MEDIUM
OpenSSL: DTLS epoch record buffer memory DoS
Published May 19, 2009
5.0
MEDIUMCVSS 2.0
EPSS 11.27%
Description
The dtls1_buffer_record function in ssl/d1_pkt.c in OpenSSL 0.9.8k and earlier 0.9.8 versions allows remote attackers to cause a denial of service (memory consumption) via a large series of "future epoch" DTLS records that are buffered in a queue, aka "DTLS record buffer limitation bug."
Affected products
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.
5.0 MEDIUM NVD
AV:N/AC:L/Au:N/C:N/I:N/A:P
Access Vector Network
Access Complexity Low
Authentication None
Confidentiality Impact None
Integrity Impact None
Availability Impact Partial
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
11.27% 0.11274
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 2, 2026.
EPSS probability 0.11274
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 (34 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 2, 2026 | 11.27% (0.11274) | 95.85th | v5 (v2026.06.15) |
| Jun 15, 2026 | 11.27% (0.11274) | 95.40th | v5 (v2026.06.15) |
| Mar 4, 2026 | 2.88% (0.02884) | 86.07th | v4 (v2025.03.14) |
| Mar 1, 2026 | 1.81% (0.01807) | 82.61th | v4 (v2025.03.14) |
| Feb 4, 2026 | 2.88% (0.02884) | 85.96th | v4 (v2025.03.14) |
| Feb 1, 2026 | 1.81% (0.01807) | 82.49th | v4 (v2025.03.14) |
| Jan 4, 2026 | 2.88% (0.02884) | 85.90th | v4 (v2025.03.14) |
| Jan 1, 2026 | 1.81% (0.01807) | 82.44th | v4 (v2025.03.14) |
| Dec 21, 2025 | 2.88% (0.02884) | 85.87th | v4 (v2025.03.14) |
| Dec 4, 2025 | 4.31% (0.04306) | 88.44th | v4 (v2025.03.14) |
| Dec 1, 2025 | 2.13% (0.02129) | 83.69th | v4 (v2025.03.14) |
| Nov 4, 2025 | 3.44% (0.03442) | 86.98th | v4 (v2025.03.14) |
| Nov 1, 2025 | 2.13% (0.02129) | 83.65th | v4 (v2025.03.14) |
| Oct 4, 2025 | 3.44% (0.03442) | 87.01th | v4 (v2025.03.14) |
| Oct 1, 2025 | 2.13% (0.02129) | 83.59th | v4 (v2025.03.14) |
| May 4, 2025 | 3.44% (0.03442) | 86.83th | v4 (v2025.03.14) |
| May 1, 2025 | 2.13% (0.02129) | 83.27th | v4 (v2025.03.14) |
| Apr 17, 2025 | 4.44% (0.04437) | 88.40th | v4 (v2025.03.14) |
| Apr 16, 2025 | 2.77% (0.02767) | 85.20th | v4 (v2025.03.14) |
| Apr 15, 2025 | 4.44% (0.04437) | 88.37th | v4 (v2025.03.14) |
| Apr 14, 2025 | 2.77% (0.02767) | 84.83th | v4 (v2025.03.14) |
| Apr 5, 2025 | 4.44% (0.04437) | 88.04th | v4 (v2025.03.14) |
| Apr 4, 2025 | 2.77% (0.02767) | 84.82th | v4 (v2025.03.14) |
| Mar 30, 2025 | 4.44% (0.04437) | 88.00th | v4 (v2025.03.14) |
| Mar 29, 2025 | 6.44% (0.06439) | 84.66th | v4 (v2025.03.14) |
| Mar 17, 2025 | 4.03% (0.04025) | 87.71th | v4 (v2025.03.14) |
| Dec 12, 2024 | 5.85% (0.05845) | 93.68th | v3 (v2023.03.01) |
| Feb 8, 2024 | 5.85% (0.05845) | 93.11th | v3 (v2023.03.01) |
| Mar 7, 2023 | 5.30% (0.05302) | 91.84th | 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) |
Weaknesses (1)
References (39)
- 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=18187 x_refsource_CONFIRMBroken LinkPatchThird Party 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_SUSEThird 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=124247675613888&w=2 mailing-listx_refsource_MLISTMailing ListPatchThird Party Advisory
- http://rt.openssl.org/Ticket/Display.html?id=1930&user=guest&pass=guest x_refsource_CONFIRMBroken LinkMailing ListPatchThird Party Advisory
- http://secunia.com/advisories/35128 third-party-advisoryx_refsource_SECUNIAThird Party AdvisoryVendor Advisory
- http://secunia.com/advisories/35416 third-party-advisoryx_refsource_SECUNIAThird Party Advisory
- http://secunia.com/advisories/35461 third-party-advisoryx_refsource_SECUNIAThird Party Advisory
- http://secunia.com/advisories/35571 third-party-advisoryx_refsource_SECUNIAThird Party Advisory
- http://secunia.com/advisories/35729 third-party-advisoryx_refsource_SECUNIAThird Party Advisory
- http://secunia.com/advisories/36533 third-party-advisoryx_refsource_SECUNIAThird Party Advisory
- http://secunia.com/advisories/37003 third-party-advisoryx_refsource_SECUNIAThird Party Advisory
- http://secunia.com/advisories/38761 third-party-advisoryx_refsource_SECUNIAThird Party Advisory
- http://secunia.com/advisories/38794 third-party-advisoryx_refsource_SECUNIAThird Party Advisory
- http://secunia.com/advisories/38834 third-party-advisoryx_refsource_SECUNIAThird Party Advisory
- http://secunia.com/advisories/42724 third-party-advisoryx_refsource_SECUNIAThird Party Advisory
- http://secunia.com/advisories/42733 third-party-advisoryx_refsource_SECUNIAThird 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_MANDRIVABroken Link
- http://www.openwall.com/lists/oss-security/2009/05/18/1 mailing-listx_refsource_MLISTMailing List
- 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_BIDThird Party AdvisoryVDB Entry
- http://www.securitytracker.com/id?1022241 vdb-entryx_refsource_SECTRACKThird 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-2009-1377 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=501253 Issue Tracking
- https://kb.bluecoat.com/index?page=content&id=SA50 x_refsource_CONFIRMBroken Link
- https://launchpad.net/bugs/cve/2009-1377 x_refsource_MISCThird Party Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2009-1377
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6683 vdb-entrysignaturex_refsource_OVALTool Signature
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9663 vdb-entrysignaturex_refsource_OVALTool Signature
- https://www.cve.org/CVERecord?id=CVE-2009-1377
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner redhat
Published May 19, 2009
Updated Aug 7, 2024
Reserved Apr 23, 2009
Link CVE-2009-1377
CISA Vulnrichment
Updated n/a