CVE-2009-0591 Security feature bypass in n/a

Low 2.6 Published Updated

Remote attackers can repudiate invalid CMS signatures due to improper error handling in OpenSSL, bypassing signature validation when CMS is enabled.

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

What is CVE-2009-0591?

CVE-2009-0591 is a low-severity vulnerability in Openssl Openssl, published on 27 Mar 2009. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

The CMS_verify function in OpenSSL 0.9.8h through 0.9.8j, when CMS is enabled, does not properly handle errors associated with malformed signed attributes, which allows remote attackers to repudiate a signature that originally appeared to be valid but was actually invalid.

Weakness: CWE-287

Which versions are affected by CVE-2009-0591?

It affects 1 product.

Products include Openssl Openssl.

How do I fix CVE-2009-0591?

Upgrade to a fixed version.

Is CVE-2009-0591 being exploited?

There is no known exploitation of CVE-2009-0591 in the wild and no public exploit code.

All Openssl Openssl vulnerabilities

Sources

Also known as GHSA-xfgm-r927-x577.

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