perl-IO-Socket-SSL: incorrect checking of certificate hostnames
Published Aug 31, 2009
4.3
MEDIUMCVSS 2.0
EPSS 1.00%
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.
Affected products
No data.
- 1.14
- 1.15
- 1.16
- 1.16_1
- 1.16_2
- 1.16_3
- 1.17
- 1.18
- 1.19
- 1.20
- 1.21
- 1.22
- 1.23
- 1.24
- 1.25
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
No CVSS v3.0 score for this CVE.
AV:N/AC:M/Au:N/C:N/I:P/A:N
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 3, 2026.
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (10 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 3, 2026 | 1.00% (0.00996) | 61.42th | v5 (v2026.06.15) |
| Jun 15, 2026 | 1.00% (0.00996) | 58.00th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.19% (0.00191) | 38.91th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.50% (0.00496) | 77.03th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.50% (0.00496) | 75.54th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.50% (0.00496) | 72.55th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.41% (0.01408) | 72.89th | v2 (v2022.01.01) |
| Mar 2, 2023 | 1.41% (0.01408) | 72.88th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.41% (0.01408) | 70.87th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.41% (0.01408) | 49.94th | v2 (v2022.01.01) |
References (12)
- http://cpansearch.perl.org/src/SULLR/IO-Socket-SSL-1.30/Changes x_refsource_CONFIRM
- http://lists.opensuse.org/opensuse-security-announce/2009-09/msg00001.html vendor-advisoryx_refsource_SUSE
- http://secunia.com/advisories/42893 third-party-advisoryx_refsource_SECUNIA
- http://www.gentoo.org/security/en/glsa/glsa-201101-06.xml vendor-advisoryx_refsource_GENTOO
- http://www.openwall.com/lists/oss-security/2009/08/28/1 mailing-listx_refsource_MLIST
- http://www.openwall.com/lists/oss-security/2009/08/29/1 mailing-listx_refsource_MLIST
- http://www.openwall.com/lists/oss-security/2009/08/31/4 mailing-listx_refsource_MLIST
- http://www.vupen.com/english/advisories/2011/0118 vdb-entryx_refsource_VUPEN
- https://access.redhat.com/security/cve/CVE-2009-3024 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=509819 Issue Tracking
- https://nvd.nist.gov/vuln/detail/CVE-2009-3024
- https://www.cve.org/CVERecord?id=CVE-2009-3024
| Link | Providers | Tags |
|---|---|---|
| http://cpansearch.perl.org/src/SULLR/IO-Socket-SSL-1.30/Changes | x_refsource_CONFIRM | |
| http://lists.opensuse.org/opensuse-security-announce/2009-09/msg00001.html | vendor-advisoryx_refsource_SUSE | |
| http://secunia.com/advisories/42893 | third-party-advisoryx_refsource_SECUNIA | |
| http://www.gentoo.org/security/en/glsa/glsa-201101-06.xml | vendor-advisoryx_refsource_GENTOO | |
| http://www.openwall.com/lists/oss-security/2009/08/28/1 | mailing-listx_refsource_MLIST | |
| http://www.openwall.com/lists/oss-security/2009/08/29/1 | mailing-listx_refsource_MLIST | |
| http://www.openwall.com/lists/oss-security/2009/08/31/4 | mailing-listx_refsource_MLIST | |
| http://www.vupen.com/english/advisories/2011/0118 | vdb-entryx_refsource_VUPEN | |
| https://access.redhat.com/security/cve/CVE-2009-3024 | Vendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=509819 | Issue Tracking | |
| https://nvd.nist.gov/vuln/detail/CVE-2009-3024 | ||
| https://www.cve.org/CVERecord?id=CVE-2009-3024 |
Change history (0)
No recorded changes yet.