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[email protected]CVE-2021-29628

HistoryMay 28, 2021 - 3:15 p.m.

CVE-2021-29628

2021-05-2815:15:08

CWE-863

[email protected]

web.nvd.nist.gov

freebsd

cve-2021-29628

security vulnerability

smap protections

kernel bug exploit

5 Medium

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

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

HIGH

Availability Impact

NONE

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

0.001 Low

EPSS

Percentile

46.4%

JSON

In FreeBSD 13.0-STABLE before n245764-876ffe28796c, 12.2-STABLE before r369857, 13.0-RELEASE before p1, and 12.2-RELEASE before p7, a system call triggering a fault could cause SMAP protections to be disabled for the duration of the system call. This weakness could be combined with other kernel bugs to craft an exploit.

Affected configurations

NVD

Node

freebsdfreebsdMatch12.2-

freebsdfreebsdMatch12.2beta1-p1

freebsdfreebsdMatch12.2p1

freebsdfreebsdMatch12.2p2

freebsdfreebsdMatch12.2p3

freebsdfreebsdMatch12.2p4

freebsdfreebsdMatch12.2p5

freebsdfreebsdMatch12.2p6

freebsdfreebsdMatch13.0-

freebsdfreebsdMatch13.0beta3-p1

freebsdfreebsdMatch13.0rc3

freebsdfreebsdMatch13.0rc4

freebsdfreebsdMatch13.0rc5-p1

CPENameOperatorVersion
freebsd:freebsdfreebsdeq12.2
freebsd:freebsdfreebsdeq13.0

CPE	Name	Operator	Version
freebsd:freebsd	freebsd	eq	12.2
freebsd:freebsd	freebsd	eq	13.0

CNA Affected

[
  {
    "product": "FreeBSD",
    "vendor": "n/a",
    "versions": [
      {
        "status": "affected",
        "version": "FreeBSD 13.0-RELEASE before p1, 12.2-RELEASE before p7"
      }
    ]
  }
]