Vulnerability in Linux Kernel
CVE-2021-43976
In the Linux kernel through 5.15.2, mwifiex_usb_recv in drivers/net/wireless/marvell/mwifiex/usb.c allows an attacker (who can connect a crafted USB device) to cause a denial of service (skb_over_panic).
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.6 (Medium). Vector: CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.007 (51.1th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 51st percentile — 51.1% 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: 0.007 · change: +0.000
Affected products
Public proof-of-concept exploits
References
- patchwork.kernel.org/project/linux-wireless/patch/YX4CqjfRcTa6bVL+@Zekuns-MBP-1…
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- www.debian.org/security/2022/dsa-5092 (vendor-advisory, Third Party Advisory)
- lists.debian.org/debian-lts-announce/2022/03/msg00011.html (mailing-list, Mailing List, Third Party Advisory)
- lists.debian.org/debian-lts-announce/2022/03/msg00012.html (mailing-list, Mailing List, Third Party Advisory)
- www.debian.org/security/2022/dsa-5096 (vendor-advisory, Third Party Advisory)
- www.oracle.com/security-alerts/cpujul2022.html (Patch, Third Party Advisory)
- security.netapp.com/advisory/ntap-20211210-0001/ (Third Party Advisory)
- git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/
Frequently asked questions
- What is CVE-2021-43976?
- CVE-2021-43976 is a medium-severity vulnerability in Linux Kernel. CVSS score: 4.6/10. Published 2021-11-17.
- How severe is CVE-2021-43976?
- Medium severity. CVSS v3 base score is 4.6 out of 10.
- Is CVE-2021-43976 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.