CVE-2015-3194 Null dereference in n/a

High 7.5 Published Updated

Remote attackers can crash applications using OpenSSL by sending malformed RSA PSS signatures, causing 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-2015-3194?

CVE-2015-3194 is a high-severity vulnerability in Canonical Ubuntu Linux, published on 6 Dec 2015. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

crypto/rsa/rsa_ameth.c in OpenSSL 1.0.1 before 1.0.1q and 1.0.2 before 1.0.2e allows remote attackers to cause a denial of service (NULL pointer dereference and application crash) via an RSA PSS ASN.1 signature that lacks a mask generation function parameter.

Weakness: CWE-476

Which versions are affected by CVE-2015-3194?

It affects 4 products.

Products include Canonical Ubuntu Linux, Debian Debian Linux, Nodejs Node.js, Openssl Openssl.

How do I fix CVE-2015-3194?

Upgrade to a fixed version.

Is CVE-2015-3194 being exploited?

There is no known exploitation of CVE-2015-3194 in the wild and no public exploit code.

Public exploit code: 1 proofs of concept on GitHub.

All Canonical Ubuntu Linux vulnerabilities

Sources

Also known as DEBIAN-CVE-2015-3194, GHSA-g2vh-4463-xcx8, UBUNTU-CVE-2015-3194.

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