External risk intelligence

Qualcomm Chipsets: Memory Corruption Risk in Graphics Linux

CVE advisoryKnown Exploit

CVE-2023-33107

A memory corruption vulnerability in Graphics Linux impacts various Qualcomm chipsets. This could allow unauthorized access to sensitive data or system control. Organizations should consult vendor advisories for remediation guidance.

1Halo Surface Signal

Integer Overflow

Qualcomm 315 5g Iot Modem Firmware

External exposure likelihood

Halo Surface Signal score for CVE-2023-33107

The vulnerability involves memory corruption within a device driver's IOCTL call for Graphics Linux. Such interfaces are local-only and require privilege-level access to the host kernel, meaning they are not reachable from the public internet.

Horizon Alert

Summary of the vulnerability and why it matters

A memory corruption vulnerability exists within the Graphics Linux component of multiple Qualcomm chipsets. This flaw occurs when assigning a shared virtual memory region during an IOCTL call. The impact of this vulnerability could allow for elevated privileges or unauthorized access to sensitive data within affected systems.

  • Vulnerable component: Graphics Linux
  • Core weakness: Memory corruption
  • Main business impact: Elevated privileges

Attack Path

How an attacker could exploit the issue

This vulnerability allows for memory corruption within the Graphics Linux component when a shared virtual memory region is assigned during an IOCTL call. This could enable an attacker to gain elevated privileges or execute arbitrary code on the affected system. The impact could include unauthorized access to sensitive data, disruption of services, or complete system compromise.

  • Requires local system access.
  • Attacker triggers memory corruption.
  • Results in control or impact.

Live Threat

Current exploitation, exposure, and threat context

A memory corruption vulnerability exists in Graphics Linux, specifically during the assignment of a shared virtual memory region via an IOCTL call. This type of vulnerability could potentially allow for unauthorized system access and manipulation. The nature of the attack vector suggests that an attacker would need to operate with some level of local privilege to exploit this.

  • Likely attacker skill: Low
  • Required access: Local privilege
  • Business risk: Moderate to high

Priority actions

Operational Fix

Recommended remediation, mitigation, and detection steps

This vulnerability involves memory corruption within a device driver's IOCTL call for Graphics Linux. The exposure classification is internal, meaning it requires local access to the host kernel and is not reachable from the public internet. Affected organizations should prioritize identifying all instances of the affected Qualcomm chipsets within their environment.

  • Find affected assets.
  • Reduce exposure or isolate risk.
  • Fix, verify, and monitor.

Frequently asked questions

What is the Qualcomm 315 5G IoT Modem Firmware?

The Qualcomm 315 5G IoT Modem Firmware is a software component associated with Qualcomm chipsets, specifically designed for Internet of Things (IoT) devices that utilize 5G networks. It enables connectivity and processing for these devices.

What is CVE-2023-33107 and its weakness class?

CVE-2023-33107 is a high-severity vulnerability classified as CWE-190, an integer overflow. It involves memory corruption in the Graphics Linux component during a specific IOCTL call related to shared virtual memory region assignment.

How is the CVE-2023-33107 vulnerability triggered?

This vulnerability is triggered by a local attacker through an IOCTL call within the Graphics Linux component when assigning a shared virtual memory region. The exploit requires local system access but does not need privileges or user interaction, indicating low attack complexity.

What is the relevance of CVE-2023-33107 for device security?

CVE-2023-33107 is significant because it affects numerous Qualcomm chipsets, including the 315 5G IoT Modem firmware. It allows for memory corruption, potentially leading to unauthorized access and system compromise. The Halo Surface Signal indicates this is very unlikely to be exposed externally due to its local access requirements.

What are the recommended actions for CVE-2023-33107?

The recommended remediation for CVE-2023-33107 is to apply patches and mitigations provided by Qualcomm. If no patch is available, discontinuing the use of the affected product is advised. Prompt patching is critical as it has been observed in targeted exploitation.

References