Vulnerabilities
Misconfiguration
Compliance
CVE Vulnerabilities

CVE-2008-4989

Improper Certificate Validation

Published: Nov 13, 2008 | Modified: Apr 09, 2025
CVSS 3.x
5.9
MEDIUM
Source:
NVD
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N
CVSS 2.x
4.3 MEDIUM
AV:N/AC:M/Au:N/C:N/I:P/A:N
RedHat/V2
RedHat/V3
Ubuntu
MEDIUM
Vulnerability-free packages from our partners
root.io logo minimus.io logo echo.ai logo
Additional information
NVDhttps://nvd.nist.gov/vuln/detail/CVE-2008-4989
CWEhttps://cwe.mitre.org/data/definitions/295.html

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).

Weakness

The product does not validate, or incorrectly validates, a certificate.

Affected Software

NameVendorStart VersionEnd Version
GnutlsGnu*2.6.1 (excluding)
Red Hat Enterprise Linux 5RedHatgnutls-0:1.4.1-3.el5_2.1*
Gnutls11Ubuntudapper*
Gnutls12Ubuntudapper*
Gnutls13Ubuntugutsy*
Gnutls13Ubuntuhardy*
Gnutls26Ubuntuintrepid*
Gnutls26Ubuntuupstream*

Potential Mitigations

References

Aqua Security is the largest pure-play cloud native security company, providing customers the freedom to innovate and run their businesses with minimal friction. The Aqua Cloud Native Security Platform provides prevention, detection, and response automation across the entire application lifecycle to secure the build, secure cloud infrastructure and secure running workloads wherever they are deployed.
Copyright © 2026 Aqua Security Software Ltd.   Privacy Policy | Terms of Use