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.
References
Link | Resource |
---|---|
https://bugzilla.redhat.com/show_bug.cgi?id=1980646 | Issue Tracking Patch Third Party Advisory |
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/net/bluetooth/sco.c?h=v5.16&id=99c23da0eed4fd20cae8243f2b51e10e66aa0951 | Patch Vendor Advisory |
https://github.com/torvalds/linux/commit/99c23da0eed4fd20cae8243f2b51e10e66aa0951 | Patch Third Party Advisory |
https://lists.debian.org/debian-lts-announce/2022/03/msg00011.html | Mailing List Third Party Advisory |
https://lists.debian.org/debian-lts-announce/2022/03/msg00012.html | Mailing List Third Party Advisory |
https://security.netapp.com/advisory/ntap-20220419-0003/ | Third Party Advisory |
https://ubuntu.com/security/CVE-2021-3640 | Patch Third Party Advisory |
https://www.debian.org/security/2022/dsa-5096 | Third Party Advisory |
https://www.openwall.com/lists/oss-security/2021/07/22/1 | Exploit Mailing List Third Party Advisory |
History
No history.
MITRE Information
Status: PUBLISHED
Assigner: redhat
Published: 2022-03-03T22:04:15
Updated: 2022-04-19T18:06:25
Reserved: 2021-07-09T00:00:00
Link: CVE-2021-3640
JSON object: View
NVD Information
Status : Modified
Published: 2022-03-03T23:15:08.197
Modified: 2023-11-07T03:38:10.750
Link: CVE-2021-3640
JSON object: View
Redhat Information
No data.