SB2019042801 - OpenSUSE Linux update for ceph
Published: April 28, 2019
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 5 secuirty vulnerabilities.
1) Security restrictions bypass (CVE-ID: CVE-2018-10861)
The vulnerability allows an adjacent authenticated attacker to bypass security restrictions on the target system.
The vulnerability exists in ceph branches master, mimic, luminous and jewel due to improper handling of user-supplied requests by ceph mon. An adjacent attacker with read access to ceph can delete, create ceph storage pools and corrupt snapshot images.
2) Security restrictions bypass (CVE-ID: CVE-2018-1128)
The vulnerability allows an adjacent attacker to conduct replay attack on the target system.
The vulnerability exists in ceph branches master, mimic, luminous and jewel due to cephx authentication protocol did not verify ceph clients correctly. An adjacent attacker with access to ceph cluster network who is able to sniff packets on network can authenticate with ceph service, perform actions allowed by ceph service, conduct replay attack and bypass security restrictions.
3) Security restrictions bypass (CVE-ID: CVE-2018-1129)
The vulnerability allows an adjacent attacker to bypass security restrictions on the target system.
The vulnerability exists in ceph branches master, mimic, luminous and jewel due to improper handling of signature calculation by cephx authentication protocol. An adjacent attacker with access to ceph cluster network who is able to alter the message payload can bypass signature checks done by cephx protocol to conduct further attacks.
4) Information disclosure (CVE-ID: CVE-2018-14662)
The vulnerability allows a remote authenticated attacker to obtain potentially sensitive information.
The vulnerability exists due to information exposure. A remote attacker read only permissions can steal dm-crypt encryption keys used in ceph disk encryption.
5) Memory corruption (CVE-ID: CVE-2018-16846)
The vulnerability allows a remote authenticated attacker to perform a denial of service (DoS) attack.
The vulnerability exists in the RADOS Gateway (RGW) code base due to boundary error in the ListBucket max-keys function during bucket listing operations. A remote attacker with Ceph RGW user permissions can trigger memory corruption and perform a denial of service attack against object maps (OMAPs) holding bucket indexes.
Remediation
Install update from vendor's website.