CVE-2024-7490

Remote Code Execution in Advanced Software Framework DHCP server

Description

Improper Input Validation vulnerability in Microchip Techology Advanced Software Framework example DHCP server can cause remote code execution through a buffer overflow. This vulnerability is associated with program files tinydhcpserver.C and program routines lwip_dhcp_find_option. This issue affects Advanced Software Framework: through 3.52.0.2574. ASF is no longer being supported. Apply provided workaround or migrate to an actively maintained framework.

Remediation

Solution:

  • ASF is no longer being supported. Apply provided workaround or migrate to an actively maintained framework.

Workaround:

  • The issue can be mitigated by adding a check to the size variable after the call [1] to pbuf_get_at on line 127 [1]. If the size variable is not 4, then the function should cease processing and return. The lwip_dhcp_find_option function is only used to find this one option. [1] https://github.com/alfred-ai/microchip-asf/blob/bf5205e36a265b867d531647ffbf2de5e287853a/thirdparty/lwip/lwip-tinyservices/tinydhcpserver.c#L127

Category

9.5
CVSS
Severity: Critical
CVSS 4.0 •
CVSS 3.1 •
EPSS 1.11% Top 25%
Vendor Advisory microchip.com
Affected: Microchip Techology Advanced Software Framework
Published at:
Updated at:

References

Link Tags
https://www.microchip.com/en-us/tools-resources/develop/libraries/advanced-software-framework vendor advisory product
https://www.kb.cert.org/vuls/id/138043

Frequently Asked Questions

What is the severity of CVE-2024-7490?
CVE-2024-7490 has been scored as a critical severity vulnerability.
How to fix CVE-2024-7490?
To fix CVE-2024-7490: ASF is no longer being supported. Apply provided workaround or migrate to an actively maintained framework.
Is CVE-2024-7490 being actively exploited in the wild?
It is possible that CVE-2024-7490 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2024-7490?
CVE-2024-7490 affects Microchip Techology Advanced Software Framework.
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