CVE-2023-34933 Memory corruption in n/a

High 7.5 Published Updated

Attackers can cause a Denial of Service on H3C Magic routers via a crafted POST request triggering a stack overflow.

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-2023-34933?

CVE-2023-34933 is a high-severity memory corruption vulnerability in n/a, published on 28 Jun 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

A stack overflow in the UpdateWanParams function of H3C Magic B1STV100R012 allows attackers to cause a Denial of Service (DoS) via a crafted POST request.

Weakness: CWE-787

Which versions are affected by CVE-2023-34933?

It affects 1 product.

Products include H3c Magic B1st Firmware.

How do I fix CVE-2023-34933?

No fix has been published for CVE-2023-34933 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-2023-34933 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-34933 exists.

Sources

Also known as GHSA-hrw4-fgr2-8hr5.

Is CVE-2023-34933 in your software?

Upload an SBOM and sbomify checks it against every vulnerability here, every day.

Check your SBOMs for free