CVE-2021-3531 · cross-distro fix matrix

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.

Affects 4 Linux releases across 4 (distro × package) combinations.

Fix per ecosystem

Each block below is a distro release where CVE-2021-3531 has a known fix. Run the listed command on that distro to remediate.

Debian bullseye

Source: Debian Security Tracker

ceph→ fixed in14.2.21-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y ceph
```

Debian bookworm

Source: Debian Security Tracker

ceph→ fixed in14.2.21-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y ceph
```

Debian trixie

Source: Debian Security Tracker

ceph→ fixed in14.2.21-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y ceph
```

Alpine v3.18

Source: Alpine secdb

ceph16→ fixed in16.2.4-r0
```
apk update && apk add --upgrade ceph16
```

Are YOU affected by CVE-2021-3531?

5-second check on your actual server. Reads /etc/os-release, uname -r, and the distro's package manager; matches against this same cross-source index live.

curl https://mindsparkstack.com/scan.sh | bash

Form-based quickscan View on NVD

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