Medium severity · published May 18, 2021
CVE-2021-3531
A flaw was found in the Red Hat Ceph Storage RGW in versions before 14.2.21
5.3
CVSS
2.2%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
Low
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)2.2% · higher than 82% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
CE
Ceph · Redhat
before 14.2.21 · source: NVD
CS
Ceph Storage · Redhat
4.0 · source: NVD
FE
Fedora · Fedoraproject
32; 33; 34 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-3531
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-3531
Mailing List
http://www.openwall.com/lists/oss-security/2021/05/14/5
Mailing List
http://www.openwall.com/lists/oss-security/2021/05/17/7
Issue Tracking
https://bugzilla.redhat.com/show_bug.cgi?id=1955326
lists.debian.org
https://lists.debian.org/debian-lts-announce/2023/10/msg00034.html
lists.fedoraproject.org
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FX5ZHI5L7FOHXOSEV3TYBAL66DMLJ7V5/
lists.fedoraproject.org
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LPCJN2YDZCBMF4FOJXSTAADKFGEQEO7O/
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