CyberSecBulletin
CVE-2022-25741NVD status: Modified

Snapdragon Auto, Snapdragon Compute…: NULL Pointer Dereference

Published Updated By the CyberSecBulletin desk

CVE-2022-25741 is a high-severity NULL pointer dereference vulnerability in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Wearables from Qualcomm, with a CVSS 3.1 base score of 7.5 out of 10. It can be exploited remotely over the network by an unauthenticated attacker, without any action from a user. Affected Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Wearables versions: AQT1000; AR8035; CSRA6620, and others listed below. The record does not name a fixed version, so check the vendor advisory. There is no confirmed exploitation so far. EPSS estimates a 0.45% chance of exploitation within 30 days, which is low compared with other CVEs.

Next patch cycle

High severity with no evidence of exploitation so far.

What to do

  1. Check which version of Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Wearables you run against the affected versions below, and install the vendor's latest release.
  2. Read the advisory on qualcomm.com for workarounds and exact fixed builds.
  3. Until you can update, restrict network access to the affected service so it is not reachable from untrusted networks.

Affected products and versions

VendorProductAffected versionsFixed in
QualcommSnapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon WearablesAQT1000; AR8035; CSRA6620; CSRA6640; CSRB31024; QAM8295P; QCA6175A; QCA6390; and 32 more rangesNot stated
QualcommAqt1000 FirmwareNot specified in the recordNot stated
QualcommAr8035 FirmwareNot specified in the recordNot stated
QualcommCsra6620 FirmwareNot specified in the recordNot stated
QualcommCsra6640 FirmwareNot specified in the recordNot stated
QualcommCsrb31024 FirmwareNot specified in the recordNot stated
QualcommQam8295p FirmwareNot specified in the recordNot stated
QualcommQca6175a FirmwareNot specified in the recordNot stated
QualcommQca6390 FirmwareNot specified in the recordNot stated
QualcommQca6391 FirmwareNot specified in the recordNot stated
QualcommQca6420 FirmwareNot specified in the recordNot stated
QualcommQca6421 FirmwareNot specified in the recordNot stated
QualcommQca6426 FirmwareNot specified in the recordNot stated
QualcommQca6430 FirmwareNot specified in the recordNot stated
QualcommQca6431 FirmwareNot specified in the recordNot stated
QualcommQca6436 FirmwareNot specified in the recordNot stated
QualcommQca6554a FirmwareNot specified in the recordNot stated
QualcommQca6564au FirmwareNot specified in the recordNot stated
QualcommQca6574 FirmwareNot specified in the recordNot stated
QualcommQca6574a FirmwareNot specified in the recordNot stated
QualcommQca6574au FirmwareNot specified in the recordNot stated
QualcommQca6584au FirmwareNot specified in the recordNot stated
QualcommQca6595 FirmwareNot specified in the recordNot stated
QualcommQca6595au FirmwareNot specified in the recordNot stated
QualcommQca6696 FirmwareNot specified in the recordNot stated

Version data comes from the organisation that assigned the CVE; 35 further products are omitted here. Confirm against the vendor advisory before deciding you are unaffected.

How the severity score breaks down

Attack vector
NetworkCan be exploited remotely over a network, including the internet.
Attack complexity
LowNo special conditions are needed; the attack works reliably.
Privileges required
NoneNo account or login is needed.
User interaction
NoneNo action by a victim is required.
Scope
UnchangedImpact stays within the vulnerable component.
Confidentiality
NoneNo data is disclosed.
Integrity
NoneNothing can be modified.
Availability
HighThe component can be taken down completely.

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H. Scored by NVD.

Scoring systemScoreSeverityScored by
CVSS 3.17.5HighCNA (qualcomm.com)
CVSS 3.17.5HighNVD

Official description

Denial of service in WLAN due to potential null pointer dereference while accessing the memory location in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Wearables

Source: the CVE record as published by its numbering authority, via NVD and CVE.org.

The underlying weakness: NULL Pointer Dereference

The product dereferences a pointer that it expects to be valid but is NULL.

How developers prevent this class of flaw

  • For any pointers that could have been modified or provided from a function that can return NULL, check the pointer for NULL before use. When working with a multithreaded or otherwise asynchronous environment, ensure that proper locking APIs are used to lock before the check, and unlock when it has finished.
  • Select a programming language that is not susceptible to these issues.
  • Check the results of all functions that return a value and verify that the value is non-null before acting upon it.

More NULL Pointer Dereference vulnerabilities (CWE-476)

Timeline

  1. CVE record published.
  2. CISA published its SSVC assessment (exploitation: none, automatable: yes, technical impact: partial).
  3. Record last changed materially (score, affected products, status or references).

References

Other vulnerabilities in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Wearables

All Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Wearables vulnerabilities

Recent NULL Pointer Dereference vulnerabilities

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