National Vulnerability Database

National Vulnerability Database

National Vulnerability

CVE-2009-0591 Detail


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.

Source:  MITRE      Last Modified:  03/27/2009

Quick Info

CVE Dictionary Entry:
Original release date:
Last revised:


CVSS Severity (version 2.0):
CVSS v2 Base Score:
2.6 LOW
(AV:N/AC:H/Au:N/C:N/I:P/A:N) (legend)
Impact Subscore:
Exploitability Subscore:
CVSS Version 2 Metrics:
Access Vector:
Network exploitable
Access Complexity:
Not required to exploit
Impact Type:
Allows unauthorized modification

Vendor Statements (disclaimer)

Official Statement from Red Hat (03/30/2009)

Not vulnerable. This issue affected OpenSSL CMS functionality which is not present in the openssl packages as shipped with Red Hat Enterprise Linux 2.1, 3, 4 or 5.

References to Advisories, Solutions, and Tools

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Hyperlink Resource Type Source Name External Source NETBSD NetBSD-SA2009-008 External Source APPLE APPLE-SA-2009-09-10-2 External Source SUSE SUSE-SR:2009:010 External Source HP HPSBUX02435 External Source HP HPSBOV02540 External Source SECTRACK 1021907 External Source CONFIRM External Source CONFIRM Vendor Advisory External Source CONFIRM Vendor Advisory External Source CONFIRM External Source CONFIRM External Source BID 34256 Vendor Advisory External Source VUPEN ADV-2009-0850 External Source VUPEN ADV-2009-1020 External Source VUPEN ADV-2009-1175 External Source VUPEN ADV-2009-1548 External Source XF openssl-cmsverify-security-bypass(49432) External Source CONFIRM

Technical Details

Vulnerability Type (View All)

Change History 3 change records found - show changes