Vulnerability Details : CVE-2021-43976
Potential exploit
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).
Vulnerability category: Denial of service
Products affected by CVE-2021-43976
- cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
- cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
- cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
- cpe:2.3:a:oracle:communications_cloud_native_core_policy:22.2.0:*:*:*:*:*:*:*
- cpe:2.3:a:oracle:communications_cloud_native_core_binding_support_function:22.1.3:*:*:*:*:*:*:*
- cpe:2.3:a:oracle:communications_cloud_native_core_network_exposure_function:22.1.1:*:*:*:*:*:*:*
- cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*
- cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:*
- cpe:2.3:a:netapp:cloud_backup:-:*:*:*:*:*:*:*
- cpe:2.3:o:netapp:h410c_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:netapp:h300s_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:netapp:h500s_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:netapp:h700s_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:netapp:h300e_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:netapp:h500e_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:netapp:h700e_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:netapp:h410s_firmware:-:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-43976
0.22%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 60 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-43976
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
2.1
|
LOW | AV:L/AC:L/Au:N/C:N/I:N/A:P |
3.9
|
2.9
|
NIST | |
4.6
|
MEDIUM | CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
0.9
|
3.6
|
NIST |
References for CVE-2021-43976
-
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/X24M7KDC4OJOZNS3RDSYC7ELNELOLQ2N/
[SECURITY] Fedora 34 Update: kernel-5.15.4-101.fc34 - package-announce - Fedora Mailing-Lists
-
https://lists.debian.org/debian-lts-announce/2022/03/msg00011.html
[SECURITY] [DLA 2940-1] linux security updateMailing List;Third Party Advisory
-
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/X24M7KDC4OJOZNS3RDSYC7ELNELOLQ2N/
[SECURITY] Fedora 34 Update: kernel-5.15.4-101.fc34 - package-announce - Fedora Mailing-ListsMailing List;Third Party Advisory
-
https://www.debian.org/security/2022/dsa-5092
Debian -- Security Information -- DSA-5092-1 linuxThird Party Advisory
-
https://www.debian.org/security/2022/dsa-5096
Debian -- Security Information -- DSA-5096-1 linuxThird Party Advisory
-
https://lists.debian.org/debian-lts-announce/2022/03/msg00012.html
[SECURITY] [DLA 2941-1] linux-4.19 security updateMailing List;Third Party Advisory
-
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/YODMYMGZYDXQKGJGX7TJG4XV4L5YLLBD/
[SECURITY] Fedora 35 Update: kernel-headers-5.15.4-200.fc35 - package-announce - Fedora Mailing-ListsMailing List;Third Party Advisory
-
https://patchwork.kernel.org/project/linux-wireless/patch/YX4CqjfRcTa6bVL+@Zekuns-MBP-16.fios-router.home/
mwifiex_usb: Fix skb_over_panic in mwifiex_usb_recv - PatchworkExploit;Mailing List;Patch;Vendor Advisory
-
https://patchwork.kernel.org/project/linux-wireless/patch/YX4CqjfRcTa6bVL+%40Zekuns-MBP-16.fios-router.home/
mwifiex_usb: Fix skb_over_panic in mwifiex_usb_recv - Patchwork
-
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YODMYMGZYDXQKGJGX7TJG4XV4L5YLLBD/
[SECURITY] Fedora 35 Update: kernel-headers-5.15.4-200.fc35 - package-announce - Fedora Mailing-Lists
-
https://security.netapp.com/advisory/ntap-20211210-0001/
November 2021 Linux Kernel Vulnerabilities in NetApp Products | NetApp Product SecurityThird Party Advisory
-
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=04d80663f67ccef893061b49ec8a42ff7045ae84
mwifiex: Fix skb_over_panic in mwifiex_usb_recv() - kernel/git/torvalds/linux.git - Linux kernel source tree
-
https://www.oracle.com/security-alerts/cpujul2022.html
Oracle Critical Patch Update Advisory - July 2022Patch;Third Party Advisory
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