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Vulnerability record · CVE-2009-1387 · published 4 June 2009

CVE-2009-1387: Openssl null pointer dereference vulnerability

OOpenssl · Openssl

The dtls1_retrieve_buffered_fragment function in ssl/d1_both.c in OpenSSL before 1.0.0 Beta 2 allows remote attackers to cause a denial of service (NULL pointer dereference and daemon crash) via an out-of-sequence DTLS handshake message, related to a "fragment bug."

5.0 CVSS 2.0 Medium EPSS 10% · top 4.5% CWE-476 · NULL pointer dereference
5.0CVSS 2.0 base score
10%EPSS exploitation probability, 30 days
NoNot in CISA KEV
3Affected product versions listed by NVD
44References
16 Jun 2026Last modified by NVD

Description

The dtls1_retrieve_buffered_fragment function in ssl/d1_both.c in OpenSSL before 1.0.0 Beta 2 allows remote attackers to cause a denial of service (NULL pointer dereference and daemon crash) via an out-of-sequence DTLS handshake message, related to a "fragment bug."

AV:N/AC:L/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-SA2009-009.txt.asc Broken LinkThird Party Advisory
http://cvs.openssl.org/chngview?cn=17958 Broken LinkPatchThird Party AdvisoryVendor Advisory
http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=c02029444 Broken LinkThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2009-07/msg00002.html Third Party Advisory
http://lists.vmware.com/pipermail/security-announce/2010/000082.html Mailing ListThird Party Advisory
http://rt.openssl.org/Ticket/Display.html?id=1838&user=guest&pass=guest Broken LinkPatchThird Party Advisory
http://secunia.com/advisories/35571 Third Party Advisory
http://secunia.com/advisories/35685 Third Party Advisory
http://secunia.com/advisories/35729 Third Party Advisory
http://secunia.com/advisories/36533 Third Party Advisory
http://secunia.com/advisories/37003 Third Party Advisory
http://secunia.com/advisories/38794 Third Party Advisory
http://secunia.com/advisories/38834 Third Party Advisory
http://security.gentoo.org/glsa/glsa-200912-01.xml Third Party Advisory
http://sourceforge.net/mailarchive/message.php?msg_name=4AD43807.7080105%40users.sourceforge.net Broken Link
http://voodoo-circle.sourceforge.net/sa/sa-20091012-01.html Third Party Advisory
http://www.openwall.com/lists/oss-security/2009/06/02/1 Mailing ListThird Party Advisory
http://www.redhat.com/support/errata/RHSA-2009-1335.html Third Party Advisory
http://www.ubuntu.com/usn/USN-792-1 Third Party Advisory
http://www.vupen.com/english/advisories/2010/0528 Permissions RequiredThird Party Advisory
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10740 Tool Signature
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A7592 Tool Signature
ftp://ftp.netbsd.org/pub/NetBSD/security/advisories/NetBSD-SA2009-009.txt.asc Broken LinkThird Party Advisory
http://cvs.openssl.org/chngview?cn=17958 Broken LinkPatchThird Party AdvisoryVendor Advisory
http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=c02029444 Broken LinkThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2009-07/msg00002.html Third Party Advisory
http://lists.vmware.com/pipermail/security-announce/2010/000082.html Mailing ListThird Party Advisory
http://rt.openssl.org/Ticket/Display.html?id=1838&user=guest&pass=guest Broken LinkPatchThird Party Advisory
http://secunia.com/advisories/35571 Third Party Advisory
http://secunia.com/advisories/35685 Third Party Advisory
http://secunia.com/advisories/35729 Third Party Advisory
http://secunia.com/advisories/36533 Third Party Advisory
http://secunia.com/advisories/37003 Third Party Advisory
http://secunia.com/advisories/38794 Third Party Advisory
http://secunia.com/advisories/38834 Third Party Advisory
http://security.gentoo.org/glsa/glsa-200912-01.xml Third Party Advisory
http://sourceforge.net/mailarchive/message.php?msg_name=4AD43807.7080105%40users.sourceforge.net Broken Link
http://voodoo-circle.sourceforge.net/sa/sa-20091012-01.html Third Party Advisory
http://www.openwall.com/lists/oss-security/2009/06/02/1 Mailing ListThird Party Advisory
http://www.redhat.com/support/errata/RHSA-2009-1335.html Third Party Advisory

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Source: NIST National Vulnerability Database (record CVE-2009-1387), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.