Vulnerability identifier: #VU40089

Vulnerability risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2016-3110

CWE-ID: CWE-20

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Fedora
Operating systems & Components / Operating system

Vendor: Fedoraproject

Description

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

mod_cluster, as used in Red Hat JBoss Web Server 2.1, allows remote attackers to cause a denial of service (Apache http server crash) via an MCMP message containing a series of = (equals) characters after a legitimate element.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Fedora: 28 - 30

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External links
http://rhn.redhat.com/errata/RHSA-2016-1648.html
http://rhn.redhat.com/errata/RHSA-2016-1649.html
http://rhn.redhat.com/errata/RHSA-2016-1650.html
http://rhn.redhat.com/errata/RHSA-2016-2054.html
http://rhn.redhat.com/errata/RHSA-2016-2055.html
http://rhn.redhat.com/errata/RHSA-2016-2056.html
http://www.securityfocus.com/bid/92584
http://bugzilla.redhat.com/show_bug.cgi?id=1326320
http://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/6JMA2YLPK6SEUVF5Q3QEANHYEPRZA2RI/
http://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/CX5QNNIVAUB2VVDV6TR3YMFTL6VRKOBO/
http://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/HE5YZTBZRXCMQFT5LDLZG2HAYBKMYQLL/

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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.