Snapdragon Compute, Snapdragon Connectivity…: Out-of-bounds Read
CVE-2022-33236 is a high-severity out-of-bounds read vulnerability in Snapdragon Compute, Snapdragon Connectivity, Snapdragon Mobile, 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 Compute, Snapdragon Connectivity, Snapdragon Mobile, Snapdragon Wired Infrastructure and Networking versions: AR8035; CSR8811; IPQ5010, 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 Compute, Snapdragon Connectivity, Snapdragon Mobile, 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 Compute, Snapdragon Connectivity, Snapdragon Mobile, Snapdragon Wired Infrastructure and Networking | AR8035; CSR8811; IPQ5010; IPQ5018; IPQ5028; IPQ6000; IPQ6010; IPQ6018; and 32 more ranges | Not stated |
| Qualcomm | Ar8035 Firmware | Not specified in the record | Not stated |
| Qualcomm | Csr8811 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 | 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 |
| Qualcomm | Ipq8078 Firmware | Not specified in the record | Not stated |
| Qualcomm | Ipq8078a Firmware | Not specified in the record | Not stated |
| Qualcomm | Ipq8173 Firmware | Not specified in the record | Not stated |
| Qualcomm | Ipq8174 Firmware | Not specified in the record | Not stated |
| Qualcomm | Ipq9008 Firmware | Not specified in the record | Not stated |
| Qualcomm | Qca4024 Firmware | Not specified in the record | Not stated |
| Qualcomm | Qca6390 Firmware | Not specified in the record | Not stated |
| Qualcomm | Qca6391 Firmware | Not specified in the record | Not stated |
| Qualcomm | Qca6426 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 buffer over-read in WLAN firmware while parsing cipher suite info attributes. in Snapdragon Compute, Snapdragon Connectivity, Snapdragon Mobile, Snapdragon Wired Infrastructure and Networking
Source: the CVE record as published by its numbering authority, via NVD and CVE.org.
The underlying weakness: Out-of-bounds Read
The product reads data past the end, or before the beginning, of the intended buffer.
How developers prevent this class of flaw
- Use a language that provides appropriate memory abstractions.
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
Recent Out-of-bounds Read vulnerabilities
- 7.8 High severity
- 7.5 High severity
- 7.1 High severity
- 8.1 High severity
- 7.4 High severity
- 9.1 Critical severity
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