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Vulnerability record · CVE-2009-1378 · published 19 May 2009

CVE-2009-1378: Openssl memory leak vulnerability

OOpenssl · Openssl

Multiple memory leaks in the dtls1_process_out_of_seq_message function in ssl/d1_both.c in OpenSSL 0.9.8k and earlier 0.9.8 versions allow remote attackers to cause a denial of service (memory consumption) via DTLS records that (1) are duplicates or (2) have sequence numbers much greater than current sequence numbers, aka "DTLS fragment handling memory leak."

5.0 CVSS 2.0 Medium EPSS 13% · top 3.9% CWE-401 · Memory leak
5.0CVSS 2.0 base score
13%EPSS exploitation probability, 30 days
NoNot in CISA KEV
2Affected product versions listed by NVD
74References, 4 tagged exploit
16 Jun 2026Last modified by NVD

Description

Multiple memory leaks in the dtls1_process_out_of_seq_message function in ssl/d1_both.c in OpenSSL 0.9.8k and earlier 0.9.8 versions allow remote attackers to cause a denial of service (memory consumption) via DTLS records that (1) are duplicates or (2) have sequence numbers much greater than current sequence numbers, aka "DTLS fragment handling memory leak."

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

Affected products

2 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=18188 Broken LinkPatchVendor Advisory
http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=c02029444 Broken LinkThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2009-06/msg00003.html Mailing ListThird Party Advisory
http://lists.vmware.com/pipermail/security-announce/2010/000082.html Third Party Advisory
http://marc.info/?l=openssl-dev&m=124247679213944&w=2 Mailing ListPatchThird Party Advisory
http://marc.info/?l=openssl-dev&m=124263491424212&w=2 ExploitMailing ListThird Party Advisory
http://rt.openssl.org/Ticket/Display.html?id=1931&user=guest&pass=guest Broken LinkThird Party Advisory
http://secunia.com/advisories/35128 Not ApplicableThird Party Advisory
http://secunia.com/advisories/35416 Not ApplicableThird Party Advisory
http://secunia.com/advisories/35461 Not ApplicableThird Party Advisory
http://secunia.com/advisories/35571 Not ApplicableThird Party Advisory
http://secunia.com/advisories/35729 Not ApplicableThird Party Advisory
http://secunia.com/advisories/36533 Not ApplicableThird Party Advisory
http://secunia.com/advisories/37003 Not ApplicableThird Party Advisory
http://secunia.com/advisories/38761 Not ApplicableThird Party Advisory
http://secunia.com/advisories/38794 Not ApplicableThird Party Advisory
http://secunia.com/advisories/38834 Not ApplicableThird Party Advisory
http://secunia.com/advisories/42724 Not ApplicableThird Party Advisory
http://secunia.com/advisories/42733 Not ApplicableThird Party Advisory
http://security.gentoo.org/glsa/glsa-200912-01.xml Third Party Advisory
http://slackware.com/security/viewer.php?l=slackware-security&y=2010&m=slackware-security.663049 Mailing ListThird 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.mandriva.com/security/advisories?name=MDVSA-2009:120 Not Applicable
http://www.openwall.com/lists/oss-security/2009/05/18/1 Mailing ListThird Party Advisory
http://www.redhat.com/support/errata/RHSA-2009-1335.html Third Party Advisory
http://www.securityfocus.com/bid/35001 Broken LinkThird Party AdvisoryVDB Entry
http://www.securitytracker.com/id?1022241 Broken LinkThird Party AdvisoryVDB Entry
http://www.ubuntu.com/usn/USN-792-1 Third Party Advisory
http://www.vupen.com/english/advisories/2009/1377 Permissions RequiredThird Party Advisory
http://www.vupen.com/english/advisories/2010/0528 Permissions RequiredThird Party Advisory
https://kb.bluecoat.com/index?page=content&id=SA50 Broken Link
https://launchpad.net/bugs/cve/2009-1378 Third Party Advisory
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11309 Broken LinkTool Signature
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A7229 Broken LinkTool Signature
https://www.exploit-db.com/exploits/8720 ExploitThird Party AdvisoryVDB Entry
ftp://ftp.netbsd.org/pub/NetBSD/security/advisories/NetBSD-SA2009-009.txt.asc Broken LinkThird Party Advisory
http://cvs.openssl.org/chngview?cn=18188 Broken LinkPatchVendor Advisory
http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=c02029444 Broken LinkThird Party Advisory

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Source: NIST National Vulnerability Database (record CVE-2009-1378), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.