Use After Free in Linux Kernel
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.
Vulnerability class: Use-After-Free
Published · last modified .
CVSS v3 metric
CVSS v3 base score 3.3 (Low). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L.
EPSS exploit prediction
EPSS: 0.006 (44.2th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 44th percentile — 44.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: 0.000
Affected products
- Linux Kernel
- Debian Linux — versions 9.0, 10.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- github.com/torvalds/linux/commit/233087ca063686964a53c829d547c7571e3f67bf (Patch, Third Party Advisory)
- exchange.xforce.ibmcloud.com/vulnerabilities/225362 (VDB Entry, Third Party Advisory)
- seclists.org/oss-sec/2022/q2/66 (Exploit, Patch, Mailing List, Third Party Advisory)
- cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.17.6 (Release Notes, Vendor Advisory)
- lists.debian.org/debian-lts-announce/2022/07/msg00000.html (mailing-list, Mailing List, Third Party Advisory)
- www.debian.org/security/2022/dsa-5173 (vendor-advisory, Third Party Advisory)
Frequently asked questions
- What is CVE-2022-33981?
- CVE-2022-33981 is a low-severity vulnerability in Linux Kernel, classified under Use After Free. CVSS score: 3.3/10. Published 2022-06-18.
- How severe is CVE-2022-33981?
- Low severity. CVSS v3 base score is 3.3 out of 10.
- Is CVE-2022-33981 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.