Out-of-bounds Read Affecting zephyrproject-rtos/zephyr package, versions [,4.1.0-rc1)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-UNMANAGED-ZEPHYRPROJECTRTOSZEPHYR-8747574
- published26 Feb 2025
- disclosed25 Feb 2025
- creditAmPaschal
Introduced: 25 Feb 2025
CVE-2025-1673 (opens in a new tab)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};