CVE-2021-33655

When sending malicous data to kernel by ioctl cmd FBIOPUT_VSCREENINFO,kernel will write memory out of bounds.

CVSS v3.0 6.7 MEDIUM

6.7^/10

CVSS v3.0 : MEDIUM

V3 Legend

Vector :

Exploitability : 0.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required HIGH

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=086ff84617185393a0bbf25830c4f36412a7d3f4	Mailing List Patch Vendor Advisory
http://www.openwall.com/lists/oss-security/2022/07/19/2	Mailing List Patch Third Party Advisory
https://www.debian.org/security/2022/dsa-5191	Third Party Advisory
https://lists.debian.org/debian-lts-announce/2022/10/msg00000.html

Configurations

Configuration 1 (hide)

OR	cpe:2.3:o:linux:linux_kernel:5.19:rc1::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel:5.19:rc2::::::
	cpe:2.3:o:linux:linux_kernel:5.19:rc3::::::
	cpe:2.3:o:linux:linux_kernel:5.19:rc4::::::
	cpe:2.3:o:linux:linux_kernel:5.19:rc5::::::

Configuration 2 (hide)

cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*

Information

Published : 2022-07-18 08:15

Updated : 2022-10-02 12:15

NVD link : CVE-2021-33655

Mitre link : CVE-2021-33655

JSON object : View

CWE

CWE-787

Out-of-bounds Write

Products Affected

debian

debian_linux

linux

linux_kernel

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6.7 /10