NULL pointer dereference in OpenSSL
CVE-2006-4343
The get_server_hello function in the SSLv2 client code in OpenSSL 0.9.7 before 0.9.7l, 0.9.8 before 0.9.8d, and earlier versions allows remote servers to cause a denial of service (client crash) via unknown vectors that trigger a null pointer dereference.
Published · last modified .
CVSS v2 metric
CVSS v2 base score 4.3 (Medium). Vector: AV:N/AC:M/Au:N/C:N/I:N/A:P. This CVE predates CVSS v3 and has no v3 score from NVD.
EPSS exploit prediction
EPSS: 0.191 (97.2th percentile), scored .
Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 97th percentile — 97.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.191 · newest: 0.191 · change: 0.000
Affected products
- OpenSSL — versions 0.9.7, 0.9.7a, 0.9.7b
- Canonical Ubuntu Linux — versions 5.04, 5.10, 6.06
- Debian Linux — versions 3.1
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.mandriva.com/security/advisories (vendor-advisory, Third Party Advisory)
- secunia.com/advisories/22212 (Third Party Advisory, third-party-advisory)
- www.vupen.com/english/advisories/2006/4750 (Permissions Required, Third Party Advisory, vdb-entry)
- www.exploit-db.com/exploits/4773 (VDB Entry, Third Party Advisory, exploit)
- www.vmware.com/support/esx21/doc/esx-213-200612-patch.html (Third Party Advisory)
- secunia.com/advisories/23915 (Third Party Advisory, third-party-advisory)
- h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp (vendor-advisory, Broken Link)
- securitytracker.com/id (VDB Entry, Third Party Advisory, vdb-entry)
- secunia.com/advisories/23038 (Third Party Advisory, third-party-advisory)
- www.trustix.org/errata/2006/0054 (vendor-advisory, Broken Link)
Frequently asked questions
- What is CVE-2006-4343?
- CVE-2006-4343 is a vulnerability in OpenSSL, classified under NULL Pointer Dereference. Published 2006-09-28.
- Is CVE-2006-4343 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.