Read the docs
TI-2008-04743 Aliases CVE-2008-4989GHSA-8ph9-x262-cchw

The _gnutls_x509_verify_certificate function in lib/x509/verify.c in libgnutls in GnuTLS…

Priority LOW 30CWE-295Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
High
Impact type
Spoofing
Confidentiality · integrity · availability
None · High · None
Fix status
Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-295.

Summary

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).

Why it matters now

EPSS 0.01882 79th percentileScored 2026-11-07
Fix Fixed Red Hat: 1 advisory

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 13

CPEVersionsRoleVendor
cpe:2.3:a:gnu:gnutls:*:*:*:*:*:*:*:*before 2.6.1VulnerableGNU
cpe:2.3:o:fedoraproject:fedora:8:*:*:*:*:*:*:*8VulnerableFedoraproject
cpe:2.3:o:fedoraproject:fedora:9:*:*:*:*:*:*:*9VulnerableFedoraproject
cpe:2.3:o:canonical:ubuntu_linux:6.06:*:*:*:*:*:*:*6.06VulnerableCanonical
cpe:2.3:o:canonical:ubuntu_linux:7.10:*:*:*:*:*:*:*7.10VulnerableCanonical
cpe:2.3:o:canonical:ubuntu_linux:8.04:*:*:*:-:*:*:*8.04VulnerableCanonical
cpe:2.3:o:canonical:ubuntu_linux:8.10:*:*:*:*:*:*:*8.10VulnerableCanonical
cpe:2.3:o:debian:debian_linux:4.0:*:*:*:*:*:*:*4.0VulnerableDebian
cpe:2.3:o:opensuse:opensuse:*:*:*:*:*:*:*:*10.3 – 11.1VulnerableopenSUSE
cpe:2.3:o:suse:linux_enterprise:10.0:-:*:*:*:*:*:*10.0VulnerableSUSE
  • cpe:2.3:a:gnu:gnutls:*:*:*:*:*:*:*:* Versions before 2.6.1 Vulnerable ·GNU
  • cpe:2.3:o:fedoraproject:fedora:8:*:*:*:*:*:*:* Versions 8 Vulnerable ·Fedoraproject
  • cpe:2.3:o:fedoraproject:fedora:9:*:*:*:*:*:*:* Versions 9 Vulnerable ·Fedoraproject
  • cpe:2.3:o:canonical:ubuntu_linux:6.06:*:*:*:*:*:*:* Versions 6.06 Vulnerable ·Canonical
  • cpe:2.3:o:canonical:ubuntu_linux:7.10:*:*:*:*:*:*:* Versions 7.10 Vulnerable ·Canonical
  • cpe:2.3:o:canonical:ubuntu_linux:8.04:*:*:*:-:*:*:* Versions 8.04 Vulnerable ·Canonical
  • cpe:2.3:o:canonical:ubuntu_linux:8.10:*:*:*:*:*:*:* Versions 8.10 Vulnerable ·Canonical
  • cpe:2.3:o:debian:debian_linux:4.0:*:*:*:*:*:*:* Versions 4.0 Vulnerable ·Debian
  • cpe:2.3:o:opensuse:opensuse:*:*:*:*:*:*:*:* Versions 10.3 – 11.1 Vulnerable ·openSUSE
  • cpe:2.3:o:suse:linux_enterprise:10.0:-:*:*:*:*:*:* Versions 10.0 Vulnerable ·SUSE
Show 3 more CPE
CPEVersionsRoleVendor
cpe:2.3:o:suse:linux_enterprise:11.0:-:*:*:*:*:*:*11.0VulnerableSUSE
cpe:2.3:o:suse:linux_enterprise_server:10:-:*:*:*:*:*:*10VulnerableSUSE
cpe:2.3:o:suse:linux_enterprise_server:11:-:*:*:*:*:*:*11VulnerableSUSE
  • cpe:2.3:o:suse:linux_enterprise:11.0:-:*:*:*:*:*:* Versions 11.0 Vulnerable ·SUSE
  • cpe:2.3:o:suse:linux_enterprise_server:10:-:*:*:*:*:*:* Versions 10 Vulnerable ·SUSE
  • cpe:2.3:o:suse:linux_enterprise_server:11:-:*:*:*:*:*:* Versions 11 Vulnerable ·SUSE

Remediation

Red Hat 1 advisory

  • RHSA-2008:0982 Released 2008-11-11 · Red Hat rating Moderate
    gnutls security update
    • Red Hat Enterprise Linux (v. 5 server) gnutls-1.4.1-3.el5_2.1, gnutls-1.4.1-3.el5_2.1.i386, gnutls-1.4.1-3.el5_2.1.ia64 +9
    • Red Hat Enterprise Linux Desktop (v. 5 client) gnutls-1.4.1-3.el5_2.1, gnutls-1.4.1-3.el5_2.1.i386, gnutls-utils-1.4.1-3.el5_2.1 +1
    • Red Hat Enterprise Linux Desktop Workstation (v. 5 client) gnutls-1.4.1-3.el5_2.1, gnutls-devel-1.4.1-3.el5_2.1, gnutls-devel-1.4.1-3.el5_2.1.i386

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Enterprise Linux (v. 5 server)Fixed RHSA-2008:0982
Red Hat Enterprise Linux Desktop (v. 5 client)Fixed RHSA-2008:0982
Red Hat Enterprise Linux Desktop Workstation (v. 5 client)Fixed RHSA-2008:0982

Timeline

  1. 2026-10-02 Threatist record created from CVE-2008-4989
  2. 2026-10-03 Alias added: GHSA-8ph9-x262-cchw

References

Patch 1

Advisory 11

Other 7

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences