CVE-2021-47055 - Vulnerability Details

Vendors	Products
Linux	Linux Kernel
Redhat	Enterprise Linux

Package	CPE	Advisory	Released Date
Red Hat Enterprise Linux 8
kernel-rt-0:4.18.0-553.5.1.rt7.346.el8_10	cpe:/a:redhat:enterprise_linux:8::nfv	RHSA-2024:3627	2024-06-05T00:00:00Z
kernel-0:4.18.0-553.5.1.el8_10	cpe:/o:redhat:enterprise_linux:8	RHSA-2024:3618	2024-06-05T00:00:00Z

Link	Providers
https://git.kernel.org/stable/c/077259f5e777c3c8821f6b41dee709fcda27306b
https://git.kernel.org/stable/c/1e97743fd180981bef5f01402342bb54bf1c6366
https://git.kernel.org/stable/c/5880afefe0cb9b2d5e801816acd58bfe91a96981
https://git.kernel.org/stable/c/75ed985bd6c8ac1d4e673e93ea9d96c9908c1d37
https://git.kernel.org/stable/c/7b6552719c0ccbbea29dde4be141da54fdb5877e
https://git.kernel.org/stable/c/9625b00cac6630479c0ff4b9fafa88bee636e1f0
https://git.kernel.org/stable/c/a08799d3e8c8088640956237c183f83463c39668
https://git.kernel.org/stable/c/f4d28d8b9b0e7c4ae04214b8d7e0b0466ec6bcaf
https://git.kernel.org/stable/c/f73b29819c6314c0ba8b7d5892dfb03487424bee
https://lore.kernel.org/linux-cve-announce/2024022950-CVE-2021-47055-6927@gregkh/T/#u
https://nvd.nist.gov/vuln/detail/CVE-2021-47055
https://www.cve.org/CVERecord?id=CVE-2021-47055

Type	Values Removed	Values Added
First Time appeared		Linux Linux linux Kernel
Weaknesses		CWE-667
CPEs		cpe:2.3:o:linux:linux_kernel::::::::
Vendors & Products		Linux Linux linux Kernel
Metrics	cvssV3_1 `{'score': 3.3, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L'}`	cvssV3_1 `{'score': 5.5, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H'}`

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}`

Type	Values Removed	Values Added
Metrics	cvssV3_1 `{'score': 0.0, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:N'}` threat_severity `None`	cvssV3_1 `{'score': 3.3, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L'}` threat_severity `Moderate`

Show plain JSON

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package : kernel-0:4.18.0-553.5.1.el8_10 (string)

product_name : Red Hat Enterprise Linux 8 (string)

release_date : 2024-06-05T00:00:00Z (string)

}

]

bugzilla : { »

description : kernel: mtd: require write permissions for locking and badblock ioctls (string)

id : 2267185 (string)

url : https://bugzilla.redhat.com/show_bug.cgi?id=2267185 (string)

}

csaw : false (boolean)

cvss3 : { »

cvss3_base_score : 3.3 (string)

cvss3_scoring_vector : CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L (string)

status : verified (string)

}

details : [ »

0 : In the Linux kernel, the following vulnerability has been resolved: mtd: require write permissions for locking and badblock ioctls MEMLOCK, MEMUNLOCK and OTPLOCK modify protection bits. Thus require write permission. Depending on the hardware MEMLOCK might even be write-once, e.g. for SPI-NOR flashes with their WP# tied to GND. OTPLOCK is always write-once. MEMSETBADBLOCK modifies the bad block table. (string)

1 : A flaw was found in the Linux Kernel, requiring write permissions for locking and badblock ioctls, as they modify protection bits. (string)

]

name : CVE-2021-47055 (string)

package_state : [ »

0 : { »

cpe : cpe:/o:redhat:enterprise_linux:6 (string)

fix_state : Out of support scope (string)

package_name : kernel (string)

product_name : Red Hat Enterprise Linux 6 (string)

}

1 : { »

cpe : cpe:/o:redhat:enterprise_linux:7 (string)

fix_state : Out of support scope (string)

package_name : kernel (string)

product_name : Red Hat Enterprise Linux 7 (string)

}

2 : { »

cpe : cpe:/o:redhat:enterprise_linux:7 (string)

fix_state : Out of support scope (string)

package_name : kernel-rt (string)

product_name : Red Hat Enterprise Linux 7 (string)

}

3 : { »

cpe : cpe:/o:redhat:enterprise_linux:9 (string)

fix_state : Not affected (string)

package_name : kernel (string)

product_name : Red Hat Enterprise Linux 9 (string)

}

4 : { »

cpe : cpe:/o:redhat:enterprise_linux:9 (string)

fix_state : Not affected (string)

package_name : kernel-rt (string)

product_name : Red Hat Enterprise Linux 9 (string)

}

]

public_date : 2024-02-29T00:00:00Z (string)

references : [ »

0 : https://www.cve.org/CVERecord?id=CVE-2021-47055 https://nvd.nist.gov/vuln/detail/CVE-2021-47055 https://lore.kernel.org/linux-cve-announce/2024022950-CVE-2021-47055-6927@gregkh/T/#u (string)

]

statement : Red Hat Enterprise Linux 9 is not affected by this vulnerability. (string)

threat_severity : Moderate (string)

}

Metrics

Attack Vector Local

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact High

User Interaction None

Exploitation none

Automatable no

Technical Impact partial

Affected Vendors & Products

Metrics

Attack Vector Local

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact High

User Interaction None

Exploitation none

Automatable no

Technical Impact partial

Affected Vendors & Products

JSON object

JSON object

JSON object

JSON object