Improper Locking Affecting containernetworking-plugins package, versions <0:1.0.0-1.module+el8.5.0+12582+56d94c81
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Test your applications- Snyk ID SNYK-CENTOS8-CONTAINERNETWORKINGPLUGINS-2129285
- published 26 Jul 2021
- disclosed 1 Apr 2021
Introduced: 1 Apr 2021
CVE-2021-20291 Open this link in a new tabHow to fix?
Upgrade Centos:8 containernetworking-plugins to version 0:1.0.0-1.module+el8.5.0+12582+56d94c81 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream containernetworking-plugins package and not the containernetworking-plugins package as distributed by Centos.
See How to fix? for Centos:8 relevant fixed versions and status.
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).
References
- https://access.redhat.com/security/cve/CVE-2021-20291
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/R5D7XL7FL24TWFMGQ3K2S72EOUSLZMKL/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/SPYOHNG2Q7DCAQZMGYLMENLKALGDLG3X/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/WX24EITRXVHDM5M223BVTJA2ODF2FSHI/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZNMB7O2UIXE34PGSCSOULGHPX5LIJBMM/
- https://bugzilla.redhat.com/show_bug.cgi?id=1939485
- https://unit42.paloaltonetworks.com/cve-2021-20291/
- https://access.redhat.com/errata/RHBA-2022:0348
- https://access.redhat.com/errata/RHSA-2021:4154
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/R5D7XL7FL24TWFMGQ3K2S72EOUSLZMKL/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SPYOHNG2Q7DCAQZMGYLMENLKALGDLG3X/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WX24EITRXVHDM5M223BVTJA2ODF2FSHI/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZNMB7O2UIXE34PGSCSOULGHPX5LIJBMM/