Vulnerability Details : CVE-2018-6925
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.
Vulnerability category: Memory Corruption
Products affected by CVE-2018-6925
- cpe:2.3:o:freebsd:freebsd:*:*:*:*:*:*:*:*
- cpe:2.3:o:freebsd:freebsd:10.4:*:*:*:*:*:*:*
- cpe:2.3:o:freebsd:freebsd:11.1:p15:*:*:*:*:*:*
- cpe:2.3:o:freebsd:freebsd:11.2:p4:*:*:*:*:*:*
- cpe:2.3:o:freebsd:freebsd:10.4:p13:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2018-6925
0.04%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 6 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2018-6925
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
4.9
|
MEDIUM | AV:L/AC:L/Au:N/C:N/I:N/A:C |
3.9
|
6.9
|
NIST | |
|
5.5
|
MEDIUM | CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
1.8
|
3.6
|
NIST |
CWE ids for CVE-2018-6925
-
The product dereferences a pointer that it expects to be valid but is NULL.Assigned by: nvd@nist.gov (Primary)
References for CVE-2018-6925
-
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
FreeBSD IPv6 Socket Flags Denial of Service Vulnerabilities
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