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If doing it makes sense at all, it should happen before the values are used. Signed-off-by: Miloslav Trmač <mitr@redhat.com>
... to prevent panics if the value does not contain a :, or other unexpected values (e.g. a path traversal). Don't bother on paths where we computed the digest ourselves, or it is already trusted for other reasons. Signed-off-by: Miloslav Trmač <mitr@redhat.com>
... to prevent unexpected behavior on invalid values. Signed-off-by: Miloslav Trmač <mitr@redhat.com>
Signed-off-by: Miloslav Trmač <mitr@redhat.com>
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LGTM |
This was referenced May 28, 2024
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Could you help to backport the patch to the branch 5.22 https://github.com/containers/image/tree/release-5.22? Thanks! |
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@Mingli-001 in this upstream repo, over a year later, I don’t think we would be backporting this to those old branches. If you are a Red Hat customer, please use the standard customer support channels; or similarly for any other vendor. |
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Digest values used throughout this library were not always validated. That allowed attackers to trigger, when pulling untrusted images, unexpected authenticated registry accesses on behalf of a victim user.
In less common uses of this library (using other transports or not using the
containers/image/v5/copy.ImageAPI), an attacker could also trigger local path traversals or crashes.