CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
AI Score
Confidence
High
EPSS
Percentile
29.5%
Azure RTOS FileX is a FAT-compatible file system that’s fully integrated with Azure RTOS ThreadX. In versions before 6.2.0, the Fault Tolerant feature of Azure RTOS FileX includes integer under and overflows which may be exploited to achieve buffer overflow and modify memory contents. When a valid log file with correct ID and checksum is detected by the _fx_fault_tolerant_enable
function an attempt to recover the previous failed write operation is taken by call of _fx_fault_tolerant_apply_logs
. This function iterates through the log entries and performs required recovery operations. When properly crafted a log including entries of type FX_FAULT_TOLERANT_DIR_LOG_TYPE
may be utilized to introduce unexpected behavior. This issue has been patched in version 6.2.0. A workaround to fix line 218 in fx_fault_tolerant_apply_logs.c is documented in the GHSA.
Vendor | Product | Version | CPE |
---|---|---|---|
microsoft | azure_rtos_filex | * | cpe:2.3:o:microsoft:azure_rtos_filex:*:*:*:*:*:*:*:* |
[
{
"vendor": "azure-rtos",
"product": "filex",
"versions": [
{
"version": "< 6.2.0",
"status": "affected"
}
]
}
]
More
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
AI Score
Confidence
High
EPSS
Percentile
29.5%