MEDIUM
gnutls: certificate chain verification flaw
Published Nov 13, 2008
5.9
MEDIUMCVSS 3.1
EPSS 1.88%
Description
The _gnutls_x509_verify_certificate function in lib/x509/verify.c in libgnutls in GnuTLS before 2.6.1 trusts certificate chains in which the last certificate is an arbitrary trusted, self-signed certificate, which allows man-in-the-middle attackers to insert a spoofed certificate for any Distinguished Name (DN).
Affected products
No data.
Configuration 2
OR
- 8
- 9
Configuration 3
OR
- 6.06
- 7.10
- 8.04
- 8.10
Configuration 4
- 4.0
Configuration 5
OR
- ≥ 10.3 · ≤ 11.1
- 10.0
- 11.0
- 10
- 11
No data.
Red Hat Enterprise Linux 5
gnutls-0:1.4.1-3.el5_2.1
Fixed · RHSA-2008:0982
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 5 | gnutls-0:1.4.1-3.el5_2.1 | Fixed | RHSA-2008:0982 |
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
5.9 MEDIUM NVD
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N
Attack Vector Network
Attack Complexity High
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality Impact None
Integrity Impact High
Availability Impact None
No CVSS v3.0 score for this CVE.
4.3 MEDIUM NVD
AV:N/AC:M/Au:N/C:N/I:P/A:N
Access Vector Network
Access Complexity Medium
Authentication None
Confidentiality Impact None
Integrity Impact Partial
Availability Impact None
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
1.88% 0.01882
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
EPSS probability 0.01882
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 | 1.88% (0.01882) | 78.71th | v5 (v2026.06.15) |
| Jun 15, 2026 | 1.88% (0.01882) | 76.69th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.36% (0.00356) | 55.70th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.19% (0.00187) | 57.43th | v3 (v2023.03.01) |
| Feb 9, 2024 | 0.19% (0.00187) | 55.05th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.36% (0.00360) | 71.45th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.36% (0.00360) | 67.84th | v3 (v2023.03.01) |
| Mar 6, 2023 | 2.69% (0.02686) | 82.85th | v2 (v2022.01.01) |
| Apr 1, 2022 | 2.69% (0.02686) | 81.17th | v2 (v2022.01.01) |
| Feb 4, 2022 | 2.69% (0.02686) | 62.66th | v2 (v2022.01.01) |
Weaknesses (1)
References (34)
- http://article.gmane.org/gmane.comp.encryption.gpg.gnutls.devel/3215 mailing-listx_refsource_MLISTBroken LinkPatch
- http://article.gmane.org/gmane.comp.encryption.gpg.gnutls.devel/3217 mailing-listx_refsource_MLISTBroken Link
- http://lists.opensuse.org/opensuse-security-announce/2008-12/msg00002.html vendor-advisoryx_refsource_SUSEMailing List
- http://lists.opensuse.org/opensuse-security-announce/2009-04/msg00010.html vendor-advisoryx_refsource_SUSEMailing List
- http://secunia.com/advisories/32619 third-party-advisoryx_refsource_SECUNIABroken LinkVendor Advisory
- http://secunia.com/advisories/32681 third-party-advisoryx_refsource_SECUNIABroken Link
- http://secunia.com/advisories/32687 third-party-advisoryx_refsource_SECUNIABroken Link
- http://secunia.com/advisories/32879 third-party-advisoryx_refsource_SECUNIABroken Link
- http://secunia.com/advisories/33501 third-party-advisoryx_refsource_SECUNIABroken Link
- http://secunia.com/advisories/33694 third-party-advisoryx_refsource_SECUNIABroken Link
- http://secunia.com/advisories/35423 third-party-advisoryx_refsource_SECUNIABroken Link
- http://security.gentoo.org/glsa/glsa-200901-10.xml vendor-advisoryx_refsource_GENTOOThird Party Advisory
- http://sunsolve.sun.com/search/document.do?assetkey=1-26-260528-1 vendor-advisoryx_refsource_SUNALERTBroken Link
- http://wiki.rpath.com/Advisories:rPSA-2008-0322 x_refsource_CONFIRMBroken Link
- http://www.debian.org/security/2009/dsa-1719 vendor-advisoryx_refsource_DEBIANMailing List
- http://www.gnu.org/software/gnutls/security.html x_refsource_CONFIRMProduct
- http://www.mandriva.com/security/advisories?name=MDVSA-2008:227 vendor-advisoryx_refsource_MANDRIVABroken Link
- http://www.redhat.com/support/errata/RHSA-2008-0982.html vendor-advisoryx_refsource_REDHATBroken Link
- http://www.securityfocus.com/archive/1/498431/100/0/threaded mailing-listx_refsource_BUGTRAQBroken LinkThird Party AdvisoryVDB Entry
- http://www.securityfocus.com/bid/32232 vdb-entryx_refsource_BIDBroken LinkPatchThird Party AdvisoryVDB Entry
- http://www.securitytracker.com/id?1021167 vdb-entryx_refsource_SECTRACKBroken LinkThird Party AdvisoryVDB Entry
- http://www.ubuntu.com/usn/usn-678-2 vendor-advisoryx_refsource_UBUNTUThird Party Advisory
- http://www.vupen.com/english/advisories/2008/3086 vdb-entryx_refsource_VUPENBroken Link
- http://www.vupen.com/english/advisories/2009/1567 vdb-entryx_refsource_VUPENBroken Link
- https://access.redhat.com/security/cve/CVE-2008-4989 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=470079 Issue Tracking
- https://exchange.xforce.ibmcloud.com/vulnerabilities/46482 vdb-entryx_refsource_XFThird Party AdvisoryVDB Entry
- https://issues.rpath.com/browse/RPL-2886 x_refsource_CONFIRMBroken Link
- https://nvd.nist.gov/vuln/detail/CVE-2008-4989
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11650 vdb-entrysignaturex_refsource_OVALBroken Link
- https://usn.ubuntu.com/678-1/ vendor-advisoryx_refsource_UBUNTUBroken Link
- https://www.cve.org/CVERecord?id=CVE-2008-4989
- https://www.redhat.com/archives/fedora-package-announce/2008-November/msg00222.html vendor-advisoryx_refsource_FEDORAMailing List
- https://www.redhat.com/archives/fedora-package-announce/2008-November/msg00293.html vendor-advisoryx_refsource_FEDORAMailing List
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner mitre
Published Nov 13, 2008
Updated Aug 7, 2024
Reserved Nov 6, 2008
Link CVE-2008-4989
CISA Vulnrichment
Updated n/a