CVE-2010-4334

Severity: medium (CVSS 4.0 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.8% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2011-01-14 · updated 2026-06-16
Weakness: CWE-310

Description

The IO::Socket::SSL module 1.35 for Perl, when verify_mode is not VERIFY_NONE, fails open to VERIFY_NONE instead of throwing an error when a ca_file/ca_path cannot be verified, which allows remote attackers to bypass intended certificate restrictions.

Affected products

Io-Socket-Ssl: 1.35

References

http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=606058
http://cpansearch.perl.org/src/SULLR/IO-Socket-SSL-1.35/Changes
http://lists.fedoraproject.org/pipermail/package-announce/2010-December/052594.html
http://lists.fedoraproject.org/pipermail/package-announce/2010-December/052601.html
http://osvdb.org/69626
http://secunia.com/advisories/42508
http://secunia.com/advisories/42757
http://www.mandriva.com/security/advisories?name=MDVSA-2011:092
http://www.openwall.com/lists/oss-security/2010/12/09/8
http://www.openwall.com/lists/oss-security/2010/12/24/1
http://www.securityfocus.com/bid/45189
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=606058

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