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Vulnerability record · CVE-2006-4343 · published 28 September 2006

CVE-2006-4343: Openssl null pointer dereference vulnerability

OOpenssl · Openssl

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.

4.3 CVSS 2.0 Medium EPSS 19% · top 2.8% CWE-476 · NULL pointer dereference
4.3CVSS 2.0 base score
19%EPSS exploitation probability, 30 days
NoNot in CISA KEV
3Affected product versions listed by NVD
262References
16 Jun 2026Last modified by NVD

Description

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.

AV:N/AC:M/Au:N/C:N/I:N/A:P

Affected products

3 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
ftp://ftp.netbsd.org/pub/NetBSD/security/advisories/NetBSD-SA2008-007.txt.asc Third Party Advisory
ftp://patches.sgi.com/support/free/security/advisories/20061001-01-P.asc Third Party Advisory
http://docs.info.apple.com/article.html?artnum=304829 Third Party Advisory
http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=c01118771 Broken Link
http://issues.rpath.com/browse/RPL-613 Broken Link
http://itrc.hp.com/service/cki/docDisplay.do?docId=c00805100 Broken Link
http://itrc.hp.com/service/cki/docDisplay.do?docId=c00849540 Broken Link
http://kolab.org/security/kolab-vendor-notice-11.txt Broken Link
http://lists.apple.com/archives/security-announce/2006/Nov/msg00001.html Mailing ListThird Party Advisory
http://lists.grok.org.uk/pipermail/full-disclosure/2006-September/049715.html Mailing ListThird Party Advisory
http://lists.vmware.com/pipermail/security-announce/2008/000008.html Mailing ListThird Party Advisory
http://marc.info/?l=bugtraq&m=130497311408250&w=2 Mailing ListThird Party Advisory
http://openbsd.org/errata.html#openssl2 Third Party Advisory
http://openvpn.net/changelog.html Third Party Advisory
http://secunia.com/advisories/22094 Third Party Advisory
http://secunia.com/advisories/22116 Third Party Advisory
http://secunia.com/advisories/22130 Third Party Advisory
http://secunia.com/advisories/22165 Third Party Advisory
http://secunia.com/advisories/22166 Third Party Advisory
http://secunia.com/advisories/22172 Third Party Advisory
http://secunia.com/advisories/22186 Third Party Advisory
http://secunia.com/advisories/22193 Third Party Advisory
http://secunia.com/advisories/22207 Third Party Advisory
http://secunia.com/advisories/22212 Third Party Advisory
http://secunia.com/advisories/22216 Third Party Advisory
http://secunia.com/advisories/22220 Third Party Advisory
http://secunia.com/advisories/22240 Third Party Advisory
http://secunia.com/advisories/22259 Third Party Advisory
http://secunia.com/advisories/22260 Third Party Advisory
http://secunia.com/advisories/22284 Third Party Advisory
http://secunia.com/advisories/22298 Third Party Advisory
http://secunia.com/advisories/22330 Third Party Advisory
http://secunia.com/advisories/22385 Third Party Advisory
http://secunia.com/advisories/22460 Third Party Advisory
http://secunia.com/advisories/22487 Third Party Advisory
http://secunia.com/advisories/22500 Third Party Advisory
http://secunia.com/advisories/22544 Third Party Advisory
http://secunia.com/advisories/22626 Third Party Advisory
http://secunia.com/advisories/22758 Third Party Advisory
http://secunia.com/advisories/22772 Third Party Advisory

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Source: NIST National Vulnerability Database (record CVE-2006-4343), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.