vulnerability
Oracle Linux: CVE-2021-3348: ELSA-2021-4356: kernel security, bug fix, and enhancement update (MODERATE) (Multiple Advisories)
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 4 | (AV:L/AC:M/Au:N/C:P/I:P/A:P) | Jan 28, 2021 | Mar 9, 2021 | Dec 3, 2025 |
Severity
4
CVSS
(AV:L/AC:M/Au:N/C:P/I:P/A:P)
Published
Jan 28, 2021
Added
Mar 9, 2021
Modified
Dec 3, 2025
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.
A use after free flaw in the Linux kernel network block device (NBD) subsystem was found in the way user calls an ioctl NBD_SET_SOCK at a certain point during device setup.
A use after free flaw in the Linux kernel network block device (NBD) subsystem was found in the way user calls an ioctl NBD_SET_SOCK at a certain point during device setup.
Solutions
oracle-linux-upgrade-kerneloracle-linux-upgrade-kernel-uek
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