CVE-2021-20291
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2021-20291
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2021-20291.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2021-20291
- Aliases
- Downstream
- Related
- Published
- 2021-04-01T18:15:12Z
- Modified
- 2025-09-19T11:04:04.650781Z
- Severity
-
- 6.5 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H CVSS Calculator
- Summary
- [none]
- Details
-
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 validtararchive 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://bugzilla.redhat.com/show_bug.cgi?id=1939485
- https://unit42.paloaltonetworks.com/cve-2021-20291/
- 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/
Affected packages
Git / github.com/containers/storage
Affected ranges
- Type
- GIT
- Repo
- https://github.com/containers/storage
- Events
-
Introduced0 Unknown introduced commit / All previous commits are affectedFixed
Affected versions
V1.*
V1.2
v0.*
v0.21.1
Other
v1
v1.*
v1.1
v1.10
v1.11
v1.12.0
v1.12.1
v1.12.10
v1.12.11
v1.12.12
v1.12.13
v1.12.14
v1.12.15
v1.12.2
v1.12.3
v1.12.4
v1.12.5
v1.12.6
v1.12.7
v1.12.8
v1.12.9
v1.13.0
v1.13.1
v1.13.2
v1.13.3
v1.13.4
v1.13.5
v1.14.0
v1.15.0
v1.15.1
v1.15.2
v1.15.3
v1.15.4
v1.15.5
v1.15.6
v1.15.7
v1.15.8
v1.16.0
v1.16.1
v1.16.2
v1.16.3
v1.16.4
v1.16.5
v1.16.6
v1.17.0
v1.18.0
v1.18.1
v1.18.2
v1.19.0
v1.19.1
v1.19.2
v1.2
v1.20.1
v1.20.2
v1.21.0
v1.21.1
v1.21.2
v1.22.0
v1.23.0
v1.23.1
v1.23.2
v1.23.3
v1.23.4
v1.23.5
v1.23.6
v1.23.7
v1.23.8
v1.23.9
v1.24.0
v1.24.1
v1.24.2
v1.24.3
v1.24.5
v1.25.0
v1.26.0
v1.27.0
v1.28.0
v1.3
v1.4
v1.5
v1.6
v1.7
v1.8
v1.9