FreeBSD TCP Reassembly CVE-2018-6922 Denial Of Service Vulnerability

BID:105058

CVE-2018-6922 |

Info

FreeBSD TCP Reassembly CVE-2018-6922 Denial Of Service Vulnerability

Bugtraq ID: 105058
Class: Failure to Handle Exceptional Conditions
CVE: CVE-2018-6922
Remote: Yes
Local: No
Published: Aug 06 2018 12:00AM
Updated: Aug 06 2018 12:00AM
Credit: Juha-Matti Tilli
Vulnerable: FreeBSD Freebsd 11.2-PRERELEASE
FreeBSD Freebsd 11.2
FreeBSD Freebsd 11.1-RELEASE-p9
FreeBSD Freebsd 11.1-RELEASE-p7
FreeBSD Freebsd 11.1-RELEASE-p4
FreeBSD Freebsd 11.1-RELEASE-p10
FreeBSD Freebsd 11.1-RC2-p1
FreeBSD Freebsd 11.1-RC1-p1
FreeBSD Freebsd 11.1-PRERELEASE
FreeBSD Freebsd 11.1-BETA3-p1
FreeBSD Freebsd 11.1
FreeBSD Freebsd 11.0-STABLE
FreeBSD Freebsd 11.0-RELEASE-p6
FreeBSD Freebsd 11.0-RELEASE-p4
FreeBSD Freebsd 11.0-RELEASE-p15
FreeBSD Freebsd 11.0-RELEASE-p11
FreeBSD Freebsd 11.0-RELEASE-p10
FreeBSD Freebsd 10.4-RELEASE-p9
FreeBSD Freebsd 10.4-RELEASE-p8
FreeBSD Freebsd 10.4-RELEASE-p6
FreeBSD Freebsd 10.4-RELEASE-p3
FreeBSD Freebsd 10.4
FreeBSD Freebsd 10.3-STABLE
FreeBSD Freebsd 10.3-RELEASE-p5
FreeBSD Freebsd 10.3-RELEASE-p4
FreeBSD Freebsd 10.3-RELEASE-p3
FreeBSD Freebsd 10.3-RELEASE-p29
FreeBSD Freebsd 10.3-RELEASE-p27
FreeBSD Freebsd 10.3-RELEASE-p24
FreeBSD Freebsd 10.3-RELEASE-p20
FreeBSD Freebsd 10.3-RELEASE-p2
FreeBSD Freebsd 10.3-RELEASE-p19
FreeBSD Freebsd 10.3-RELEASE-p15
FreeBSD Freebsd 10.3-RELEASE-p13
FreeBSD Freebsd 10.3-RELEASE-p1
FreeBSD Freebsd 10.3-RC2
FreeBSD Freebsd 10.3
FreeBSD Freebsd 10.2-STABLE
FreeBSD Freebsd 10.2-RELENG
FreeBSD Freebsd 10.2-RELEASE-p9
FreeBSD Freebsd 10.2-RELEASE-p8
FreeBSD Freebsd 10.2-RELEASE-p6
FreeBSD Freebsd 10.2-RELEASE-p28
FreeBSD Freebsd 10.2-RELEASE-p26
FreeBSD Freebsd 10.2-RELEASE-p19
FreeBSD Freebsd 10.2-RELEASE-p18
FreeBSD Freebsd 10.2-RELEASE-p17
FreeBSD Freebsd 10.2-RELEASE-p16
FreeBSD Freebsd 10.2-RELEASE-p14
FreeBSD Freebsd 10.2-RELEASE-p13
FreeBSD Freebsd 10.2-RELEASE-p12
FreeBSD Freebsd 10.2-RELEASE-p11
FreeBSD Freebsd 10.2-RELEASE-p10
FreeBSD Freebsd 10.2-RC2-p1
FreeBSD Freebsd 10.2-RC1-p2
FreeBSD Freebsd 10.2-RC1-p1
FreeBSD Freebsd 10.2-PRERELEASE
FreeBSD Freebsd 10.2-BETA3
FreeBSD Freebsd 10.2-BETA2-p3
FreeBSD Freebsd 10.2-BETA2-p2
FreeBSD Freebsd 10.2
FreeBSD FreeBSD 10.1-STABLE
FreeBSD Freebsd 10.1-RELENG
FreeBSD Freebsd 10.1-RELEASE-p9
FreeBSD Freebsd 10.1-RELEASE-p6
FreeBSD Freebsd 10.1-RELEASE-p5
FreeBSD Freebsd 10.1-RELEASE-p45
FreeBSD Freebsd 10.1-RELEASE-p43
FreeBSD Freebsd 10.1-RELEASE-p36
FreeBSD Freebsd 10.1-RELEASE-p35
FreeBSD Freebsd 10.1-RELEASE-p34
FreeBSD Freebsd 10.1-RELEASE-p33
FreeBSD Freebsd 10.1-RELEASE-p31
FreeBSD Freebsd 10.1-RELEASE-p30
FreeBSD Freebsd 10.1-RELEASE-p29
FreeBSD Freebsd 10.1-RELEASE-p28
FreeBSD Freebsd 10.1-RELEASE-p27
FreeBSD Freebsd 10.1-RELEASE-p26
FreeBSD Freebsd 10.1-RELEASE-p25
FreeBSD Freebsd 10.1-RELEASE-p23
FreeBSD Freebsd 10.1-RELEASE-p19
FreeBSD Freebsd 10.1-RELEASE-p17
FreeBSD Freebsd 10.1-RELEASE-p16
FreeBSD FreeBSD 10.1-RELEASE-p1
FreeBSD Freebsd 10.1-RELEASE
FreeBSD FreeBSD 10.1-RC4-p1
FreeBSD FreeBSD 10.1-RC3-p1
FreeBSD FreeBSD 10.1-RC2-p3
FreeBSD FreeBSD 10.1-RC2-p1
FreeBSD FreeBSD 10.1-RC1-p1
FreeBSD FreeBSD 10.1-PRERELEASE
FreeBSD FreeBSD 10.1-BETA3-p1
FreeBSD FreeBSD 10.1-BETA1-p1
FreeBSD FreeBSD 10.1
Not Vulnerable: FreeBSD Freebsd 11.2-RELEASE-p1
FreeBSD Freebsd 11.1-STABLE
FreeBSD Freebsd 11.1-RELEASE-p12
FreeBSD Freebsd 10.4-STABLE
FreeBSD Freebsd 10.4-RELEASE-p10

Discussion

FreeBSD TCP Reassembly CVE-2018-6922 Denial Of Service Vulnerability

FreeBSD is prone to denial-of-service vulnerability.

Attackers can exploit this issue to resource exhaustion and crash the affected application, denying service to legitimate users.

Exploit / POC

FreeBSD TCP Reassembly CVE-2018-6922 Denial Of Service Vulnerability

Currently, we are not aware of any working exploits. If you feel we are in error or if you are aware of more recent information, please mail us at: [email protected].

Solution / Fix

FreeBSD TCP Reassembly CVE-2018-6922 Denial Of Service Vulnerability

Solution:
Updates are available. Please see the references or vendor advisory for more information.

References

FreeBSD TCP Reassembly CVE-2018-6922 Denial Of Service Vulnerability

References:
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