kdelibs: kssl incorrect verification of SSL certificate with NUL in subjectAltName
Published Sep 8, 2009
7.5
HIGHCVSS 2.0
EPSS 1.26%
Description
KDE KSSL in kdelibs 3.5.4, 4.2.4, and 4.3 does not properly handle a '\0' character in a domain name in the Subject Alternative Name field of an X.509 certificate, which allows man-in-the-middle attackers to spoof arbitrary SSL servers via a crafted certificate issued by a legitimate Certification Authority, a related issue to CVE-2009-2408.
Affected products
Remediation
Red Hat statement
This issue did not affect kdelibs packages as shipped in Red Hat Enterprise Linux 3 and 4. The Red Hat Product Security has rated this issue as having low security impact, a future update may address this flaw in Red Hat Enterprise Linux 5.
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:L/Au:N/C:P/I:P/A:P
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 1, 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 1, 2026 | 1.26% (0.01257) | 68.47th | v5 (v2026.06.15) |
| Jun 15, 2026 | 1.23% (0.01233) | 65.00th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.28% (0.00276) | 49.00th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.08% (0.00077) | 35.10th | v3 (v2023.03.01) |
| Jun 21, 2024 | 0.08% (0.00077) | 33.29th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.08% (0.00077) | 31.25th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.02% (0.01018) | 40.69th | v2 (v2022.01.01) |
| Sep 10, 2022 | 1.02% (0.01018) | 38.88th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.02% (0.01018) | 36.86th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.02% (0.01018) | 19.50th | v2 (v2022.01.01) |
References (8)
- http://secunia.com/advisories/36468 third-party-advisoryx_refsource_SECUNIAVendor Advisory
- http://www.mandriva.com/security/advisories?name=MDVSA-2009:330 vendor-advisoryx_refsource_MANDRIVA
- http://www.mandriva.com/security/advisories?name=MDVSA-2011:162 vendor-advisoryx_refsource_MANDRIVA
- http://www.vupen.com/english/advisories/2009/2532 vdb-entryx_refsource_VUPENVendor Advisory
- https://access.redhat.com/security/cve/CVE-2009-2702 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=520661 x_refsource_CONFIRMIssue Tracking
- https://nvd.nist.gov/vuln/detail/CVE-2009-2702
- https://www.cve.org/CVERecord?id=CVE-2009-2702
| Link | Providers | Tags |
|---|---|---|
| http://secunia.com/advisories/36468 | third-party-advisoryx_refsource_SECUNIAVendor Advisory | |
| http://www.mandriva.com/security/advisories?name=MDVSA-2009:330 | vendor-advisoryx_refsource_MANDRIVA | |
| http://www.mandriva.com/security/advisories?name=MDVSA-2011:162 | vendor-advisoryx_refsource_MANDRIVA | |
| http://www.vupen.com/english/advisories/2009/2532 | vdb-entryx_refsource_VUPENVendor Advisory | |
| https://access.redhat.com/security/cve/CVE-2009-2702 | Vendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=520661 | x_refsource_CONFIRMIssue Tracking | |
| https://nvd.nist.gov/vuln/detail/CVE-2009-2702 | ||
| https://www.cve.org/CVERecord?id=CVE-2009-2702 |
Change history (0)
No recorded changes yet.