Vulnerability Description
nbd_add_socket in drivers/block/nbd.c in the Linux kernel through 5.10.12 has an ndb_queue_rq use-after-free that could be triggered by local attackers (with access to the nbd device) via an I/O request at a certain point during device setup, aka CID-b98e762e3d71.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | <= 5.10.12 |
| Debian | Debian Linux | 9.0 |
Related Weaknesses (CWE)
References
- http://www.openwall.com/lists/oss-security/2021/02/01/1Mailing ListPatchThird Party Advisory
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=b9Mailing ListPatchVendor Advisory
- https://lists.debian.org/debian-lts-announce/2021/03/msg00035.htmlThird Party Advisory
- https://www.openwall.com/lists/oss-security/2021/01/28/3Mailing ListPatchThird Party Advisory
- http://www.openwall.com/lists/oss-security/2021/02/01/1Mailing ListPatchThird Party Advisory
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=b9Mailing ListPatchVendor Advisory
- https://lists.debian.org/debian-lts-announce/2021/03/msg00035.htmlThird Party Advisory
- https://www.openwall.com/lists/oss-security/2021/01/28/3Mailing ListPatchThird Party Advisory
FAQ
What is CVE-2021-3348?
CVE-2021-3348 is a vulnerability with a CVSS score of 7.0 (HIGH). nbd_add_socket in drivers/block/nbd.c in the Linux kernel through 5.10.12 has an ndb_queue_rq use-after-free that could be triggered by local attackers (with access to the nbd device) via an I/O reque...
How severe is CVE-2021-3348?
CVE-2021-3348 has been rated HIGH with a CVSS base score of 7.0/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2021-3348?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel, Debian Debian Linux.