Out-of-bounds Read Affecting zephyrproject-rtos/zephyr package, versions [,4.1.0-rc1)
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Test your applications- Snyk IDSNYK-UNMANAGED-ZEPHYRPROJECTRTOSZEPHYR-8747574
- published26 Feb 2025
- disclosed25 Feb 2025
- creditAmPaschal
Introduced: 25 Feb 2025
NewCVE-2025-1673 (opens in a new tab)Common Vulnerabilities and Exposures (CVE) are common identifiers for publicly known security vulnerabilities
Common Weakness Enumeration (CWE) is a category system for software weaknesses
How to fix?
Upgrade zephyrproject-rtos/zephyr to version 4.1.0-rc1 or higher.
Overview
Affected versions of this package are vulnerable to Out-of-bounds Read in the dns_validate_msg() function in dns/resolve.c. An attacker can cause a crash or incorrect computation by sending a packet with DNS ID of 0, QD count of 1, and a missing payload.
PoC
{0, 0, 128, 1, 0, 1, 0, 0, 0, 0, 0, 0};