CVE-2009-0124
The tqsl_verifyDataBlock function in openssl_cert.cpp in American Radio Relay League (ARRL)...
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.
Exploit likelihood
What each source reports
NVD Score used
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.
- Record
CVE-2009-0124- CVSS 2.0
- 5.0 Medium
AV:N/AC:L/Au:N/C:P/I:N/A:N - Weakness
- CWE-287
- Updated
- 2026-11-02
CVE List No score
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.
- Record
CVE-2009-0124- Updated
- 2026-11-02
EUVDEUVD-2009-0133 No score
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.
- Record
EUVD-2009-0133- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-2q3r-gf9c-fhv3 No score
The tqsl_verifyDataBlock function in openssl_cert.cpp in American Radio Relay League (ARRL)...
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.
- Record
GHSA-2q3r-gf9c-fhv3- Weakness
- CWE-287
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2009-0124 is a medium vulnerability (CVSS 5.0) in Arrl Tqsllib, published January 15, 2009. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.32%, the 71st percentile. No source names a fixed version.
References
openwall.com/lists/oss-security/2009/01/12/4
secunia.com/advisories/33543
redhat.com/archives/fedora-package-announce/2009-January/msg00557.html
bugs.debian.org/cgi-bin/bugreport.cgi?bug=511509
bugzilla.redhat.com/show_bug.cgi?id=479650
nvd.nist.gov/vuln/detail/CVE-2009-0124
github.com/advisories/GHSA-2q3r-gf9c-fhv3