Ubuntu Security Notice USN-4706-1
January 28, 2021
ceph vulnerabilities
=========================================================================
A security issue affects these releases of Ubuntu and its
derivatives:
- Ubuntu 20.10
- Ubuntu 20.04 LTS
Summary:
Several security issues were fixed in Ceph.
Software Description:
- ceph: distributed storage and file system
Details:
Olle Segerdahl found that ceph-mon and ceph-mgr daemons did not
properly
restrict access, resulting in gaining access to unauthorized
resources. An
authenticated user could use this vulnerability to modify the
configuration and
possibly conduct further attacks. (CVE-2020-10736)
Adam Mohammed found that Ceph Object Gateway was vulnerable to
HTTP header
injection via a CORS ExposeHeader tag. An attacker could use this
to gain access
or cause a crash. (CVE-2020-10753)
Ilya Dryomov found that Cephx authentication did not verify Ceph
clients
correctly and was then vulnerable to replay attacks in Nautilus. An
attacker
could use the Ceph cluster network to authenticate via a packet
sniffer and
perform actions. This issue is a reintroduction of
CVE-2018-1128.
(CVE-2020-25660)
Update instructions:
The problem can be corrected by updating your system to the
following
package versions:
Ubuntu 20.10:
ceph 15.2.7-0ubuntu0.20.10.3
ceph-base 15.2.7-0ubuntu0.20.10.3
ceph-common 15.2.7-0ubuntu0.20.10.3
Ubuntu 20.04 LTS:
ceph 15.2.7-0ubuntu0.20.04.2
ceph-base 15.2.7-0ubuntu0.20.04.2
ceph-common 15.2.7-0ubuntu0.20.04.2
In general, a standard system update will make all the necessary changes.
References:
https://usn.ubuntu.com/4706-1
CVE-2020-10736, CVE-2020-10753, CVE-2020-25660
Package Information:
https://launchpad.net/ubuntu/+source/ceph/15.2.7-0ubuntu0.20.10.3
https://launchpad.net/ubuntu/+source/ceph/15.2.7-0ubuntu0.20.04.2
Read more https://packetstormsecurity.com/files/161180/USN-4706-1.txt