CVE-2023-25076 Memory corruption in SNIProxy

Critical 9.8 Published Updated

A buffer overflow in SNIProxy allows remote attackers to execute arbitrary code via crafted HTTP or TLS packets.

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

What is CVE-2023-25076?

CVE-2023-25076 is a critical memory corruption vulnerability in SNIProxy, published on 30 Mar 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

A buffer overflow vulnerability exists in the handling of wildcard backend hosts of SNIProxy 0.6.0-2 and the master branch (commit: 822bb80df9b7b345cc9eba55df74a07b498819ba). A specially crafted HTTP or TLS packet can lead to arbitrary code execution. An attacker could send a malicious packet to trigger this vulnerability.

Weakness: CWE-120

Which versions are affected by CVE-2023-25076?

It affects 1 product.

Products include Sniproxy Project Sniproxy.

How do I fix CVE-2023-25076?

Apply the vendor's patch.

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

Is CVE-2023-25076 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-25076 exists.

Sources

Also known as DEBIAN-CVE-2023-25076, DLA-3406-1, DSA-5413-1, GHSA-fhgm-rvpq-xwx9, MGASA-2023-0178, UBUNTU-CVE-2023-25076 and 1 more.

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