VULNERABILITY INTELLIGENCE
CVE-2009-0124
CVSS score5 MEDIUM
EPSS probability1.32%
CISA KEVNot currently listed
Published2009-01-15
Last modified2026-06-16
CVSS vectorAV:N/AC:L/Au:N/C:P/I:N/A:N
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.
Weakness classification
- CWE-287: Improper Authentication