CVE-2009-0124

Severity: medium (CVSS 5.0 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.3% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2009-01-15 · updated 2026-06-16
Weakness: CWE-287

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.

Affected products

Arrl Tqsllib: 2.0

References

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

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