Go to homepageCyberStrike

Menu

Star on GitHub · 3.4k
Sign inDownload

CVE-2021-47188

7.8 · HIGH

In the Linux kernel, the following vulnerability has been resolved: scsi: ufs: core: Improve SCSI abort handling The following has been observed on a test setup: WARNING: CPU: 4 PID: 250 at driv…

Published Apr 10, 2024EPSS 0.24%

Overview

CVE-2021-47188 is a high-severity vulnerability. It was published on April 10, 2024 and has a CVSS 3.1 base score of 7.8 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.8, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

Technical description

In the Linux kernel, the following vulnerability has been resolved:

scsi: ufs: core: Improve SCSI abort handling

The following has been observed on a test setup:

WARNING: CPU: 4 PID: 250 at drivers/scsi/ufs/ufshcd.c:2737 ufshcd_queuecommand+0x468/0x65c

Call trace:

ufshcd_queuecommand+0x468/0x65c

scsi_send_eh_cmnd+0x224/0x6a0

scsi_eh_test_devices+0x248/0x418

scsi_eh_ready_devs+0xc34/0xe58

scsi_error_handler+0x204/0x80c

kthread+0x150/0x1b4

ret_from_fork+0x10/0x30

That warning is triggered by the following statement:

WARN_ON(lrbp->cmd);

Fix this warning by clearing lrbp->cmd from the abort handler.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refgit.kernel.org/stable/c/3ff1f6b6ba6f97f50862aa50e79959cc8ddc2566Refgit.kernel.org/stable/c/9491bc16082d9a402c9099acbfffc89af6f9316fRefgit.kernel.org/stable/c/c36baca06efa833adaefba61f45fefdc49b6d070Refgit.kernel.org/stable/c/3ff1f6b6ba6f97f50862aa50e79959cc8ddc2566Refgit.kernel.org/stable/c/c36baca06efa833adaefba61f45fefdc49b6d070

How CyberStrike helps

Frequently asked questions

What is CVE-2021-47188?

CVE-2021-47188 is a high-severity vulnerability. It was published on April 10, 2024 and has a CVSS 3.1 base score of 7.8 (HIGH).

How severe is CVE-2021-47188?

This vulnerability has a CVSS 3.1 base score of 7.8, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2021-47188?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2021-47188?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2021-47188 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

Related HIGH CVEs from 2021

View all
Browse by year2026202520242023202220212020201920182017201620152014201320122011201020092008200720062005200420032002200120001999
Watch the demo →