National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2018-6925 Detail

Current Description

In FreeBSD before 11.2-STABLE(r338986), 11.2-RELEASE-p4, 11.1-RELEASE-p15, 10.4-STABLE(r338985), and 10.4-RELEASE-p13, due to improper maintenance of IPv6 protocol control block flags through various failure paths, an unprivileged authenticated local user may be able to cause a NULL pointer dereference causing the kernel to crash.

Source:  MITRE
View Analysis Description

Impact

CVSS v3.0 Severity and Metrics:

Base Score: 5.5 MEDIUM
Vector: AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H (V3 legend)
Impact Score: 3.6
Exploitability Score: 1.8


Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): None
Integrity (I): None
Availability (A): High

CVSS v2.0 Severity and Metrics:

Base Score: 4.9 MEDIUM
Vector: (AV:L/AC:L/Au:N/C:N/I:N/A:C) (V2 legend)
Impact Subscore: 6.9
Exploitability Subscore: 3.9


Access Vector (AV): Local
Access Complexity (AC): Low
Authentication (AU): None
Confidentiality (C): None
Integrity (I): None
Availability (A): Complete
Additional Information:
Allows disruption of service

References to Advisories, Solutions, and Tools

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Hyperlink Resource
https://security.FreeBSD.org/advisories/FreeBSD-EN-18:11.listen.asc Patch Vendor Advisory
https://www.flexera.com/company/secunia-research/advisories/SR-2018-21.html

Technical Details

Vulnerability Type (View All)

  • NULL Pointer Dereference (CWE-476)

Known Affected Software Configurations Switch to CPE 2.3

Configuration 1 ( hide )
 cpe:/o:freebsd:freebsd:10.4
     Show Matching CPE(s)
 cpe:/o:freebsd:freebsd:10.4:p13
     Show Matching CPE(s)
 cpe:/o:freebsd:freebsd:11.1:p15
     Show Matching CPE(s)
 cpe:/o:freebsd:freebsd
     Show Matching CPE(s)
Up to (excluding)
11.2
 cpe:/o:freebsd:freebsd:11.2:p4
     Show Matching CPE(s)


Change History

2 change records found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2018-6925
NVD Published Date:
09/28/2018
NVD Last Modified:
11/30/2018