CVE-2006-4343 EXPLOIT
4.3
MEDIUM · CVSS 2.0 · EPSS 19.1% (pctl 97)
Patch early
A public exploit exists.
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.
Scoring
| CVSS | 4.3 (MEDIUM, v2.0) |
|---|---|
| Vector | AV:N/AC:M/Au:N/C:N/I:N/A:P |
| EPSS | 19.07% — more likely to be exploited than 97% of all CVEs |
| Weakness | CWE-476 |
| On CISA KEV | no |
| Public exploit | yes |
| Published | 2006-09-28 |
| Last modified | 2026-06-16 |
Affected (3)
| Vendor | Product |
|---|---|
| canonical | ubuntu linux |
| debian | debian linux |
| openssl | openssl |
Public exploits
| Source | Title | Date |
|---|---|---|
| exploit-db | OpenSSL < 0.9.7l/0.9.8d - SSLv2 Client Crash | 2007-12-23 |
| exploit-db | OpenSSL SSLv2 - Null Pointer Dereference Client Denial of Service | 2006-09-28 |
References
- ftp://ftp.netbsd.org/pub/NetBSD/security/advisories/NetBSD-SA2008-007.txt.asc
- ftp://patches.sgi.com/support/free/security/advisories/20061001-01-P.asc
- http://docs.info.apple.com/article.html?artnum=304829
- http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=c01118771
- http://issues.rpath.com/browse/RPL-613
- http://itrc.hp.com/service/cki/docDisplay.do?docId=c00805100
- http://itrc.hp.com/service/cki/docDisplay.do?docId=c00849540
- http://kolab.org/security/kolab-vendor-notice-11.txt
- http://lists.apple.com/archives/security-announce/2006/Nov/msg00001.html
- http://lists.grok.org.uk/pipermail/full-disclosure/2006-September/049715.html
- http://lists.vmware.com/pipermail/security-announce/2008/000008.html
- http://marc.info/?l=bugtraq&m=130497311408250&w=2
- http://openbsd.org/errata.html#openssl2
- http://openvpn.net/changelog.html
- http://secunia.com/advisories/22094
- http://secunia.com/advisories/22116
- http://secunia.com/advisories/22130
- http://secunia.com/advisories/22165
- http://secunia.com/advisories/22166
- http://secunia.com/advisories/22172
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