A Ceph security update has been released for Ubuntu Linux 18.04 LTS and 16.04 LTS.

USN-4528-1: Ceph vulnerabilities

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Ubuntu Security Notice USN-4528-1
September 22, 2020

ceph vulnerabilities
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A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 18.04 LTS
- Ubuntu 16.04 LTS

Summary:

Several security issues were fixed in Ceph.

Software Description:
- ceph: distributed storage and file system

Details:

Adam Mohammed discovered that Ceph incorrectly handled certain CORS
ExposeHeader tags. A remote attacker could possibly use this issue to
preform an HTTP header injection attack. (CVE-2020-10753)

Lei Cao discovered that Ceph incorrectly handled certain POST requests with
invalid tagging XML. A remote attacker could possibly use this issue to
cause Ceph to crash, leading to a denial of service. This issue only
affected Ubuntu 18.04 LTS. (CVE-2020-12059)

Robin H. Johnson discovered that Ceph incorrectly handled certain S3
requests. A remote attacker could possibly use this issue to perform a
XSS attack. (CVE-2020-1760)

Update instructions:

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 18.04 LTS:
ceph 12.2.13-0ubuntu0.18.04.4
ceph-base 12.2.13-0ubuntu0.18.04.4
ceph-common 12.2.13-0ubuntu0.18.04.4

Ubuntu 16.04 LTS:
ceph 10.2.11-0ubuntu0.16.04.3
ceph-common 10.2.11-0ubuntu0.16.04.3

In general, a standard system update will make all the necessary changes.

References:
  https://usn.ubuntu.com/4528-1
CVE-2020-10753, CVE-2020-12059, CVE-2020-1760

Package Information:
  https://launchpad.net/ubuntu/+source/ceph/12.2.13-0ubuntu0.18.04.4
  https://launchpad.net/ubuntu/+source/ceph/10.2.11-0ubuntu0.16.04.3