libnasl: OpenSSL incorrect checks for malformed signatures
Published Jan 15, 2009
5.0
MEDIUMCVSS 2.0
EPSS 1.50%
Description
NOTE: this issue has been disputed by the upstream vendor. nasl/nasl_crypto2.c in the Nessus Attack Scripting Language library (aka libnasl) 2.2.11 does not properly check the return value from the OpenSSL DSA_do_verify function, which allows remote attackers to bypass validation of the certificate chain via a malformed SSL/TLS signature, a similar vulnerability to CVE-2008-5077. NOTE: the upstream vendor has disputed this issue, stating "while we do misuse this function (this is a bug), it has absolutely no security ramification.
Affected products
No data.
- 2.2.11
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:L/Au:N/C:P/I:N/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 | 1.50% (0.01496) | 73.29th | v5 (v2026.06.15) |
| Jun 15, 2026 | 1.50% (0.01496) | 70.74th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.19% (0.00187) | 38.23th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.52% (0.00521) | 77.63th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.52% (0.00521) | 76.17th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.52% (0.00521) | 73.26th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.32% (0.01319) | 71.27th | v2 (v2022.01.01) |
| Feb 23, 2023 | 1.32% (0.01319) | 71.23th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.32% (0.01319) | 69.22th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.32% (0.01319) | 44.98th | v2 (v2022.01.01) |
References (9)
- http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=511517 x_refsource_MISCExploit
- http://cvs.fedoraproject.org/viewvc/rpms/libnasl/F-10/libnasl.spec?r1=1.16&r2=1.17 x_refsource_CONFIRM
- http://lists.opensuse.org/opensuse-security-announce/2009-02/msg00000.html vendor-advisoryx_refsource_SUSE
- http://openwall.com/lists/oss-security/2009/01/12/4 mailing-listx_refsource_MLIST
- http://www.attrition.org/pipermail/vim/2009-January/002133.html mailing-listx_refsource_VIM
- https://access.redhat.com/security/cve/CVE-2009-0125 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=479655 x_refsource_CONFIRMExploitIssue Tracking
- https://nvd.nist.gov/vuln/detail/CVE-2009-0125
- https://www.cve.org/CVERecord?id=CVE-2009-0125
| Link | Providers | Tags |
|---|---|---|
| http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=511517 | x_refsource_MISCExploit | |
| http://cvs.fedoraproject.org/viewvc/rpms/libnasl/F-10/libnasl.spec?r1=1.16&r2=1.17 | x_refsource_CONFIRM | |
| http://lists.opensuse.org/opensuse-security-announce/2009-02/msg00000.html | vendor-advisoryx_refsource_SUSE | |
| http://openwall.com/lists/oss-security/2009/01/12/4 | mailing-listx_refsource_MLIST | |
| http://www.attrition.org/pipermail/vim/2009-January/002133.html | mailing-listx_refsource_VIM | |
| https://access.redhat.com/security/cve/CVE-2009-0125 | Vendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=479655 | x_refsource_CONFIRMExploitIssue Tracking | |
| https://nvd.nist.gov/vuln/detail/CVE-2009-0125 | ||
| https://www.cve.org/CVERecord?id=CVE-2009-0125 |
Change history (0)
No recorded changes yet.