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FreebsdCVE-2018-6925

HistorySep 28, 2018 - 1:29 p.m.

CVE-2018-6925

2018-09-2813:29:01

CWE-476

freebsd

web.nvd.nist.gov

cve-2018-6925

freebsd

kernel crash

ipv6

protocol control block

null pointer dereference

nvd

CVSS2

4.9

Attack Vector

LOCAL

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

COMPLETE

AV:L/AC:L/Au:N/C:N/I:N/A:C

CVSS3

5.5

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

AI Score

5.4

Confidence

High

EPSS

Percentile

5.1%

JSON

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.

Affected configurations

Nvd

Node

freebsdfreebsdRange<11.2

freebsdfreebsdMatch10.4

freebsdfreebsdMatch10.4p13

freebsdfreebsdMatch11.1p15

freebsdfreebsdMatch11.2p4

VendorProductVersionCPE
freebsdfreebsd*cpe:2.3:o:freebsd:freebsd:*:*:*:*:*:*:*:*
freebsdfreebsd10.4cpe:2.3:o:freebsd:freebsd:10.4:*:*:*:*:*:*:*
freebsdfreebsd10.4cpe:2.3:o:freebsd:freebsd:10.4:p13:*:*:*:*:*:*
freebsdfreebsd11.1cpe:2.3:o:freebsd:freebsd:11.1:p15:*:*:*:*:*:*
freebsdfreebsd11.2cpe:2.3:o:freebsd:freebsd:11.2:p4:*:*:*:*:*:*

Vendor	Product	Version	CPE
freebsd	freebsd	*	cpe:2.3:o:freebsd:freebsd::::::::
freebsd	freebsd	10.4	cpe:2.3:o:freebsd:freebsd:10.4:::::::*
freebsd	freebsd	10.4	cpe:2.3:o:freebsd:freebsd:10.4:p13::::::
freebsd	freebsd	11.1	cpe:2.3:o:freebsd:freebsd:11.1:p15::::::
freebsd	freebsd	11.2	cpe:2.3:o:freebsd:freebsd:11.2:p4::::::

CNA Affected

[
  {
    "product": "FreeBSD",
    "vendor": "FreeBSD",
    "versions": [
      {
        "status": "affected",
        "version": "11.2 before 11.2-RELEASE-p4"
      },
      {
        "status": "affected",
        "version": "11.1 before 11.1-RELEASE-p15"
      },
      {
        "status": "affected",
        "version": "10.x before 10.4-RELEASE-p13"
      }
    ]
  }
]

References

security.FreeBSD.org/advisories/FreeBSD-EN-18:11.listen.asc

www.flexera.com/company/secunia-research/advisories/SR-2018-21.html

CVSS2

4.9

Attack Vector

LOCAL

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

COMPLETE

AV:L/AC:L/Au:N/C:N/I:N/A:C

CVSS3

5.5

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

AI Score

5.4

Confidence

High

EPSS

Percentile

5.1%

JSON

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