CVE-2021-20291
Description
A deadlock vulnerability was found in 'github.com/containers/storage' in versions before 1.28.1. When a container image is processed, each layer is unpacked using `tar`. If one of those layers is not a valid `tar` archive this causes an error leading to an unexpected situation where the code indefinitely waits for the tar unpacked stream, which never finishes. An attacker could use this vulnerability to craft a malicious image, which when downloaded and stored by an application using containers/storage, would then cause a deadlock leading to a Denial of Service (DoS).
How to fix
- storage_project storage1.28.1 or later
- github.com/containers/storage1.28.1 or later
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/R5D7XL7FL24TWFMGQ3K2S72EOUSLZMKL/
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZNMB7O2UIXE34PGSCSOULGHPX5LIJBMM/
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WX24EITRXVHDM5M223BVTJA2ODF2FSHI/
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SPYOHNG2Q7DCAQZMGYLMENLKALGDLG3X/
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| storage_project storage | v < 1.28.1 | 1.28.1 |
| redhat openshift_container_platform | 4.0 | — |
| redhat enterprise_linux | 8.0 | — |
| fedoraproject fedora | 33, 34 | — |
| github.com/containers/storageGo | v < 1.28.1 | 1.28.1 |
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Attack Surface Management
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