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FreebsdCVE-2020-7464

HistoryMar 26, 2021 - 9:15 p.m.

CVE-2020-7464

2021-03-2621:15:13

CWE-74

freebsd

web.nvd.nist.gov

cve-2020-7464

freebsd

programming error

usb ethernet interfaces

security vulnerability

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

PARTIAL

Availability Impact

NONE

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

CVSS3

5.3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

LOW

Availability Impact

NONE

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

AI Score

5.2

Confidence

High

EPSS

0.001

Percentile

35.9%

JSON

In FreeBSD 12.2-STABLE before r365730, 11.4-STABLE before r365738, 12.1-RELEASE before p10, 11.4-RELEASE before p4, and 11.3-RELEASE before p14, a programming error in the ure(4) device driver caused some Realtek USB Ethernet interfaces to incorrectly report packets with more than 2048 bytes in a single USB transfer as having a length of only 2048 bytes. An adversary can exploit this to cause the driver to misinterpret part of the payload of a large packet as a separate packet, and thereby inject packets across security boundaries such as VLANs.

Affected configurations

Nvd

Node

freebsdfreebsdMatch11.3-

freebsdfreebsdMatch11.3p1

freebsdfreebsdMatch11.3p10

freebsdfreebsdMatch11.3p11

freebsdfreebsdMatch11.3p12

freebsdfreebsdMatch11.3p13

freebsdfreebsdMatch11.3p2

freebsdfreebsdMatch11.3p3

freebsdfreebsdMatch11.3p4

freebsdfreebsdMatch11.3p5

freebsdfreebsdMatch11.3p6

freebsdfreebsdMatch11.3p7

freebsdfreebsdMatch11.3p8

freebsdfreebsdMatch11.3p9

freebsdfreebsdMatch11.4-

freebsdfreebsdMatch11.4p1

freebsdfreebsdMatch11.4p2

freebsdfreebsdMatch11.4p3

freebsdfreebsdMatch12.1-

freebsdfreebsdMatch12.1p1

freebsdfreebsdMatch12.1p2

freebsdfreebsdMatch12.1p3

freebsdfreebsdMatch12.1p4

freebsdfreebsdMatch12.1p5

freebsdfreebsdMatch12.1p6

freebsdfreebsdMatch12.1p7

freebsdfreebsdMatch12.1p8

freebsdfreebsdMatch12.1p9

freebsdfreebsdMatch12.2-

VendorProductVersionCPE
freebsdfreebsd11.3cpe:2.3:o:freebsd:freebsd:11.3:-:*:*:*:*:*:*
freebsdfreebsd11.3cpe:2.3:o:freebsd:freebsd:11.3:p1:*:*:*:*:*:*
freebsdfreebsd11.3cpe:2.3:o:freebsd:freebsd:11.3:p10:*:*:*:*:*:*
freebsdfreebsd11.3cpe:2.3:o:freebsd:freebsd:11.3:p11:*:*:*:*:*:*
freebsdfreebsd11.3cpe:2.3:o:freebsd:freebsd:11.3:p12:*:*:*:*:*:*
freebsdfreebsd11.3cpe:2.3:o:freebsd:freebsd:11.3:p13:*:*:*:*:*:*
freebsdfreebsd11.3cpe:2.3:o:freebsd:freebsd:11.3:p2:*:*:*:*:*:*
freebsdfreebsd11.3cpe:2.3:o:freebsd:freebsd:11.3:p3:*:*:*:*:*:*
freebsdfreebsd11.3cpe:2.3:o:freebsd:freebsd:11.3:p4:*:*:*:*:*:*
freebsdfreebsd11.3cpe:2.3:o:freebsd:freebsd:11.3:p5:*:*:*:*:*:*

Vendor	Product	Version	CPE
freebsd	freebsd	11.3	cpe:2.3:o:freebsd:freebsd:11.3:-::::::
freebsd	freebsd	11.3	cpe:2.3:o:freebsd:freebsd:11.3:p1::::::
freebsd	freebsd	11.3	cpe:2.3:o:freebsd:freebsd:11.3:p10::::::
freebsd	freebsd	11.3	cpe:2.3:o:freebsd:freebsd:11.3:p11::::::
freebsd	freebsd	11.3	cpe:2.3:o:freebsd:freebsd:11.3:p12::::::
freebsd	freebsd	11.3	cpe:2.3:o:freebsd:freebsd:11.3:p13::::::
freebsd	freebsd	11.3	cpe:2.3:o:freebsd:freebsd:11.3:p2::::::
freebsd	freebsd	11.3	cpe:2.3:o:freebsd:freebsd:11.3:p3::::::
freebsd	freebsd	11.3	cpe:2.3:o:freebsd:freebsd:11.3:p4::::::
freebsd	freebsd	11.3	cpe:2.3:o:freebsd:freebsd:11.3:p5::::::

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CNA Affected

[
  {
    "product": "FreeBSD",
    "vendor": "n/a",
    "versions": [
      {
        "status": "affected",
        "version": "FreeBSD 12.1-RELEASE before p10, 11.4-RELEASE before p4, 11.3-RELEASE before p14"
      }
    ]
  }
]

References

security.FreeBSD.org/advisories/FreeBSD-SA-20:27.ure.asc

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

PARTIAL

Availability Impact

NONE

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

CVSS3

5.3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

LOW

Availability Impact

NONE

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

AI Score

5.2

Confidence

High

EPSS

0.001

Percentile

35.9%

JSON

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