DMA Device Enabled Too Early in Boot Phase
CWE-1190
The product enables a Direct Memory Access (DMA) capable device before the security configuration settings are established, which allows an attacker to extract data from or gain privileges on the product.
Several virtualization-based mitigations have been introduced to thwart DMA attacks. These are usually configured/setup during boot time. However, certain IPs that are powered up before boot is complete (known as early boot IPs) may be DMA capable. Such IPs, if not trusted, could launch DMA attacks and gain access to assets that should otherwise be protected.
We track 2 vulnerabilities of this type. 100% are rated high or critical, and the average CVSS score is 7.5.
How this weakness is prevented
- Architecture and Design: Utilize an IOMMU to orchestrate IO access from the start of the boot process.
Latest DMA Device Enabled Too Early in Boot Phase vulnerabilities
- 7.8 High severity
Android: Out-of-bounds Write
In multiple functions of rw_t3t.cc, there is a possible out of bounds write due to an integer overflow. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.
- 7.2 High severity
CPG BIOS: DMA Device Enabled Too Early in Boot Phase
Select Dell Client Commercial and Consumer platforms contain a pre-boot direct memory access (DMA) vulnerability. An authenticated attacker with physical access to the system may potentially exploit this vulnerability in order to execute arbitrary code on the