CVE-2021-3531: Input Validation
First published: Thu Apr 29 2021(Updated: )
A flaw was found in the Red Hat Ceph Storage RGW in versions before 14.2.21. When processing a GET Request for a swift URL that ends with two slashes it can cause the rgw to crash, resulting in a denial of service. The greatest threat to the system is of availability.
Credit: secalert@redhat.com secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| redhat/ceph | <14.2.21 | 14.2.21 |
| Redhat Ceph | <14.2.21 | |
| Redhat Ceph Storage | =4.0 | |
| Fedoraproject Fedora | =32 | |
| Fedoraproject Fedora | =33 | |
| Fedoraproject Fedora | =34 |
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Reference Links
- http://www.openwall.com/lists/oss-security/2021/05/14/5
- http://www.openwall.com/lists/oss-security/2021/05/17/7
- https://bugzilla.redhat.com/show_bug.cgi?id=1955326
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LPCJN2YDZCBMF4FOJXSTAADKFGEQEO7O/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FX5ZHI5L7FOHXOSEV3TYBAL66DMLJ7V5/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZRUNDH2TJRZRWL3DCH2PQ6KROWTPQ7AJ/
- https://lists.debian.org/debian-lts-announce/2023/10/msg00034.html
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/FX5ZHI5L7FOHXOSEV3TYBAL66DMLJ7V5/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/LPCJN2YDZCBMF4FOJXSTAADKFGEQEO7O/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZRUNDH2TJRZRWL3DCH2PQ6KROWTPQ7AJ/
- https://%3crgw-url%3e/swift/v1/AUTH_a1c6e2f79c4b412f9e0335bc6120aeae/foo/
- https://%3crgw-url%3e/swift/v1/AUTH_a1c6e2f79c4b412f9e0335bc6120aeae/foo/?abc
- https://github.com/ceph/ceph/commit/f44a8ae8aa27ecef69528db9aec220f12492810e
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1964589
- https://access.redhat.com/errata/RHSA-2022:1174
Frequently Asked Questions
What is the severity of CVE-2021-3531?
The severity of CVE-2021-3531 is medium with a CVSS score of 5.3.
What is the impact of CVE-2021-3531?
CVE-2021-3531 can cause the Red Hat Ceph Storage RGW to crash, resulting in a denial of service.
Which versions of Red Hat Ceph Storage RGW are affected by CVE-2021-3531?
Versions before 14.2.21 of Red Hat Ceph Storage RGW are affected by CVE-2021-3531.
How can I fix CVE-2021-3531?
To fix CVE-2021-3531, update Red Hat Ceph Storage RGW to version 14.2.21 or later.
Where can I find more information about CVE-2021-3531?
You can find more information about CVE-2021-3531 on the following references: [https://%3crgw-url%3e/swift/v1/AUTH_a1c6e2f79c4b412f9e0335bc6120aeae/foo/](https://%3crgw-url%3e/swift/v1/AUTH_a1c6e2f79c4b412f9e0335bc6120aeae/foo/), [https://%3crgw-url%3e/swift/v1/AUTH_a1c6e2f79c4b412f9e0335bc6120aeae/foo/?abc](https://%3crgw-url%3e/swift/v1/AUTH_a1c6e2f79c4b412f9e0335bc6120aeae/foo/?abc), [https://github.com/ceph/ceph/commit/f44a8ae8aa27ecef69528db9aec220f12492810e](https://github.com/ceph/ceph/commit/f44a8ae8aa27ecef69528db9aec220f12492810e).
- collector/mitre-cve
- agent/author
- agent/type
- agent/last-modified-date
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- agent/softwarecombine
- agent/references
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- alias/CVE-2021-3531
- agent/software-canonical-lookup
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- canonical/redhat ceph storage
- version/redhat ceph storage/4.0
- vendor/fedoraproject
- canonical/fedoraproject fedora
- version/fedoraproject fedora/32
- version/fedoraproject fedora/33
- version/fedoraproject fedora/34