Vulnerability · Published May 18, 2021 · Assigned by redhat
CVE-2021-3531
Medium 5.3
In plain English
A medium-severity improper input validation in ceph. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 2.2% (higher than 82% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS NVD)5.3Medium
Exploit odds (30 days)2.2%top 17.6% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official 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.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | ceph | 14.2.21-1 | DEBIAN-CVE-2021-3531 |
| Debian:13 | ceph | 14.2.21-1 | DEBIAN-CVE-2021-3531 |
| Debian:14 | ceph | 14.2.21-1 | DEBIAN-CVE-2021-3531 |
Affected products (as reported)
Weakness: CWE-20
References
- [oss-security] 20210514 CVE-2021-3531: Ceph: RGW unauthenticated denial of service mailing-list
- [oss-security] 20210517 Re: CVE-2021-3531: Ceph: RGW unauthenticated denial of service mailing-list
- https://bugzilla.redhat.com/show_bug.cgi?id=1955326
- FEDORA-2021-ec414c5e18 vendor-advisory
- FEDORA-2021-6e540b85b9 vendor-advisory
- FEDORA-2021-1bf13db941 vendor-advisory
- [debian-lts-announce] 20231023 [SECURITY] [DLA 3629-1] ceph security update mailing-list