VOOZH about

URL: https://nvd.nist.gov/vuln/detail/CVE-2021-20291

⇱ NVD - CVE-2021-20291

  1. Vulnerabilities

CVE-2021-20291 Detail

Modified After Enrichment

This CVE record has been updated after NVD enrichment efforts were completed. Enrichment data supplied by the NVD may require amendment due to these changes.

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).


Metrics

 
NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

By selecting these links, you will be leaving NIST webspace. We have provided these links to other web sites because they may have information that would be of interest to you. No inferences should be drawn on account of other sites being referenced, or not, from this page. There may be other web sites that are more appropriate for your purpose. NIST does not necessarily endorse the views expressed, or concur with the facts presented on these sites. Further, NIST does not endorse any commercial products that may be mentioned on these sites. Please address comments about this page to [email protected].

URL Source(s) Tag(s)
https://bugzilla.redhat.com/show_bug.cgi?id=1939485 CVE, Inc., Red Hat Issue Tracking  Patch  Third Party Advisory 
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/R5D7XL7FL24TWFMGQ3K2S72EOUSLZMKL/ CVE, Inc., Red Hat
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SPYOHNG2Q7DCAQZMGYLMENLKALGDLG3X/ CVE, Inc., Red Hat
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WX24EITRXVHDM5M223BVTJA2ODF2FSHI/ CVE, Inc., Red Hat
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZNMB7O2UIXE34PGSCSOULGHPX5LIJBMM/ CVE, Inc., Red Hat
https://unit42.paloaltonetworks.com/cve-2021-20291/ CVE, Inc., Red Hat Exploit  Third Party Advisory 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-667 Improper Locking Red Hat, Inc.  

Known Affected Software Configurations Switch to CPE 2.2

CPEs loading, please wait.

Denotes Vulnerable Software
Are we missing a CPE here? Please let us know.

Change History

11 change records found show changes

CVE Modified by Red Hat, Inc. 6/16/2026 11:33:37 PM

Action Type Old Value New Value
Added Affected 
[{"vendor":"n/a","product":"containers/storage","versions":[{"version":"containers/storage 1.28.1","status":"affected"}]}]

CVE Modified by CVE 11/21/2024 12:46:17 AM

Action Type Old Value New Value
Added Reference 
https://bugzilla.redhat.com/show_bug.cgi?id=1939485
Added Reference 
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/R5D7XL7FL24TWFMGQ3K2S72EOUSLZMKL/
Added Reference 
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SPYOHNG2Q7DCAQZMGYLMENLKALGDLG3X/
Added Reference 
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WX24EITRXVHDM5M223BVTJA2ODF2FSHI/
Added Reference 
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZNMB7O2UIXE34PGSCSOULGHPX5LIJBMM/
Added Reference 
https://unit42.paloaltonetworks.com/cve-2021-20291/

CVE Modified by Red Hat, Inc. 5/14/2024 4:03:32 AM

Action Type Old Value New Value

CVE Modified by Red Hat, Inc. 11/06/2023 10:29:04 PM

Action Type Old Value New Value
Added Reference 
Red Hat, Inc. https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/R5D7XL7FL24TWFMGQ3K2S72EOUSLZMKL/ [No types assigned]
Added Reference 
Red Hat, Inc. https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SPYOHNG2Q7DCAQZMGYLMENLKALGDLG3X/ [No types assigned]
Added Reference 
Red Hat, Inc. https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WX24EITRXVHDM5M223BVTJA2ODF2FSHI/ [No types assigned]
Added Reference 
Red Hat, Inc. https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZNMB7O2UIXE34PGSCSOULGHPX5LIJBMM/ [No types assigned]
Removed Reference 
Red Hat, Inc. https://lists.fedoraproject.org/archives/list/[email protected]/message/R5D7XL7FL24TWFMGQ3K2S72EOUSLZMKL/
Removed Reference 
Red Hat, Inc. https://lists.fedoraproject.org/archives/list/[email protected]/message/SPYOHNG2Q7DCAQZMGYLMENLKALGDLG3X/
Removed Reference 
Red Hat, Inc. https://lists.fedoraproject.org/archives/list/[email protected]/message/WX24EITRXVHDM5M223BVTJA2ODF2FSHI/
Removed Reference 
Red Hat, Inc. https://lists.fedoraproject.org/archives/list/[email protected]/message/ZNMB7O2UIXE34PGSCSOULGHPX5LIJBMM/

Modified Analysis by NIST 6/02/2021 9:13:55 AM

Action Type Old Value New Value
Added CPE Configuration 
OR
 *cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*
 *cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*
Changed Reference Type 
https://lists.fedoraproject.org/archives/list/[email protected]/message/R5D7XL7FL24TWFMGQ3K2S72EOUSLZMKL/ No Types Assigned


 
https://lists.fedoraproject.org/archives/list/[email protected]/message/R5D7XL7FL24TWFMGQ3K2S72EOUSLZMKL/ Mailing List, Third Party Advisory
Changed Reference Type 
https://lists.fedoraproject.org/archives/list/[email protected]/message/SPYOHNG2Q7DCAQZMGYLMENLKALGDLG3X/ No Types Assigned


 
https://lists.fedoraproject.org/archives/list/[email protected]/message/SPYOHNG2Q7DCAQZMGYLMENLKALGDLG3X/ Mailing List, Third Party Advisory
Changed Reference Type 
https://lists.fedoraproject.org/archives/list/[email protected]/message/WX24EITRXVHDM5M223BVTJA2ODF2FSHI/ No Types Assigned


 
https://lists.fedoraproject.org/archives/list/[email protected]/message/WX24EITRXVHDM5M223BVTJA2ODF2FSHI/ Mailing List, Third Party Advisory
Changed Reference Type 
https://lists.fedoraproject.org/archives/list/[email protected]/message/ZNMB7O2UIXE34PGSCSOULGHPX5LIJBMM/ No Types Assigned


 
https://lists.fedoraproject.org/archives/list/[email protected]/message/ZNMB7O2UIXE34PGSCSOULGHPX5LIJBMM/ Mailing List, Third Party Advisory
Changed Reference Type 
https://unit42.paloaltonetworks.com/cve-2021-20291/ No Types Assigned


 
https://unit42.paloaltonetworks.com/cve-2021-20291/ Exploit, Third Party Advisory

CVE Modified by Red Hat, Inc. 5/24/2021 10:15:07 AM

Action Type Old Value New Value
Added Reference 
https://unit42.paloaltonetworks.com/cve-2021-20291/ [No Types Assigned]

CVE Modified by Red Hat, Inc. 5/06/2021 10:15:07 AM

Action Type Old Value New Value
Added Reference 
https://lists.fedoraproject.org/archives/list/[email protected]/message/SPYOHNG2Q7DCAQZMGYLMENLKALGDLG3X/ [No Types Assigned]

CVE Modified by Red Hat, Inc. 5/03/2021 11:15:06 PM

Action Type Old Value New Value
Added Reference 
https://lists.fedoraproject.org/archives/list/[email protected]/message/WX24EITRXVHDM5M223BVTJA2ODF2FSHI/ [No Types Assigned]

CVE Modified by Red Hat, Inc. 4/24/2021 7:15:08 PM

Action Type Old Value New Value
Added Reference 
https://lists.fedoraproject.org/archives/list/[email protected]/message/ZNMB7O2UIXE34PGSCSOULGHPX5LIJBMM/ [No Types Assigned]

CVE Modified by Red Hat, Inc. 4/24/2021 4:15:07 PM

Action Type Old Value New Value
Added Reference 
https://lists.fedoraproject.org/archives/list/[email protected]/message/R5D7XL7FL24TWFMGQ3K2S72EOUSLZMKL/ [No Types Assigned]

Initial Analysis by NIST 4/06/2021 1:06:32 PM

Action Type Old Value New Value
Added CVSS V3.1 
NIST AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Added CVSS V2 
NIST (AV:N/AC:M/Au:N/C:N/I:N/A:C)
Added CPE Configuration 
OR
 *cpe:2.3:a:redhat:openshift_container_platform:4.0:*:*:*:*:*:*:*
 *cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*
Added CPE Configuration 
OR
 *cpe:2.3:a:storage_project:storage:*:*:*:*:*:*:*:* versions up to (excluding) 1.28.1
Changed Reference Type 
https://bugzilla.redhat.com/show_bug.cgi?id=1939485 No Types Assigned


 
https://bugzilla.redhat.com/show_bug.cgi?id=1939485 Issue Tracking, Patch, Third Party Advisory
Added CVSS V2 Metadata 
Victim must voluntarily interact with attack mechanism

Quick Info

CVE Dictionary Entry:
CVE-2021-20291
NVD Published Date:
04/01/2021
NVD Last Modified:
06/16/2026
Source:
Red Hat, Inc.