Denial of service in Red Hat Ceph

1) Resource management error

EUVDB-ID: #VU26150

Risk: Medium

CVSSv3.1: 7.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-1700

CWE-ID: CWE-399 - Resource Management Errors

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to an error while processing unexpected disconnects within the Ceph RGW Beast front-end (/rgw/rgw_asio_frontend.cc). A remote attacker can perform a denial of service (DoS) attack by triggering creation of numerous CLOSE_WAIT sockets and exhausting all available system resources.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Ceph: 15.0.0 - 15.1.0

External links

http://lists.opensuse.org/opensuse-security-announce/2020-02/msg00009.html
http://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-1700

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.