CyberSecBulletin
CVE-2022-22058NVD status: Modified

Snapdragon Auto, Snapdragon Compute…: Use After Free

Published Updated By the CyberSecBulletin desk

CVE-2022-22058 is a high-severity use after free vulnerability in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer Electronics Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Voice & Music, Snapdragon Wearables 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. There is no confirmed exploitation so far. EPSS estimates a 0.16% 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 Electronics Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Voice & Music, 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.

Affected products and versions

VendorProductAffected versionsFixed in
QualcommSnapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer Electronics Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Voice & Music, Snapdragon WearablesNot specified in the recordNot stated
QualcommApq8009 FirmwareNot specified in the recordNot stated
QualcommApq8009w FirmwareNot specified in the recordNot stated
QualcommApq8017 FirmwareNot specified in the recordNot stated
QualcommApq8053 FirmwareNot specified in the recordNot stated
QualcommApq8096au FirmwareNot specified in the recordNot stated
QualcommAqt1000 FirmwareNot specified in the recordNot stated
QualcommCsrb31024 FirmwareNot specified in the recordNot stated
QualcommMdm9150 FirmwareNot specified in the recordNot stated
QualcommMdm9206 FirmwareNot specified in the recordNot stated
QualcommMdm9250 FirmwareNot specified in the recordNot stated
QualcommMdm9607 FirmwareNot specified in the recordNot stated
QualcommMdm9626 FirmwareNot specified in the recordNot stated
QualcommMdm9628 FirmwareNot specified in the recordNot stated
QualcommMdm9640 FirmwareNot specified in the recordNot stated
QualcommMdm9650 FirmwareNot specified in the recordNot stated
QualcommMsm8909w FirmwareNot specified in the recordNot stated
QualcommMsm8917 FirmwareNot specified in the recordNot stated
QualcommMsm8937 FirmwareNot specified in the recordNot stated
QualcommMsm8953 FirmwareNot specified in the recordNot stated
QualcommMsm8996au FirmwareNot specified in the recordNot stated
QualcommPm8937 FirmwareNot specified in the recordNot stated
QualcommQca4020 FirmwareNot specified in the recordNot stated
QualcommQca6174a FirmwareNot specified in the recordNot stated
QualcommQca6175a 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 3.18.4HighCNA (qualcomm.com)
CVSS 3.17.8HighNVD

Official description

Memory corruption due to use after free issue in kernel while processing ION handles in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer Electronics Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Voice & Music, Snapdragon Wearables

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 Connectivity, Snapdragon Consumer Electronics Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Voice & Music, Snapdragon Wearables

All Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer Electronics Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Voice & Music, Snapdragon Wearables vulnerabilities

Recent Use After Free vulnerabilities

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