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OVAL Definitions
>
OVAL Definition Details
Id
oval:com.altx-soft.freebsd:def:367
[Rus]
Version
1
Class
vulnerability
ALTXid
194271
Language
English
Severity
High
Title
FreeBSD -- ipsec crash or denial of service (CVE-2018-6918)
Description
In FreeBSD before 11.1-STABLE, 11.1-RELEASE-p9, 10.4-STABLE, 10.4-RELEASE-p8 and 10.3-RELEASE-p28, the length field of the ipsec option header does not count the size of the option header itself, causing an infinite loop when the length is zero. This issue can allow a remote attacker who is able to send an arbitrary packet to cause the machine to crash.
Family
unix
Platform
FreeBSD
Product
FreeBSD
Reference
FreeBSD: c0c5afef-38db-11e8-8b7f-a4badb2f469b
FreeBSD: c0c5afef-38db-11e8-8b7f-a4badb2f469b
Id:
c0c5afef-38db-11e8-8b7f-a4badb2f469b
CVE: CVE-2018-6918
CVE: CVE-2018-6918
Id:
CVE-2018-6918
Reference:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-6918
Comment
: In FreeBSD before 11.1-STABLE, 11.1-RELEASE-p9, 10.4-STABLE, 10.4-RELEASE-p8 and 10.3-RELEASE-p28, the length field of the ipsec option header does not count the size of the option header itself, causing an infinite loop when the length is zero. This issue can allow a remote attacker who is able to send an arbitrary packet to cause the machine to crash.
CVSSv2 Score:
7.8
Access vector:
NETWORK
Access complexity:
LOW
Authentication:
NONE
Confidentiality impact:
NONE
Integrity impact:
NONE
Availability impact:
COMPLETE
CVSSv2 Vector:
AV:N/AC:L/Au:N/C:N/I:N/A:C
CVSSv3 Score:
7.5
Attack vector:
NETWORK
Attack complexity:
LOW
Privileges required:
NONE
User interaction:
NONE
Scope:
UNCHANGED
Confidentiality impact:
NONE
Integrity impact:
NONE
Availability impact:
HIGH
CVSSv3 Vector:
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE:
835 (Loop with Unreachable Exit Condition ('Infinite Loop'))
References:
FreeBSD-SA-18:05 (FREEBSD)
1040628 (SECTRACK)
103666 (BID)
https://support.apple.com/kb/HT210090 (CONFIRM)
20190531 APPLE-SA-2019-5-30-1 AirPort Base Station Firmware Update 7.9.1 (BUGTRAQ)
20190611 APPLE-SA-2019-5-30-1 AirPort Base Station Firmware Update 7.9.1 (FULLDISC)
https://support.apple.com/kb/HT210091 (CONFIRM)
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