6.5
MEDIUM
CVE-2021-1956
Qualcomm Snapdragon L2CAP Channel ID ASB-U Packet Handling Vulnerability
Description

Improper handling of ASB-U packet with L2CAP channel ID by slave host can lead to interference with piconet in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer Electronics Connectivity, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Voice & Music

INFO

Published Date :

Sept. 9, 2021, 8:15 a.m.

Last Modified :

Nov. 21, 2024, 5:45 a.m.

Source :

[email protected]

Remotely Exploitable :

No

Impact Score :

3.6

Exploitability Score :

2.8
Affected Products

The following products are affected by CVE-2021-1956 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.

ID Vendor Product Action
1 Qualcomm aqt1000_firmware
2 Qualcomm qca6390_firmware
3 Qualcomm qca6391_firmware
4 Qualcomm qca6420_firmware
5 Qualcomm qca6430_firmware
6 Qualcomm qca6574au_firmware
7 Qualcomm qca6595au_firmware
8 Qualcomm qca6696_firmware
9 Qualcomm sa6145p_firmware
10 Qualcomm sa6150p_firmware
11 Qualcomm sa6155p_firmware
12 Qualcomm sa8145p_firmware
13 Qualcomm sa8150p_firmware
14 Qualcomm sa8155p_firmware
15 Qualcomm sa8195p_firmware
16 Qualcomm wcd9341_firmware
17 Qualcomm wcn3998_firmware
18 Qualcomm wsa8810_firmware
19 Qualcomm wsa8815_firmware
20 Qualcomm ar8035_firmware
21 Qualcomm csrb31024_firmware
22 Qualcomm qca6564au_firmware
23 Qualcomm qca6574_firmware
24 Qualcomm qca6574a_firmware
25 Qualcomm qca6584au_firmware
26 Qualcomm qca6595_firmware
27 Qualcomm qca8337_firmware
28 Qualcomm sa6155_firmware
29 Qualcomm sa8155_firmware
30 Qualcomm sc8180x\+sdx55_firmware
31 Qualcomm sd_8cx_firmware
32 Qualcomm sdx55_firmware
33 Qualcomm wcd9340_firmware
34 Qualcomm wcd9360_firmware
35 Qualcomm sa515m_firmware
36 Qualcomm qcx315_firmware
37 Qualcomm qca6564a_firmware
38 Qualcomm sa415m_firmware
39 Qualcomm qcn7606_firmware
40 Qualcomm qcn7605_firmware
41 Qualcomm qca6175a_firmware
42 Qualcomm sd_8c_firmware
43 Qualcomm aqt1000
44 Qualcomm ar8035
45 Qualcomm csrb31024
46 Qualcomm qca6175a
47 Qualcomm qca6390
48 Qualcomm qca6391
49 Qualcomm qca6420
50 Qualcomm qca6430
51 Qualcomm qca6564a
52 Qualcomm qca6564au
53 Qualcomm qca6574
54 Qualcomm qca6574a
55 Qualcomm qca6574au
56 Qualcomm qca6584au
57 Qualcomm qca6595
58 Qualcomm qca6595au
59 Qualcomm qca6696
60 Qualcomm sa415m
61 Qualcomm sa6145p
62 Qualcomm sa6150p
63 Qualcomm sa6155
64 Qualcomm sa6155p
65 Qualcomm sa8150p
66 Qualcomm sa8155
67 Qualcomm sa8155p
68 Qualcomm sa8195p
69 Qualcomm sc8180x\+sdx55
70 Qualcomm sd_8c
71 Qualcomm sd_8cx
72 Qualcomm sdx55
73 Qualcomm wcd9340
74 Qualcomm wcd9341
75 Qualcomm wcd9360
76 Qualcomm wcn3998
77 Qualcomm wsa8810
78 Qualcomm wsa8815
79 Qualcomm qca8337
80 Qualcomm sa515m
81 Qualcomm qcn7605
82 Qualcomm qcn7606
83 Qualcomm sa8145p
84 Qualcomm qcx315
: Total Affected Vendor : 1 | Products : 84
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-2021-1956.

URL Resource
https://www.qualcomm.com/company/product-security/bulletins/september-2021-bulletin Vendor Advisory
https://www.qualcomm.com/company/product-security/bulletins/september-2021-bulletin Vendor 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).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2021-1956 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2021-1956 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 af854a3a-2127-422b-91ae-364da2661108

    Nov. 21, 2024

    Action Type Old Value New Value
    Added Reference https://www.qualcomm.com/company/product-security/bulletins/september-2021-bulletin
  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • Initial Analysis by [email protected]

    Sep. 22, 2021

    Action Type Old Value New Value
    Added CVSS V2 NIST (AV:A/AC:L/Au:N/C:N/I:N/A:P)
    Added CVSS V3.1 NIST AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
    Changed Reference Type https://www.qualcomm.com/company/product-security/bulletins/september-2021-bulletin No Types Assigned https://www.qualcomm.com/company/product-security/bulletins/september-2021-bulletin Vendor Advisory
    Added CWE NIST NVD-CWE-Other
    Added CPE Configuration AND OR *cpe:2.3:o:qualcomm:aqt1000_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:qualcomm:aqt1000:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:qualcomm:ar8035_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:qualcomm:ar8035:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:qualcomm:csrb31024_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:qualcomm:csrb31024:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:qualcomm:qca6175a_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:qualcomm:qca6175a:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:qualcomm:qca6390_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:qualcomm:qca6390:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:qualcomm:qca6391_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:qualcomm:qca6391:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:qualcomm:qca6420_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:qualcomm:qca6420:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:qualcomm:qca6430_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:qualcomm:qca6430:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:qualcomm:qca6564a_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:qualcomm:qca6564a:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:qualcomm:qca6564au_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:qualcomm:qca6564au:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:qualcomm:qca6574_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:qualcomm:qca6574:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:qualcomm:qca6574a_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:qualcomm:qca6574a:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:qualcomm:qca6574au_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:qualcomm:qca6574au:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:qualcomm:qca6584au_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:qualcomm:qca6584au:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:qualcomm:qca6595_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:qualcomm:qca6595:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:qualcomm:qca6595au_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:qualcomm:qca6595au:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:qualcomm:qca6696_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:qualcomm:qca6696:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:qualcomm:qca8337_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:qualcomm:qca8337:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:qualcomm:qcn7605_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:qualcomm:qcn7605:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:qualcomm:qcn7606_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:qualcomm:qcn7606:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:qualcomm:qcx315_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:qualcomm:qcx315:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:qualcomm:sa415m_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:qualcomm:sa415m:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:qualcomm:sa515m_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:qualcomm:sa515m:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:qualcomm:sa6145p_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:qualcomm:sa6145p:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:qualcomm:sa6150p_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:qualcomm:sa6150p:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:qualcomm:sa6155_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:qualcomm:sa6155:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:qualcomm:sa6155p_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:qualcomm:sa6155p:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:qualcomm:sa8145p_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:qualcomm:sa8145p:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:qualcomm:sa8150p_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:qualcomm:sa8150p:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:qualcomm:sa8155_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:qualcomm:sa8155:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:qualcomm:sa8155p_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:qualcomm:sa8155p:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:qualcomm:sa8195p_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:qualcomm:sa8195p:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:qualcomm:sc8180x\+sdx55_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:qualcomm:sc8180x\+sdx55:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:qualcomm:sd_8c_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:qualcomm:sd_8c:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:qualcomm:sd_8cx_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:qualcomm:sd_8cx:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:qualcomm:sdx55_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:qualcomm:sdx55:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:qualcomm:wcd9340_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:qualcomm:wcd9340:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:qualcomm:wcd9341_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:qualcomm:wcd9341:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:qualcomm:wcd9360_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:qualcomm:wcd9360:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:qualcomm:wcn3998_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:qualcomm:wcn3998:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:qualcomm:wsa8810_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:qualcomm:wsa8810:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:qualcomm:wsa8815_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:qualcomm:wsa8815:-:*:*:*:*:*:*:*
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2021-1956 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-2021-1956 weaknesses.

Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

0.06 }} 0.01%

score

0.24677

percentile

CVSS31 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
: