CVE-2021-47602
"Linux kernel mac80211 QoS Data Frame Admission Control Uninitialized Value"
Description
In the Linux kernel, the following vulnerability has been resolved: mac80211: track only QoS data frames for admission control For admission control, obviously all of that only works for QoS data frames, otherwise we cannot even access the QoS field in the header. Syzbot reported (see below) an uninitialized value here due to a status of a non-QoS nullfunc packet, which isn't even long enough to contain the QoS header. Fix this to only do anything for QoS data packets.
INFO
Published Date :
June 19, 2024, 3:15 p.m.
Last Modified :
Nov. 21, 2024, 6:36 a.m.
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Remotely Exploitable :
No
Impact Score :
3.6
Exploitability Score :
1.8
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-2021-47602.
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).
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The following list is the news that have been mention
CVE-2021-47602 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-47602 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.
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CVE Modified by af854a3a-2127-422b-91ae-364da2661108
Nov. 21, 2024
Action Type Old Value New Value Added Reference https://git.kernel.org/stable/c/42d08e97b196479f593499e887a9ab81446a34b9 Added Reference https://git.kernel.org/stable/c/46b9e29db2012a4d2a40a26101862e002ccf387b Added Reference https://git.kernel.org/stable/c/69f054d6642c8f6173724ce17e7ee3ff66b8f682 Added Reference https://git.kernel.org/stable/c/d5e568c3a4ec2ddd23e7dc5ad5b0c64e4f22981a Added Reference https://git.kernel.org/stable/c/eed897a22230e3231a740eddd7d6d95ba476625f -
Initial Analysis by [email protected]
Oct. 31, 2024
Action Type Old Value New Value Added CVSS V3.1 NIST AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Changed Reference Type https://git.kernel.org/stable/c/42d08e97b196479f593499e887a9ab81446a34b9 No Types Assigned https://git.kernel.org/stable/c/42d08e97b196479f593499e887a9ab81446a34b9 Patch Changed Reference Type https://git.kernel.org/stable/c/46b9e29db2012a4d2a40a26101862e002ccf387b No Types Assigned https://git.kernel.org/stable/c/46b9e29db2012a4d2a40a26101862e002ccf387b Patch Changed Reference Type https://git.kernel.org/stable/c/69f054d6642c8f6173724ce17e7ee3ff66b8f682 No Types Assigned https://git.kernel.org/stable/c/69f054d6642c8f6173724ce17e7ee3ff66b8f682 Patch Changed Reference Type https://git.kernel.org/stable/c/d5e568c3a4ec2ddd23e7dc5ad5b0c64e4f22981a No Types Assigned https://git.kernel.org/stable/c/d5e568c3a4ec2ddd23e7dc5ad5b0c64e4f22981a Patch Changed Reference Type https://git.kernel.org/stable/c/eed897a22230e3231a740eddd7d6d95ba476625f No Types Assigned https://git.kernel.org/stable/c/eed897a22230e3231a740eddd7d6d95ba476625f Patch Added CWE NIST CWE-824 Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 3.19 up to (excluding) 4.19.222 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.20 up to (excluding) 5.4.168 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.5 up to (excluding) 5.10.88 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.11 up to (excluding) 5.15.11 *cpe:2.3:o:linux:linux_kernel:5.16:rc1:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:5.16:rc2:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:5.16:rc3:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:5.16:rc4:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:5.16:rc5:*:*:*:*:*:* -
CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Jun. 19, 2024
Action Type Old Value New Value Added Description In the Linux kernel, the following vulnerability has been resolved: mac80211: track only QoS data frames for admission control For admission control, obviously all of that only works for QoS data frames, otherwise we cannot even access the QoS field in the header. Syzbot reported (see below) an uninitialized value here due to a status of a non-QoS nullfunc packet, which isn't even long enough to contain the QoS header. Fix this to only do anything for QoS data packets. Added Reference kernel.org https://git.kernel.org/stable/c/69f054d6642c8f6173724ce17e7ee3ff66b8f682 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/46b9e29db2012a4d2a40a26101862e002ccf387b [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/eed897a22230e3231a740eddd7d6d95ba476625f [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/42d08e97b196479f593499e887a9ab81446a34b9 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/d5e568c3a4ec2ddd23e7dc5ad5b0c64e4f22981a [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-2021-47602 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-2021-47602
weaknesses.