CVE-2021-27421 NXP MCUXpresso SDK Integer Overflow or Wraparound
An integer overflow in the SDK_Malloc function allows out-of-bounds memory access, potentially causing a segmentation fault and denial of service.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2021-27421?
CVE-2021-27421 is a high-severity vulnerability in NXP MCUXpresso SDK, published on 3 May 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
NXP MCUXpresso SDK versions prior to 2.8.2 are vulnerable to integer overflow in SDK_Malloc function, which could allow to access memory locations outside the bounds of a specified array, leading to unexpected behavior such segmentation fault when assigning a particular block of memory from the heap via malloc.
Weakness: CWE-190
Which versions are affected by CVE-2021-27421?
It affects 1 product.
Products include Nxp Mcuxpresso Software Development Kit.
How do I fix CVE-2021-27421?
No fix has been published for CVE-2021-27421 yet. Limit exposure of the affected software until one is available.
Is CVE-2021-27421 being exploited?
There is no known exploitation of CVE-2021-27421 in the wild and no public exploit code.
Other vulnerabilities in NXP MCUXpresso SDK
Sources
Also known as GHSA-78hf-2qv8-j9h7.