SARA / Free Tools / CVE / CVE-2022-33270

CVE-2022-33270 — Transient DOS due to time-of-check time-of-use race condition in Modem while pro

Transient DOS due to time-of-check time-of-use race condition in Modem while processing RRC Reconfiguration message.

CVSS

7.5 HIGH

EPSS

0.11% (top 71.00%)

CWE

CWE-367

Published

2023-04-04T04:46:34.926Z

Last modified

2024-08-03T08:01:20.521Z

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

01What is this vulnerability?

Transient DOS due to time-of-check time-of-use race condition in Modem while processing RRC Reconfiguration message.

Vendor	Product	Versions
Qualcomm, Inc.	Snapdragon	AR8035, FastConnect 6200, FastConnect 6700, FastConnect 6900, FastConnect 7800, QCA6391, QCA6595AU, QCA6696, QCA6698AQ, QCA8081, QCA8337, QCM6490, QCN6024, QCN9024, QCS6490, SD778G, SDX57M, SM7325P, Snapdragon 4 Gen 1 Mobile Platform, Snapdragon 480 5G Mobile Platform, Snapdragon 480+ 5G Mobile Platform (SM4350-AC), Snapdragon 695 5G Mobile Platform, Snapdragon 778G 5G Mobile Platform, Snapdragon 778G+ 5G Mobile Platform (SM7325-AE), Snapdragon 782G Mobile Platform (SM7325-AF), Snapdragon 8 Gen 1 Mobile Platform, Snapdragon 888 5G Mobile Platform, Snapdragon 888+ 5G Mobile Platform (SM8350-AC), Snapdragon Auto 5G Modem-RF, Snapdragon X65 5G Modem-RF System, Snapdragon X70 Modem-RF System, WCD9370, WCD9375, WCD9380, WCD9385, WCN3988, WSA8810, WSA8815, WSA8830, WSA8835

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

Patch to a fixed version listed in the vendor advisory (see references below).
Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
Hunt historical logs for exploitation indicators — see Detection signatures below.

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

www.qualcomm.com — https://www.qualcomm.com/company/product-security/bulletins/april-2023-bulletin

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