CVE-2010-4334
MEDIUM · CVSS 4.0EPSS 1.8%EU EUVD
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.
Key facts
- CVSS score
- 4.0 (v2.0)
- Severity
- MEDIUM
- CVSS vector
AV:N/AC:H/Au:N/C:P/I:P/A:N- Weakness (CWE)
- CWE-310
- EPSS score
- 1.8% (78th percentile)
- In CISA KEV
- No
- In EU EUVD
- Yes (EUVD-2010-4306)
- Published
- January 14, 2011
- NVD last modified
- June 16, 2026
- Status
- Modified
EU Vulnerability Database (EUVD)
This vulnerability is also tracked by ENISA as EUVD-2010-4306 in the EU Vulnerability Database. Last updated in EUVD on August 7, 2024.
View on the EU Vulnerability DatabaseAffected products
- io-socket-ssl / io-socket-ssl
References
- http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=606058(Patch)
- 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(Vendor Advisory)
- 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
Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS
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