski of ADA Logics for responsibly disclosing this issue in accordance with the containerd security policy during a security fuzzing audit sponsored by CNCF.

For more information

If you have any questions or comments about this advisory:

To report a security issue in containerd:

CVSS3

6.2

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

EPSS

0.001

Percentile

30.2%