CVE-2021-3348
7.0 HIGHnbd_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 l...
Published: 2021-02-01 · Last updated: 2026-06-17
Severity and scoring
- CVSS
- 7.0 HIGH
- Vector
- CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
- CWE
- CWE-362, CWE-416
Affected products
| Vendor | Product |
|---|---|
| debian | debian_linux, linux_kernel |
| linux | debian_linux, linux_kernel |
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.
Source: NVD
References
- [NVD]https://nvd.nist.gov/vuln/detail/CVE-2021-3348
- [Patch]http://www.openwall.com/lists/oss-security/2021/02/01/1
- [Patch]https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=b98e762e3d71e893b221f871825dc64694cfb258
- [Other]https://lists.debian.org/debian-lts-announce/2021/03/msg00035.html
- [Patch]https://www.openwall.com/lists/oss-security/2021/01/28/3
- [Patch]http://www.openwall.com/lists/oss-security/2021/02/01/1
- [Patch]https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=b98e762e3d71e893b221f871825dc64694cfb258
- [Other]https://lists.debian.org/debian-lts-announce/2021/03/msg00035.html
- [Patch]https://www.openwall.com/lists/oss-security/2021/01/28/3
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