CVE-2021-35474 Dynamic stack buffer overflow in cachekey plugin

Critical 9.8 Published Updated

A stack-based buffer overflow in the cachekey plugin allows attackers to execute arbitrary code or cause a denial of service.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
Available

What is CVE-2021-35474?

CVE-2021-35474 is a critical memory corruption vulnerability in Apache Traffic Server, published on 30 Jun 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Stack-based Buffer Overflow vulnerability in cachekey plugin of Apache Traffic Server. This issue affects Apache Traffic Server 7.0.0 to 7.1.12, 8.0.0 to 8.1.1, 9.0.0 to 9.0.1.

Weakness: CWE-787, CWE-121

Which versions are affected by CVE-2021-35474?

It affects 2 products.

Products include Apache Traffic Server, Debian Debian Linux.

How do I fix CVE-2021-35474?

Upgrade to a fixed version.

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

Is CVE-2021-35474 being exploited?

There is no known exploitation of CVE-2021-35474 in the wild and no public exploit code.

All Apache Traffic Server vulnerabilities

Sources

Also known as DEBIAN-CVE-2021-35474, GHSA-6j7h-rpp4-9j8x, UBUNTU-CVE-2021-35474.

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