#VU11220 Denial of service in Ceph - CVE-2018-7262

Vulnerability identifier: #VU11220

Vulnerability risk: Low

CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2018-7262

CWE-ID: CWE-113

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Ceph
Server applications / Other server solutions

Vendor: Red Hat Inc.

Description
The vulnerability allows a remote unauthenticated attacker to perform HTTP response splitting attack.

The weakness exists in the rgw_civetweb.cc RGWCivetWeb::init_envfunction due to improper handling of HTTP headers. A remote attacker can send a specially crafted HTTP header and cause the service to crash.

Mitigation
Update to version 12.2.3.

Vulnerable software versions

Ceph: 10.2.7 - 13.0.1

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External links
https://access.redhat.com/errata/RHSA-2018:0548
https://access.redhat.com/errata/RHSA-2018:0546

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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.