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CVE-2021-3531

MEDIUMCVSS 5.3/10EPSS 2.43%

Last modified

CVE-2021-3531 is a medium-severity vulnerability rated 5.3/10 on the CVSS scale. 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. EPSS estimates a 2.43% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1
5.3/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

EPSS Probability
2.43%

82.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
RedhatCeph< 14.2.21
RedhatCeph Storage4.0
FedoraprojectFedora32
FedoraprojectFedora33
FedoraprojectFedora34

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2021-3531?
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.
How severe is CVE-2021-3531?
CVE-2021-3531 has a CVSS score of 5.3/10 (MEDIUM severity). The EPSS model estimates a 2.43% probability of exploitation in the next 30 days.
How do I fix CVE-2021-3531?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-3531?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST