Not rated
CVE-2021-3640 A flaw use-after-free in function sco_sock_sendmsg() of the Linux kernel HCI subsystem was found in the way user calls…
Description
A flaw use-after-free in function sco_sock_sendmsg() of the Linux kernel HCI subsystem was found in the way user calls ioct UFFDIO_REGISTER or other way triggers race condition of the call sco_conn_del() together with the call sco_sock_sendmsg() with the expected controllable faulting memory page. A privileged local user could use this flaw to crash the system or escalate their privileges on the system.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| kernel | Versions not published |
References
- bugzilla.redhat.com bugzilla.redhat.com
- ubuntu.com ubuntu.com
- www.openwall.com www.openwall.com
- git.kernel.org git.kernel.org
- github.com github.com
- [debian-lts-announce] 20220309 [SECURITY] [DLA 2940-1] linux security update lists.debian.org
- [debian-lts-announce] 20220309 [SECURITY] [DLA 2941-1] linux-4.19 security update lists.debian.org
- DSA-5096 www.debian.org
- security.netapp.com security.netapp.com
Timeline
- Published
- Last modified
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