CVE-2021-3640
Linux Kernel HCI Sco Use-After-Free Vulnerability
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.
INFO
Published Date :
March 3, 2022, 11:15 p.m.
Last Modified :
Nov. 7, 2023, 3:38 a.m.
Source :
[email protected]
Remotely Exploitable :
No
Impact Score :
5.9
Exploitability Score :
1.0
Public PoC/Exploit Available at Github
CVE-2021-3640 has a 1 public PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
Affected Products
The following products are affected by CVE-2021-3640
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2021-3640.
| URL | 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 |
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Map Vulnerabilities into Different Layers of the Container Image
Python
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2021-3640 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-3640 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
CVE Modified by [email protected]
Nov. 07, 2023
Action Type Old Value New Value Removed CWE Red Hat, Inc. CWE-416 -
Reanalysis by [email protected]
Oct. 05, 2023
Action Type Old Value New Value Changed CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (excluding) 4.4.293 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.5 up to (excluding) 4.9.291 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.10 up to (excluding) 4.14.256 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.15 up to (excluding) 4.19.218 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.20 up to (excluding) 5.4.160 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.5.0 up to (excluding) 5.10.80 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.11 up to (excluding) 5.14.19 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.15 up to (excluding) 5.15.3 OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions up to (excluding) 4.4.293 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.5 up to (excluding) 4.9.291 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.10 up to (excluding) 4.14.256 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.15 up to (excluding) 4.19.218 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.20 up to (excluding) 5.4.160 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.5.0 up to (excluding) 5.10.80 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.11 up to (excluding) 5.14.19 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.15 up to (excluding) 5.15.3 -
Modified Analysis by [email protected]
Aug. 11, 2023
Action Type Old Value New Value Changed CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions up to (excluding) 5.15.3 OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (excluding) 4.4.293 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.5 up to (excluding) 4.9.291 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.10 up to (excluding) 4.14.256 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.15 up to (excluding) 4.19.218 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.20 up to (excluding) 5.4.160 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.5.0 up to (excluding) 5.10.80 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.11 up to (excluding) 5.14.19 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.15 up to (excluding) 5.15.3 -
CVE Modified by [email protected]
Feb. 12, 2023
Action Type Old Value New Value Removed CVSS V3.1 Red Hat, Inc. AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H Removed Reference https://access.redhat.com/errata/RHSA-2022:7444 [No Types Assigned] Removed Reference https://access.redhat.com/errata/RHSA-2022:7683 [No Types Assigned] Removed Reference https://access.redhat.com/errata/RHSA-2022:7933 [No Types Assigned] Removed Reference https://access.redhat.com/errata/RHSA-2022:8267 [No Types Assigned] Removed Reference https://access.redhat.com/security/cve/CVE-2021-3640 [No Types Assigned] Removed Reference https://lkml.org/lkml/2021/8/28/238 [No Types Assigned] Added CWE Red Hat, Inc. CWE-362 Added CWE Red Hat, Inc. CWE-416 -
CVE Modified by [email protected]
Feb. 02, 2023
Action Type Old Value New Value Added CVSS V3.1 Red Hat, Inc. AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H Added Reference https://access.redhat.com/security/cve/CVE-2021-3640 [No Types Assigned] Added Reference https://lkml.org/lkml/2021/8/28/238 [No Types Assigned] Added Reference https://access.redhat.com/errata/RHSA-2022:8267 [No Types Assigned] Added Reference https://access.redhat.com/errata/RHSA-2022:7683 [No Types Assigned] Added Reference https://access.redhat.com/errata/RHSA-2022:7444 [No Types Assigned] Added Reference https://access.redhat.com/errata/RHSA-2022:7933 [No Types Assigned] Removed CWE Red Hat, Inc. CWE-362 Removed CWE Red Hat, Inc. CWE-416 Removed CWE Reason CWE-362 / More specific CWE option available -
Reanalysis by [email protected]
Feb. 02, 2023
Action Type Old Value New Value Changed CPE Configuration OR *cpe:2.3:a:linux:linux_kernel:*:*:*:*:*:*:*:* versions up to (excluding) 5.15.3 OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions up to (excluding) 5.15.3 -
Modified Analysis by [email protected]
Apr. 27, 2022
Action Type Old Value New Value Changed Reference Type https://security.netapp.com/advisory/ntap-20220419-0003/ No Types Assigned https://security.netapp.com/advisory/ntap-20220419-0003/ Third Party Advisory Added CPE Configuration AND OR *cpe:2.3:o:netapp:h300s_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:netapp:h300s:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:netapp:h700s_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:netapp:h700s:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:netapp:h300e_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:netapp:h300e:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:netapp:h500e_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:netapp:h500e:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:netapp:h700e_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:netapp:h700e:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:netapp:h410s_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:netapp:h410s:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:netapp:h410c_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:netapp:h410c:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:netapp:h500s_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:netapp:h500s:-:*:*:*:*:*:*:* -
CVE Modified by [email protected]
Apr. 19, 2022
Action Type Old Value New Value Added Reference https://security.netapp.com/advisory/ntap-20220419-0003/ [No Types Assigned] -
Initial Analysis by [email protected]
Mar. 17, 2022
Action Type Old Value New Value Added CVSS V2 NIST (AV:L/AC:M/Au:N/C:C/I:C/A:C) Added CVSS V3.1 NIST AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H Changed Reference Type https://bugzilla.redhat.com/show_bug.cgi?id=1980646 No Types Assigned https://bugzilla.redhat.com/show_bug.cgi?id=1980646 Issue Tracking, Patch, Third Party Advisory Changed Reference Type https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/net/bluetooth/sco.c?h=v5.16&id=99c23da0eed4fd20cae8243f2b51e10e66aa0951 No Types Assigned 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 Changed Reference Type https://github.com/torvalds/linux/commit/99c23da0eed4fd20cae8243f2b51e10e66aa0951 No Types Assigned https://github.com/torvalds/linux/commit/99c23da0eed4fd20cae8243f2b51e10e66aa0951 Patch, Third Party Advisory Changed Reference Type https://lists.debian.org/debian-lts-announce/2022/03/msg00011.html No Types Assigned https://lists.debian.org/debian-lts-announce/2022/03/msg00011.html Mailing List, Third Party Advisory Changed Reference Type https://lists.debian.org/debian-lts-announce/2022/03/msg00012.html No Types Assigned https://lists.debian.org/debian-lts-announce/2022/03/msg00012.html Mailing List, Third Party Advisory Changed Reference Type https://ubuntu.com/security/CVE-2021-3640 No Types Assigned https://ubuntu.com/security/CVE-2021-3640 Patch, Third Party Advisory Changed Reference Type https://www.debian.org/security/2022/dsa-5096 No Types Assigned https://www.debian.org/security/2022/dsa-5096 Third Party Advisory Changed Reference Type https://www.openwall.com/lists/oss-security/2021/07/22/1 No Types Assigned https://www.openwall.com/lists/oss-security/2021/07/22/1 Exploit, Mailing List, Third Party Advisory Added CWE NIST CWE-416 Added CPE Configuration OR *cpe:2.3:a:linux:linux_kernel:*:*:*:*:*:*:*:* versions up to (excluding) 5.15.3 Added CPE Configuration OR *cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* Added CPE Configuration OR *cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:* Added CPE Configuration OR *cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:esm:*:*:* *cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:esm:*:*:* *cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:* *cpe:2.3:o:canonical:ubuntu_linux:20.04:*:*:*:lts:*:*:* *cpe:2.3:o:canonical:ubuntu_linux:21.10:*:*:*:*:*:*:* -
CVE Modified by [email protected]
Mar. 10, 2022
Action Type Old Value New Value Added Reference https://lists.debian.org/debian-lts-announce/2022/03/msg00012.html [No Types Assigned] Added Reference https://lists.debian.org/debian-lts-announce/2022/03/msg00011.html [No Types Assigned] Added Reference https://www.debian.org/security/2022/dsa-5096 [No Types Assigned]
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2021-3640 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2021-3640
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.04 }} 0.00%
score
0.05635
percentile