Vulnerability Description
prealloc_elems_and_freelist in kernel/bpf/stackmap.c in the Linux kernel before 5.14.12 allows unprivileged users to trigger an eBPF multiplication integer overflow with a resultant out-of-bounds write.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | < 5.14.12 |
| Fedoraproject | Fedora | 33 |
| Netapp | Cloud Backup | - |
| Netapp | Hci Management Node | - |
| Netapp | Solidfire | - |
| Netapp | H410C Firmware | - |
| Netapp | H410C | - |
| Netapp | H300S Firmware | - |
| Netapp | H300S | - |
| Netapp | H500S Firmware | - |
| Netapp | H500S | - |
| Netapp | H700S Firmware | - |
| Netapp | H700S | - |
| Netapp | H300E Firmware | - |
| Netapp | H300E | - |
| Netapp | H500E Firmware | - |
| Netapp | H500E | - |
| Netapp | H700E Firmware | - |
| Netapp | H700E | - |
| Netapp | H410S Firmware | - |
Related Weaknesses (CWE)
References
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.14.12Mailing ListPatchVendor Advisory
- https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf.git/commit/?id=30e29a9a2Mailing ListPatchVendor Advisory
- https://github.com/torvalds/linux/commit/30e29a9a2bc6a4888335a6ede968b75cd329657PatchThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2021/12/msg00012.htmlMailing ListThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2022/03/msg00012.htmlMailing ListThird Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://security.netapp.com/advisory/ntap-20211029-0004/Third Party Advisory
- https://www.debian.org/security/2022/dsa-5096Third Party Advisory
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.14.12Mailing ListPatchVendor Advisory
- https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf.git/commit/?id=30e29a9a2Mailing ListPatchVendor Advisory
- https://github.com/torvalds/linux/commit/30e29a9a2bc6a4888335a6ede968b75cd329657PatchThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2021/12/msg00012.htmlMailing ListThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2022/03/msg00012.htmlMailing ListThird Party Advisory
FAQ
What is CVE-2021-41864?
CVE-2021-41864 is a vulnerability with a CVSS score of 7.8 (HIGH). prealloc_elems_and_freelist in kernel/bpf/stackmap.c in the Linux kernel before 5.14.12 allows unprivileged users to trigger an eBPF multiplication integer overflow with a resultant out-of-bounds writ...
How severe is CVE-2021-41864?
CVE-2021-41864 has been rated HIGH with a CVSS base score of 7.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2021-41864?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel, Fedoraproject Fedora, Netapp Cloud Backup, Netapp Hci Management Node, Netapp Solidfire.