Snapdragon Auto, Snapdragon Compute…: Loop with Unreachable Exit Condition
CVE-2022-33239 is a high-severity loop with unreachable exit condition 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, Snapdragon Wired Infrastructure and Networking 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 Electronics Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Voice & Music, Snapdragon Wearables, Snapdragon Wired Infrastructure and Networking versions: APQ8009; APQ8017; APQ8096AU, 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.
High severity with no evidence of exploitation so far.
What to do
- 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, Snapdragon Wired Infrastructure and Networking you run against the affected versions below, and install the vendor's latest release.
- Read the advisory on qualcomm.com for workarounds and exact fixed builds.
- Until you can update, restrict network access to the affected service so it is not reachable from untrusted networks.
Affected products and versions
| Vendor | Product | Affected versions | Fixed in |
|---|---|---|---|
| Qualcomm | Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer Electronics Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Voice & Music, Snapdragon Wearables, Snapdragon Wired Infrastructure and Networking | APQ8009; APQ8017; APQ8096AU; AQT1000; AR8031; AR8035; CSR8811; CSRA6620; and 32 more ranges | Not stated |
| Qualcomm | Apq8009 Firmware | Not specified in the record | Not stated |
| Qualcomm | Apq8017 Firmware | Not specified in the record | Not stated |
| Qualcomm | Apq8096au Firmware | Not specified in the record | Not stated |
| Qualcomm | Aqt1000 Firmware | Not specified in the record | Not stated |
| Qualcomm | Ar8031 Firmware | Not specified in the record | Not stated |
| Qualcomm | Ar8035 Firmware | Not specified in the record | Not stated |
| Qualcomm | Csr8811 Firmware | Not specified in the record | Not stated |
| Qualcomm | Csra6620 Firmware | Not specified in the record | Not stated |
| Qualcomm | Csra6640 Firmware | Not specified in the record | Not stated |
| Qualcomm | Csrb31024 Firmware | Not specified in the record | Not stated |
| Qualcomm | Ipq5010 Firmware | Not specified in the record | Not stated |
| Qualcomm | Ipq5018 Firmware | Not specified in the record | Not stated |
| Qualcomm | Ipq5028 Firmware | Not specified in the record | Not stated |
| Qualcomm | Ipq6000 Firmware | Not specified in the record | Not stated |
| Qualcomm | Ipq6010 Firmware | Not specified in the record | Not stated |
| Qualcomm | Ipq6018 Firmware | Not specified in the record | Not stated |
| Qualcomm | Ipq6028 Firmware | Not specified in the record | Not stated |
| Qualcomm | Ipq8070 Firmware | Not specified in the record | Not stated |
| Qualcomm | Ipq8070a Firmware | Not specified in the record | Not stated |
| Qualcomm | Ipq8071a Firmware | Not specified in the record | Not stated |
| Qualcomm | Ipq8072a Firmware | Not specified in the record | Not stated |
| Qualcomm | Ipq8074a Firmware | Not specified in the record | Not stated |
| Qualcomm | Ipq8076 Firmware | Not specified in the record | Not stated |
| Qualcomm | Ipq8076a Firmware | Not specified in the record | Not 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 system | Score | Severity | Scored by |
|---|---|---|---|
| CVSS 3.1 | 7.5 | High | CNA (qualcomm.com) |
| CVSS 3.1 | 7.5 | High | NVD |
Official description
Transient DOS due to loop with unreachable exit condition in WLAN firmware while parsing IPV6 extension header. in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer Electronics Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Voice & Music, 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: Loop with Unreachable Exit Condition
The product contains an iteration or loop with an exit condition that cannot be reached, i.e., an infinite loop.
More Loop with Unreachable Exit Condition vulnerabilities (CWE-835)
Timeline
- CVE record published.
- CISA published its SSVC assessment (exploitation: none, automatable: yes, technical impact: partial).
- 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, Snapdragon Wired Infrastructure and Networking
- 7.5 High severity
- 7.5 High severity
- 7.5 High severity
- 7.5 High severity
- 9.8 Critical severity
- 7.5 High severity
Recent Loop with Unreachable Exit Condition vulnerabilities
- 7.5 High severity
- 7.5 High severity
- 7.5 High severity
- 7.5 High severity
- 7.5 High severity
- 7.5 High severity
Spotted an error? Tell us.