Vulnerability CVE-2009-0124
Published: 2009-01-15   Modified: 2012-02-13

Description:
The tqsl_verifyDataBlock function in openssl_cert.cpp in American Radio Relay League (ARRL) tqsllib 2.0 does not properly check the return value from the OpenSSL EVP_VerifyFinal function, which allows remote attackers to bypass validation of the certificate chain via a malformed SSL/TLS signature, a similar vulnerability to CVE-2008-5077.

Type:

CWE-287

 (Improper Authentication)

CVSS2 => (AV:N/AC:L/Au:N/C:P/I:N/A:N)

CVSS Base Score
Impact Subscore
Exploitability Subscore
5/10
2.9/10
10/10
Exploit range
Attack complexity
Authentication
Remote
Low
No required
Confidentiality impact
Integrity impact
Availability impact
Partial
None
None
Affected software
ARRL -> Tqsllib 

 References:
https://www.redhat.com/archives/fedora-package-announce/2009-January/msg00557.html
https://bugzilla.redhat.com/show_bug.cgi?id=479650
http://secunia.com/advisories/33543
http://openwall.com/lists/oss-security/2009/01/12/4
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=511509
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