OpenSSL: DTLS fragment handling memory DoS
Published May 19, 2009
5.0
MEDIUMCVSS 2.0
EPSS 12.75%
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."
Affected products
No data.
Configuration 2
- 6.06
- 8.04
- 8.10
- 9.04
No data.
Red Hat Enterprise Linux 5
openssl-0:0.9.8e-12.el5
Fixed · RHSA-2009:1335
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 5 | openssl-0:0.9.8e-12.el5 | Fixed | RHSA-2009:1335 |
No package ranges for this CVE.
Remediation
Red Hat statement
This issue did not affect versions of openssl as shipped in Red Hat Enterprise Linux 3 and 4. Note that both the DTLS specification and OpenSSLs implementation is still in development and unlikely to be used in production environments. There is no component shipped in Red Hat Enterprise Linux 5 using OpenSSLs DTLS implementation, except for OpenSSLs testing command line client - openssl.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
No CVSS v3.0 score for this CVE.
AV:N/AC:L/Au:N/C:N/I:N/A:P
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 3, 2026.
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (48 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 3, 2026 | 12.75% (0.12746) | 96.16th | v5 (v2026.06.15) |
| Jun 15, 2026 | 12.75% (0.12746) | 95.75th | v5 (v2026.06.15) |
| Mar 4, 2026 | 13.25% (0.13245) | 94.01th | v4 (v2025.03.14) |
| Mar 1, 2026 | 9.99% (0.09991) | 92.95th | v4 (v2025.03.14) |
| Feb 4, 2026 | 13.25% (0.13245) | 93.96th | v4 (v2025.03.14) |
| Feb 1, 2026 | 9.99% (0.09991) | 92.89th | v4 (v2025.03.14) |
| Jan 4, 2026 | 13.25% (0.13245) | 93.91th | v4 (v2025.03.14) |
| Jan 1, 2026 | 9.99% (0.09991) | 92.86th | v4 (v2025.03.14) |
| Dec 28, 2025 | 13.25% (0.13245) | 93.91th | v4 (v2025.03.14) |
| Dec 27, 2025 | 10.38% (0.10376) | 92.99th | v4 (v2025.03.14) |
| Dec 4, 2025 | 13.25% (0.13245) | 93.87th | v4 (v2025.03.14) |
| Dec 1, 2025 | 11.94% (0.11942) | 93.52th | v4 (v2025.03.14) |
| Nov 4, 2025 | 15.69% (0.15693) | 94.42th | v4 (v2025.03.14) |
| Nov 1, 2025 | 11.94% (0.11942) | 93.50th | v4 (v2025.03.14) |
| Oct 28, 2025 | 15.69% (0.15693) | 94.41th | v4 (v2025.03.14) |
| Oct 27, 2025 | 12.39% (0.12389) | 93.61th | v4 (v2025.03.14) |
| Oct 4, 2025 | 15.69% (0.15693) | 94.46th | v4 (v2025.03.14) |
| Sep 5, 2025 | 12.39% (0.12389) | 93.65th | v4 (v2025.03.14) |
| Sep 1, 2025 | 11.07% (0.11067) | 93.23th | v4 (v2025.03.14) |
| Aug 5, 2025 | 12.39% (0.12389) | 93.61th | v4 (v2025.03.14) |
| Aug 1, 2025 | 11.07% (0.11067) | 93.21th | v4 (v2025.03.14) |
| Jul 30, 2025 | 12.39% (0.12389) | 93.61th | v4 (v2025.03.14) |
| Jul 16, 2025 | 15.69% (0.15693) | 94.38th | v4 (v2025.03.14) |
| Jul 4, 2025 | 9.76% (0.09756) | 92.58th | v4 (v2025.03.14) |
| Jul 1, 2025 | 8.12% (0.08123) | 91.78th | v4 (v2025.03.14) |
| Jun 4, 2025 | 9.76% (0.09756) | 92.52th | v4 (v2025.03.14) |
| Jun 1, 2025 | 8.12% (0.08123) | 91.75th | v4 (v2025.03.14) |
| May 5, 2025 | 9.76% (0.09756) | 92.48th | v4 (v2025.03.14) |
| May 1, 2025 | 8.12% (0.08123) | 91.73th | v4 (v2025.03.14) |
| Apr 22, 2025 | 9.76% (0.09756) | 92.47th | v4 (v2025.03.14) |
| Apr 20, 2025 | 4.50% (0.04501) | 88.49th | v4 (v2025.03.14) |
| Apr 19, 2025 | 3.13% (0.03132) | 86.15th | v4 (v2025.03.14) |
| Apr 16, 2025 | 4.50% (0.04501) | 88.47th | v4 (v2025.03.14) |
| Apr 13, 2025 | 3.13% (0.03132) | 85.76th | v4 (v2025.03.14) |
| Apr 3, 2025 | 4.50% (0.04501) | 88.11th | v4 (v2025.03.14) |
| Mar 30, 2025 | 3.45% (0.03445) | 86.39th | v4 (v2025.03.14) |
| Mar 29, 2025 | 7.66% (0.07664) | 86.20th | v4 (v2025.03.14) |
| Mar 21, 2025 | 3.45% (0.03445) | 86.49th | v4 (v2025.03.14) |
| Mar 20, 2025 | 2.39% (0.02386) | 83.64th | v4 (v2025.03.14) |
| Mar 17, 2025 | 3.45% (0.03445) | 86.69th | v4 (v2025.03.14) |
| Dec 17, 2024 | 9.78% (0.09779) | 94.83th | v3 (v2023.03.01) |
| Feb 8, 2024 | 7.69% (0.07685) | 93.92th | v3 (v2023.03.01) |
| Mar 7, 2023 | 4.75% (0.04750) | 91.39th | v3 (v2023.03.01) |
| Mar 6, 2023 | 7.56% (0.07559) | 92.87th | v2 (v2022.01.01) |
| Jul 18, 2022 | 7.56% (0.07559) | 92.47th | v2 (v2022.01.01) |
| Jul 17, 2022 | 4.36% (0.04358) | 87.36th | v2 (v2022.01.01) |
| Apr 1, 2022 | 7.56% (0.07559) | 92.17th | v2 (v2022.01.01) |
| Feb 4, 2022 | 7.56% (0.07559) | 81.11th | v2 (v2022.01.01) |
References (41)
- ftp://ftp.netbsd.org/pub/NetBSD/security/advisories/NetBSD-SA2009-009.txt.asc vendor-advisoryx_refsource_NETBSDBroken LinkThird Party Advisory
- http://cvs.openssl.org/chngview?cn=18188 x_refsource_CONFIRMBroken LinkPatchVendor Advisory
- http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=c02029444 vendor-advisoryx_refsource_HPBroken LinkThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2009-06/msg00003.html vendor-advisoryx_refsource_SUSEMailing ListThird Party Advisory
- http://lists.vmware.com/pipermail/security-announce/2010/000082.html mailing-listx_refsource_MLISTThird Party Advisory
- http://marc.info/?l=openssl-dev&m=124247679213944&w=2 mailing-listx_refsource_MLISTMailing ListPatchThird Party Advisory
- http://marc.info/?l=openssl-dev&m=124263491424212&w=2 mailing-listx_refsource_MLISTExploitMailing ListThird Party Advisory
- http://rt.openssl.org/Ticket/Display.html?id=1931&user=guest&pass=guest x_refsource_CONFIRMBroken LinkThird Party Advisory
- http://secunia.com/advisories/35128 third-party-advisoryx_refsource_SECUNIANot ApplicableThird Party Advisory
- http://secunia.com/advisories/35416 third-party-advisoryx_refsource_SECUNIANot ApplicableThird Party Advisory
- http://secunia.com/advisories/35461 third-party-advisoryx_refsource_SECUNIANot ApplicableThird Party Advisory
- http://secunia.com/advisories/35571 third-party-advisoryx_refsource_SECUNIANot ApplicableThird Party Advisory
- http://secunia.com/advisories/35729 third-party-advisoryx_refsource_SECUNIANot ApplicableThird Party Advisory
- http://secunia.com/advisories/36533 third-party-advisoryx_refsource_SECUNIANot ApplicableThird Party Advisory
- http://secunia.com/advisories/37003 third-party-advisoryx_refsource_SECUNIANot ApplicableThird Party Advisory
- http://secunia.com/advisories/38761 third-party-advisoryx_refsource_SECUNIANot ApplicableThird Party Advisory
- http://secunia.com/advisories/38794 third-party-advisoryx_refsource_SECUNIANot ApplicableThird Party Advisory
- http://secunia.com/advisories/38834 third-party-advisoryx_refsource_SECUNIANot ApplicableThird Party Advisory
- http://secunia.com/advisories/42724 third-party-advisoryx_refsource_SECUNIANot ApplicableThird Party Advisory
- http://secunia.com/advisories/42733 third-party-advisoryx_refsource_SECUNIANot ApplicableThird Party Advisory
- http://security.gentoo.org/glsa/glsa-200912-01.xml vendor-advisoryx_refsource_GENTOOThird Party Advisory
- http://slackware.com/security/viewer.php?l=slackware-security&y=2010&m=slackware-security.663049 vendor-advisoryx_refsource_SLACKWAREMailing ListThird Party Advisory
- http://sourceforge.net/mailarchive/message.php?msg_name=4AD43807.7080105%40users.sourceforge.net x_refsource_CONFIRMBroken Link
- http://voodoo-circle.sourceforge.net/sa/sa-20091012-01.html x_refsource_CONFIRMThird Party Advisory
- http://www.mandriva.com/security/advisories?name=MDVSA-2009:120 vendor-advisoryx_refsource_MANDRIVANot Applicable
- http://www.openwall.com/lists/oss-security/2009/05/18/1 mailing-listx_refsource_MLISTMailing ListThird Party Advisory
- http://www.redhat.com/support/errata/RHSA-2009-1335.html vendor-advisoryx_refsource_REDHATThird Party Advisory
- http://www.securityfocus.com/bid/35001 vdb-entryx_refsource_BIDBroken LinkThird Party AdvisoryVDB Entry
- http://www.securitytracker.com/id?1022241 vdb-entryx_refsource_SECTRACKBroken LinkThird Party AdvisoryVDB Entry
- http://www.ubuntu.com/usn/USN-792-1 vendor-advisoryx_refsource_UBUNTUThird Party Advisory
- http://www.vupen.com/english/advisories/2009/1377 vdb-entryx_refsource_VUPENPermissions RequiredThird Party Advisory
- http://www.vupen.com/english/advisories/2010/0528 vdb-entryx_refsource_VUPENPermissions RequiredThird Party Advisory
- https://access.redhat.com/security/cve/CVE-2009-1378 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=501254 Issue Tracking
- https://kb.bluecoat.com/index?page=content&id=SA50 x_refsource_CONFIRMBroken Link
- https://launchpad.net/bugs/cve/2009-1378 x_refsource_MISCThird Party Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2009-1378
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11309 vdb-entrysignaturex_refsource_OVALBroken LinkTool Signature
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A7229 vdb-entrysignaturex_refsource_OVALBroken LinkTool Signature
- https://www.cve.org/CVERecord?id=CVE-2009-1378
- https://www.exploit-db.com/exploits/8720 exploitx_refsource_EXPLOIT-DBThird Party AdvisoryVDB Entry
| Link | Providers | Tags |
|---|---|---|
| ftp://ftp.netbsd.org/pub/NetBSD/security/advisories/NetBSD-SA2009-009.txt.asc | vendor-advisoryx_refsource_NETBSDBroken LinkThird Party Advisory | |
| http://cvs.openssl.org/chngview?cn=18188 | x_refsource_CONFIRMBroken LinkPatchVendor Advisory | |
| http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=c02029444 | vendor-advisoryx_refsource_HPBroken LinkThird Party Advisory | |
| http://lists.opensuse.org/opensuse-security-announce/2009-06/msg00003.html | vendor-advisoryx_refsource_SUSEMailing ListThird Party Advisory | |
| http://lists.vmware.com/pipermail/security-announce/2010/000082.html | mailing-listx_refsource_MLISTThird Party Advisory | |
| http://marc.info/?l=openssl-dev&m=124247679213944&w=2 | mailing-listx_refsource_MLISTMailing ListPatchThird Party Advisory | |
| http://marc.info/?l=openssl-dev&m=124263491424212&w=2 | mailing-listx_refsource_MLISTExploitMailing ListThird Party Advisory | |
| http://rt.openssl.org/Ticket/Display.html?id=1931&user=guest&pass=guest | x_refsource_CONFIRMBroken LinkThird Party Advisory | |
| http://secunia.com/advisories/35128 | third-party-advisoryx_refsource_SECUNIANot ApplicableThird Party Advisory | |
| http://secunia.com/advisories/35416 | third-party-advisoryx_refsource_SECUNIANot ApplicableThird Party Advisory | |
| http://secunia.com/advisories/35461 | third-party-advisoryx_refsource_SECUNIANot ApplicableThird Party Advisory | |
| http://secunia.com/advisories/35571 | third-party-advisoryx_refsource_SECUNIANot ApplicableThird Party Advisory | |
| http://secunia.com/advisories/35729 | third-party-advisoryx_refsource_SECUNIANot ApplicableThird Party Advisory | |
| http://secunia.com/advisories/36533 | third-party-advisoryx_refsource_SECUNIANot ApplicableThird Party Advisory | |
| http://secunia.com/advisories/37003 | third-party-advisoryx_refsource_SECUNIANot ApplicableThird Party Advisory | |
| http://secunia.com/advisories/38761 | third-party-advisoryx_refsource_SECUNIANot ApplicableThird Party Advisory | |
| http://secunia.com/advisories/38794 | third-party-advisoryx_refsource_SECUNIANot ApplicableThird Party Advisory | |
| http://secunia.com/advisories/38834 | third-party-advisoryx_refsource_SECUNIANot ApplicableThird Party Advisory | |
| http://secunia.com/advisories/42724 | third-party-advisoryx_refsource_SECUNIANot ApplicableThird Party Advisory | |
| http://secunia.com/advisories/42733 | third-party-advisoryx_refsource_SECUNIANot ApplicableThird Party Advisory | |
| http://security.gentoo.org/glsa/glsa-200912-01.xml | vendor-advisoryx_refsource_GENTOOThird Party Advisory | |
| http://slackware.com/security/viewer.php?l=slackware-security&y=2010&m=slackware-security.663049 | vendor-advisoryx_refsource_SLACKWAREMailing ListThird Party Advisory | |
| http://sourceforge.net/mailarchive/message.php?msg_name=4AD43807.7080105%40users.sourceforge.net | x_refsource_CONFIRMBroken Link | |
| http://voodoo-circle.sourceforge.net/sa/sa-20091012-01.html | x_refsource_CONFIRMThird Party Advisory | |
| http://www.mandriva.com/security/advisories?name=MDVSA-2009:120 | vendor-advisoryx_refsource_MANDRIVANot Applicable | |
| http://www.openwall.com/lists/oss-security/2009/05/18/1 | mailing-listx_refsource_MLISTMailing ListThird Party Advisory | |
| http://www.redhat.com/support/errata/RHSA-2009-1335.html | vendor-advisoryx_refsource_REDHATThird Party Advisory | |
| http://www.securityfocus.com/bid/35001 | vdb-entryx_refsource_BIDBroken LinkThird Party AdvisoryVDB Entry | |
| http://www.securitytracker.com/id?1022241 | vdb-entryx_refsource_SECTRACKBroken LinkThird Party AdvisoryVDB Entry | |
| http://www.ubuntu.com/usn/USN-792-1 | vendor-advisoryx_refsource_UBUNTUThird Party Advisory | |
| http://www.vupen.com/english/advisories/2009/1377 | vdb-entryx_refsource_VUPENPermissions RequiredThird Party Advisory | |
| http://www.vupen.com/english/advisories/2010/0528 | vdb-entryx_refsource_VUPENPermissions RequiredThird Party Advisory | |
| https://access.redhat.com/security/cve/CVE-2009-1378 | Vendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=501254 | Issue Tracking | |
| https://kb.bluecoat.com/index?page=content&id=SA50 | x_refsource_CONFIRMBroken Link | |
| https://launchpad.net/bugs/cve/2009-1378 | x_refsource_MISCThird Party Advisory | |
| https://nvd.nist.gov/vuln/detail/CVE-2009-1378 | ||
| https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11309 | vdb-entrysignaturex_refsource_OVALBroken LinkTool Signature | |
| https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A7229 | vdb-entrysignaturex_refsource_OVALBroken LinkTool Signature | |
| https://www.cve.org/CVERecord?id=CVE-2009-1378 | ||
| https://www.exploit-db.com/exploits/8720 | exploitx_refsource_EXPLOIT-DBThird Party AdvisoryVDB Entry |
Change history (0)
No recorded changes yet.