Medium 5.0Published May 19, 2009

CVE-2009-1378Multiple 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 consum…

Updated under an hour ago (Nov 2, 2026, 12:23 AM ET)

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No exploitation reported and no EPSS estimate yet.

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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."

CVSS: 5.0 MEDIUM (v2.0, NVD)AV:N/AC:L/Au:N/C:N/I:N/A:P
Weakness (CWE): CWE-401
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Not given
NVD analysis: Modified
Record last updated: Jun 16, 2026
First seen by InfoSec Signals: Nov 1, 2026

Affected products

Affected products

openssl openssl openssl:openssl	after 0.9.8 before 0.9.8m	NVD
canonical ubuntu_linux canonical:ubuntu_linux	6.06; 8.04; 8.10; 9.04	NVD

References

References

http://cvs.openssl.org/chngview?cn=18188	broken-link, patch, vendor-advisory
http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=c02029444	broken-link, third-party-advisory
http://lists.opensuse.org/opensuse-security-announce/2009-06/msg00003.html	mailing-list, third-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-list, patch, third-party-advisory
http://marc.info/?l=openssl-dev&m=124263491424212&w=2	exploit, mailing-list, third-party-advisory
http://rt.openssl.org/Ticket/Display.html?id=1931&user=guest&pass=guest	broken-link, third-party-advisory
http://secunia.com/advisories/35128	not-applicable, third-party-advisory
http://secunia.com/advisories/35416	not-applicable, third-party-advisory
http://secunia.com/advisories/35461	not-applicable, third-party-advisory
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The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.