CVE-2021-22671CWE-190

Multiple integer overflow issues exist while processing long domain names, which may allow an attacker to remotely execute code on the SimpleLink Wi-Fi…

published May 7, 2021

CVSS
—
EPSS
2%
Percentile
77.7
In the wild
Unconfirmed
What it is

⚠️ Multiple integer overflow vulnerabilities are lurking in the shadows of long domain name processing for SimpleLink Wi-Fi SDKs. 🚀 Think of it as a delivery service trying to handle oversized packages without proper guidelines — if the limits aren't enforced, chaos can ensue! Those long domain names could lead to unexpected behavior, like a delivery truck getting stuck in a narrow alley. With these integer overflows, an attacker could exploit this flaw to execute arbitrary code remotely. This could lead to a full compromise of the device, potentially allowing the attacker to hijack operations or control network communications. Yikes!

Put simply

Think of it as a delivery service trying to handle oversized packages without proper guidelines — if the limits aren't enforced, chaos can ensue! Those long domain names could lead to unexpected behavior, like a delivery truck getting stuck in a narrow alley. These integer overflow issues occur while processing long domain names, which may allow attackers to bypass standard limits, leading to memory corruption and subsequently remote code execution. This impacts several versions of the SimpleLink Wi-Fi SDK across multiple platforms.

What to do

With these integer overflows, an attacker could exploit this flaw to execute arbitrary code remotely. This could lead to a full compromise of the device, potentially allowing the attacker to hijack operations or control network communications. Yikes! Update the affected SimpleLink Wi-Fi SDKs to the latest versions: MSP432E4 SDK to v4.20.00.13 or later, CC32XX SDK to v4.30.00.07 or later, and others as specified. It's also a good idea to implement stricter validation on domain name inputs to prevent overflow conditions. You've got this! By following these steps, you'll harden your system against these sneaky vulnerabilities! 🛡️

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.01752 · 77.7th percentile
Weakness
CWE-190 · Integer Overflow or Wraparound
Published
2021-05-07T13:12Z
EPSS history
Timeline
  • 07 MAY 13:12Z
    Multiple integer overflow issues exist while processing long domain names, which may allow an attacker to remotely execute code on the SimpleLink Wi-Fi…
    cvelistv5