CyberSecBulletin
CVE-2022-25677NVD status: Modified

Snapdragon Auto, Snapdragon Compute…: Use After Free

Published Updated By the CyberSecBulletin desk

CVE-2022-25677 is a high-severity use after free vulnerability in Snapdragon Auto, Snapdragon Compute, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Wearables, Snapdragon Wired Infrastructure and Networking from Qualcomm, with a CVSS 3.1 base score of 7.8 out of 10. It can be exploited with local access to the system by an attacker with a low-privileged account, without any action from a user. Affected Snapdragon Auto, Snapdragon Compute, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Wearables, Snapdragon Wired Infrastructure and Networking versions: APQ8096AU; AQT1000; AR9380, 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 0.13% 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 Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Wearables, Snapdragon Wired Infrastructure and Networking 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.

Affected products and versions

VendorProductAffected versionsFixed in
QualcommSnapdragon Auto, Snapdragon Compute, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Wearables, Snapdragon Wired Infrastructure and NetworkingAPQ8096AU; AQT1000; AR9380; CSR8811; IPQ4018; IPQ4019; IPQ4028; IPQ4029; and 32 more rangesNot stated
QualcommApq8096au FirmwareNot specified in the recordNot stated
QualcommAqt1000 FirmwareNot specified in the recordNot stated
QualcommAr9380 FirmwareNot specified in the recordNot stated
QualcommCsr8811 FirmwareNot specified in the recordNot stated
QualcommIpq4018 FirmwareNot specified in the recordNot stated
QualcommIpq4019 FirmwareNot specified in the recordNot stated
QualcommIpq4028 FirmwareNot specified in the recordNot stated
QualcommIpq4029 FirmwareNot specified in the recordNot stated
QualcommIpq5010 FirmwareNot specified in the recordNot stated
QualcommIpq5018 FirmwareNot specified in the recordNot stated
QualcommIpq5028 FirmwareNot specified in the recordNot stated
QualcommIpq6000 FirmwareNot specified in the recordNot stated
QualcommIpq6010 FirmwareNot specified in the recordNot stated
QualcommIpq6018 FirmwareNot specified in the recordNot stated
QualcommIpq6028 FirmwareNot specified in the recordNot stated
QualcommIpq8064 FirmwareNot specified in the recordNot stated
QualcommIpq8065 FirmwareNot specified in the recordNot stated
QualcommIpq8068 FirmwareNot specified in the recordNot stated
QualcommIpq8070 FirmwareNot specified in the recordNot stated
QualcommIpq8070a FirmwareNot specified in the recordNot stated
QualcommIpq8071a FirmwareNot specified in the recordNot stated
QualcommIpq8072a FirmwareNot specified in the recordNot stated
QualcommIpq8074a FirmwareNot specified in the recordNot stated
QualcommIpq8076 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
LocalThe attacker needs local access or must trick a user into running something.
Attack complexity
LowNo special conditions are needed; the attack works reliably.
Privileges required
LowA basic user account is enough.
User interaction
NoneNo action by a victim is required.
Scope
UnchangedImpact stays within the vulnerable component.
Confidentiality
HighAll data handled by the component can be read.
Integrity
HighData or code can be modified at will.
Availability
HighThe component can be taken down completely.

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

Scoring systemScoreSeverityScored by
CVSS 3.16.7MediumCNA (qualcomm.com)
CVSS 3.17.8HighNVD

Official description

Memory corruption in diag due to use after free while processing dci packet in Snapdragon Auto, Snapdragon Compute, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Wearables, Snapdragon Wired Infrastructure and Networking

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

The underlying weakness: Use After Free

The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory belongs to the code that operates on the new pointer.

How developers prevent this class of flaw

  • Choose a language that provides automatic memory management.
  • When freeing pointers, be sure to set them to NULL once they are freed. However, the utilization of multiple or complex data structures may lower the usefulness of this strategy.

More Use After Free vulnerabilities (CWE-416)

Timeline

  1. CVE record published.
  2. CISA published its SSVC assessment (exploitation: none, automatable: no, technical impact: total).
  3. Record last changed materially (score, affected products, status or references).

References

Other vulnerabilities in Snapdragon Auto, Snapdragon Compute, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Wearables, Snapdragon Wired Infrastructure and Networking

All Snapdragon Auto, Snapdragon Compute, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Wearables, Snapdragon Wired Infrastructure and Networking vulnerabilities

Recent Use After Free vulnerabilities

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