#VU89240 State Issues in Linux kernel - CVE-2021-47192

Vulnerability identifier: #VU89240

Vulnerability risk: Low

CVSSv4.0: 4.3 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2021-47192

CWE-ID: CWE-371

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
Linux kernel
Operating systems & Components / Operating system

Vendor: Linux Foundation

Description

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to an error during iSCSI recovery within the store_state_field() function in drivers/scsi/scsi_sysfs.c. A local user can perform a denial of service (DoS) attack.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Linux kernel: All versions

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External links
https://git.kernel.org/stable/c/edd783162bf2385b43de6764f2d4c6e9f4f6be27
https://git.kernel.org/stable/c/a792e0128d232251edb5fdf42fb0f9fbb0b44a73
https://git.kernel.org/stable/c/bcc0e3175a976b7fa9a353960808adb0bb49ead8
https://git.kernel.org/stable/c/4edd8cd4e86dd3047e5294bbefcc0a08f66a430f

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Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.