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CVE-2009-3024
The verify_hostname_of_cert function in the certificate checking feature in IO-Socket-SSL (IO::Socket::SSL) 1.14 through 1.25 only matches…
Medium4.3EPSS 1.00%
- Published
- Updated
- Reserved
- Assigned by
- mitre
Description
The verify_hostname_of_cert function in the certificate checking feature in IO-Socket-SSL (IO::Socket::SSL) 1.14 through 1.25 only matches the prefix of a hostname when no wildcard is used, which allows remote attackers to bypass the hostname check for a certificate.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 2.0 | Medium4.3 | AV:N/AC:M/Au:N/C:N/I:P/A:N |
- EPSS (exploitation in 30 days)
- 1.00% · top 37% of all CVEs (5 Nov 2026)
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The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 4.3.
Weakness
Affected products
n/a
- affected n/a
References (8)
- http://cpansearch.perl.org/src/SULLR/IO-Socket-SSL-1.30/Changes (opens in a new tab)x_refsource_CONFIRMx_transferred
- ADV-2011-0118 (opens in a new tab)vdb-entryx_refsource_VUPENx_transferred
- GLSA-201101-06 (opens in a new tab)vendor-advisoryx_refsource_GENTOOx_transferred
- SUSE-SR:2009:015 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- 42893 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- [oss-security] 20090828 CVE request: perl-IO-Socket-SSL certificate hostname compare bug (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- [oss-security] 20090829 Re: CVE request: perl-IO-Socket-SSL certificate hostname compare bug (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- [oss-security] 20090831 Re: Re: CVE request: perl-IO-Socket-SSL certificate hostname compare bug (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2009-3024)Record last updated .