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CVE-2018-6918

N/A
Published: April 4, 2018 at 02:00 PM UTC
Updated: June 17, 2026 at 02:02 AM UTC
1 product affected across 1 vendorFreeBSD

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Severity
N/A
Exploit prediction
EPSS 4%

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

FreeBSD· Freebsd
95%
10.0 ≤ v < 10.411.0 ≤ v < 11.1All supported versions of FreeBSD.
Affected range stops below 10.4, so it looks safe — our inference, not a vendor statement
Affected range stops below 11.1, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (7)

Mailing Listx_refsource_FULLDISC
Source: [email protected]
http://seclists.org/fulldisclosure/2019/Jun/6
VDB Entryx_refsource_BIDThird Party Advisory
Source: [email protected]
http://www.securityfocus.com/bid/103666
VDB Entryx_refsource_SECTRACKThird Party Advisory
Source: [email protected]
http://www.securitytracker.com/id/1040628
Mailing Listx_refsource_BUGTRAQ
Source: [email protected]
https://seclists.org/bugtraq/2019/May/77
Vendor Advisoryx_refsource_FREEBSD
Source: [email protected]
https://security.FreeBSD.org/advisories/FreeBSD-SA-18:05.ipsec.asc
x_refsource_CONFIRM
Source: [email protected]
https://support.apple.com/kb/HT210090
x_refsource_CONFIRM
Source: [email protected]
https://support.apple.com/kb/HT210091

CVSS

7.8HIGH[email protected]
Confidentiality
NONE
Integrity
NONE
Availability
COMPLETE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-835

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