#VU64944 Use-after-free


Published: 2022-07-06

Vulnerability identifier: #VU64944

Vulnerability risk: Low

CVSSv3.1:

CVE-ID: CVE-2022-33981

CWE-ID: CWE-416

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 denial of service attack.

The vulnerability exists due to a use-after-free error in drivers/block/floppy.c in the Linux kernel when deallocating raw_cmd in the raw_cmd_ioctl function(). A local user can trigger use-after-free and perform denial of service attack.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Linux kernel: All versions


CPE

External links
http://github.com/torvalds/linux/commit/233087ca063686964a53c829d547c7571e3f67bf
http://seclists.org/oss-sec/2022/q2/66
http://exchange.xforce.ibmcloud.com/vulnerabilities/225362
http://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.17.6
http://bugzilla.redhat.com/show_bug.cgi?id=2099504


Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?


Latest bulletins with this vulnerability