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FreebsdCVE-2018-17154

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

CVE-2018-17154

2018-09-2813:29:00

CWE-476

freebsd

web.nvd.nist.gov

freebsd

cve-2018-17154

memory checking

freebsd4_getfsstat

denial of service

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(r338987), 11.2-RELEASE-p4, and 11.1-RELEASE-p15, due to insufficient memory checking in the freebsd4_getfsstat system call, a NULL pointer dereference can occur. Unprivileged authenticated local users may be able to cause a denial of service.

Affected configurations

Nvd

Node

freebsdfreebsdRange<11.2

freebsdfreebsdMatch11.1p15

freebsdfreebsdMatch11.2p4

VendorProductVersionCPE
freebsdfreebsd*cpe:2.3:o:freebsd:freebsd:*:*:*:*:*:*:*:*
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	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"
      }
    ]
  }
]

References

security.FreeBSD.org/advisories/FreeBSD-EN-18:10.syscall.asc

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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