Vulnerability in GNU Gnutls
CVE-2009-2409
The Network Security Services (NSS) library before 3.12.3, as used in Firefox; GnuTLS before 2.6.4 and 2.7.4; OpenSSL 0.9.8 through 0.9.8k; and other products support MD2 with X.509 certificates, which might allow remote attackers to spoof certificates by using MD2 design flaws to generate a hash collision in less than brute-force time. NOTE: the scope of this issue is currently limited because the amount of computation required is still large.
Vulnerability class: Improper Certificate Validation
Published · last modified .
CVSS v2 metric
CVSS v2 base score 5.1 (Medium). Vector: AV:N/AC:H/Au:N/C:P/I:P/A:P. This CVE predates CVSS v3 and has no v3 score from NVD.
EPSS exploit prediction
EPSS: 0.043 (90.7th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 91st percentile — 90.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.043 · newest: 0.043 · change: 0.000
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- secunia.com/advisories/36139 (Vendor Advisory, third-party-advisory)
- secunia.com/advisories/36157 (Vendor Advisory, third-party-advisory)
- www.mandriva.com/security/advisories (vendor-advisory, Not Applicable)
- www.mandriva.com/security/advisories (vendor-advisory, Not Applicable)
- www.debian.org/security/2009/dsa-1888 (vendor-advisory, Mailing List, Third Party Advisory)
- oval.cisecurity.org/repository/search/definition/oval:org.mitre.oval:def:8594 (Broken Link, signature, vdb-entry)
- security.gentoo.org/glsa/glsa-200911-02.xml (vendor-advisory, Third Party Advisory)
- secunia.com/advisories/36434 (Vendor Advisory, third-party-advisory)
- security.gentoo.org/glsa/glsa-200912-01.xml (vendor-advisory, Third Party Advisory)
- www.securitytracker.com/id (vdb-entry, Broken Link)
Frequently asked questions
- What is CVE-2009-2409?
- CVE-2009-2409 is a vulnerability in GNU Gnutls, classified under Improper Certificate Validation. Published 2009-07-30.
- Is CVE-2009-2409 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.