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

ceph vulnerabilities
=========================================================================
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://ubuntu.com/security/notices/USN-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