CVE-2021-3640

CVSS V2 Medium 6.9 CVSS V3 High 7
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.
Overview
  • CVE ID
  • CVE-2021-3640
  • Assigner
  • secalert@redhat.com
  • Vulnerability Status
  • Modified
  • Published Version
  • 2022-03-03T23:15:08
  • Last Modified Date
  • 2023-02-12T23:41:41
Weakness Enumerations
CWE URL
CWE-416 http://cwe.mitre.org/data/definitions/416.html
CWE-362 http://cwe.mitre.org/data/definitions/362.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
AND
cpe:2.3:a:linux:linux_kernel:*:*:*:*:*:*:*:* 1 OR 5.15.3
AND
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* 1 OR
AND
cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:* 1 OR
AND
cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:esm:*:*:* 1 OR
cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:esm:*:*:* 1 OR
cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:* 1 OR
cpe:2.3:o:canonical:ubuntu_linux:20.04:*:*:*:lts:*:*:* 1 OR
cpe:2.3:o:canonical:ubuntu_linux:21.10:*:*:*:*:*:*:* 1 OR
AND
cpe:2.3:o:netapp:h300s_firmware:-:*:*:*:*:*:*:* 1 OR
cpe:2.3:h:netapp:h300s:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:netapp:h700s_firmware:-:*:*:*:*:*:*:* 1 OR
cpe:2.3:h:netapp:h700s:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:netapp:h300e_firmware:-:*:*:*:*:*:*:* 1 OR
cpe:2.3:h:netapp:h300e:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:netapp:h500e_firmware:-:*:*:*:*:*:*:* 1 OR
cpe:2.3:h:netapp:h500e:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:netapp:h700e_firmware:-:*:*:*:*:*:*:* 1 OR
cpe:2.3:h:netapp:h700e:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:netapp:h410s_firmware:-:*:*:*:*:*:*:* 1 OR
cpe:2.3:h:netapp:h410s:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:netapp:h410c_firmware:-:*:*:*:*:*:*:* 1 OR
cpe:2.3:h:netapp:h410c:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:netapp:h500s_firmware:-:*:*:*:*:*:*:* 1 OR
cpe:2.3:h:netapp:h500s:-:*:*:*:*:*:*:* 0 OR
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:L/AC:M/Au:N/C:C/I:C/A:C
  • Access Vector
  • LOCAL
  • Access Compatibility
  • MEDIUM
  • Authentication
  • NONE
  • Confidentiality Impact
  • COMPLETE
  • Integrity Impact
  • COMPLETE
  • Availability Impact
  • COMPLETE
  • Base Score
  • 6.9
  • Severity
  • MEDIUM
  • Exploitability Score
  • 3.4
  • Impact Score
  • 10
CVSS Version 3
  • Version
  • 3.1
  • Vector String
  • CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
  • Attack Vector
  • LOCAL
  • Attack Compatibility
  • HIGH
  • Privileges Required
  • LOW
  • User Interaction
  • NONE
  • Scope
  • UNCHANGED
  • Confidentiality Impact
  • HIGH
  • Availability Impact
  • HIGH
  • Base Score
  • 7
  • Base Severity
  • HIGH
  • Exploitability Score
  • 1
  • Impact Score
  • 5.9
References
Reference URL Reference Tags
https://access.redhat.com/errata/RHSA-2022:7444
https://access.redhat.com/errata/RHSA-2022:7683
https://access.redhat.com/errata/RHSA-2022:7933
https://access.redhat.com/errata/RHSA-2022:8267
https://access.redhat.com/security/cve/CVE-2021-3640
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://lkml.org/lkml/2021/8/28/238
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
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2021-3640
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-3640
History
Created Old Value New Value Data Type Notes
2022-04-20 17:00:31 Added to TrackCVE
2022-12-06 11:18:06 2022-03-03T23:15Z 2022-03-03T23:15:08 CVE Published Date updated
2022-12-06 11:18:06 2022-04-27T19:58:18 CVE Modified Date updated
2022-12-06 11:18:06 Analyzed Vulnerability Status updated
2022-12-12 19:13:35 Analyzed Undergoing Analysis Vulnerability Status updated
2023-02-02 18:11:38 2023-02-02T17:29:14 CVE Modified Date updated
2023-02-02 18:11:38 Undergoing Analysis Analyzed Vulnerability Status updated
2023-02-02 18:11:38 Weakness Enumeration update
2023-02-02 23:13:16 2023-02-02T21:21:17 CVE Modified Date updated
2023-02-02 23:13:16 Analyzed Modified Vulnerability Status updated
2023-02-02 23:13:17 References updated
2023-02-13 00:13:57 2023-02-12T23:41:41 CVE Modified Date updated