01 Record

CVE-2022-33981

drivers/block/floppy.c in the Linux kernel before 5.17.6 is vulnerable to a denial of service, because of a concurrency use-after-free flaw after deallocating raw_cmd in the raw_cmd_ioctl function.

LowPUBLISHEDCNA: mitre

CNA base score3.3 CVSS v3.xCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L

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02 Description

drivers/block/floppy.c in the Linux kernel before 5.17.6 is vulnerable to a denial of service, because of a concurrency use-after-free flaw after deallocating raw_cmd in the raw_cmd_ioctl function.

03 Exploitation and scoring

Exploitation

Public exploit code exists. CISA's assessment records a public proof of concept. That is not a report of exploitation in the wild.

SSVC decision

ExploitationpocPublic proof-of-concept exploit code exists. Not a report of exploitation in the wild.
AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

0.55% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 45.9% of scored records. A rank, not a probability.

NVD base score

3.3 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L

NVD analysis status

Modified. NVD last modified this record on 2026-06-17.

Red Hat severity

Moderate. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published

2022-06-18 15:27Z4 YR AGO

Last updated

2025-05-05 16:15Z1 YR AGO

Reserved

2022-06-18

Assigning CNA

mitre

Record state

PUBLISHED

Severity

Low (CVSS 3.3)

CNA CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L

Weaknesses

CWE-416Use After FreeVariant

Data version

5.1

Document digest

97dfeebdf3355fe107e6127d75022e74da567aac3dfb500c8a12243590dec116

05 Affected products

VendorProductVersionsPlatforms

debiandebian_linuxNot specified—

linuxlinux_kernelNot specified—

redhatenterprise_linuxNot specified—

06 References

github.comhttps://github.com/torvalds/linux/commit/233087ca063686964a53c829d547c7571e3f67bfx_refsource_MISC
exchange.xforce.ibmcloud.comhttps://exchange.xforce.ibmcloud.com/vulnerabilities/225362x_refsource_MISC
seclists.orghttps://seclists.org/oss-sec/2022/q2/66x_refsource_MISC
cdn.kernel.orghttps://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.17.6x_refsource_MISC
lists.debian.org[debian-lts-announce] 20220701 [SECURITY] [DLA 3065-1] linux security updatehttps://lists.debian.org/debian-lts-announce/2022/07/msg00000.htmlmailing-listx_refsource_MLIST
www.debian.orgDSA-5173https://www.debian.org/security/2022/dsa-5173vendor-advisoryx_refsource_DEBIAN

07 Fixed in

Arch Linux

linux-lts
Fixed in 5.15.54-1

Source: Arch Linux Security Tracker, the Arch Linux security team. Reformatted by exploit.cc.

Debian 12

linux
Fixed in 5.17.6-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 13

linux
Fixed in 5.17.6-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 14

linux
Fixed in 5.17.6-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.