CVE-2021-43086 Memory corruption in n/a

Critical 9.8 Published Updated

A stack buffer overflow in the ASTC encoder library allows attackers to execute arbitrary code or cause a denial of service when using the compression function with specific options.

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-2021-43086?

CVE-2021-43086 is a critical memory corruption vulnerability in n/a, published on 28 Feb 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

ARM astcenc 3.2.0 is vulnerable to Buffer Overflow. When the compression function of the astc-encoder project with -cl option was used, a stack-buffer-overflow occurred in function encode_ise() in function compress_symbolic_block_for_partition_2planes() in "/Source/astcenc_compress_symbolic.cpp".

Weakness: CWE-787

Which versions are affected by CVE-2021-43086?

It affects 1 product.

Products include Arm Adaptive Scalable Texture Compression Encoder.

How do I fix CVE-2021-43086?

No fix has been published for CVE-2021-43086 yet. Limit exposure of the affected software until one is available.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2021-43086 being exploited?

There is no known exploitation of CVE-2021-43086 in the wild and no public exploit code.

Sources

Also known as GHSA-4jw7-vxxv-4m7h, UBUNTU-CVE-2021-43086.

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