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Vulnerability Assessment

Impact

CVSS score of 4.3 (MEDIUM). Attack characteristics: network attack vector, M complexity. EPSS exploitation probability: 82.10%.

Exploit ScenarioDerived

This vulnerability can be exploited remotely over the network. Successful exploitation could compromise the medium-severity affected system.

This Month Plan within 30 days. Why: MEDIUM severity (CVSS 4.0-6.9).
Patch available 82.1% exploitation probability (EPSS)

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AnalysisAI

The dtls1_get_message_fragment function in d1_both.c in OpenSSL before 0.9.8za, 1.0.0 before 1.0.0m, and 1.0.1 before 1.0.1h allows remote attackers to cause a denial of service (recursion and client. Rated medium severity (CVSS 4.3), this vulnerability is remotely exploitable. Epss exploitation probability 82.1%.

RemediationAI

A vendor patch is available. Apply the latest security update as soon as possible. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.

Affects your stack

Find out whether the stacks and servers you run are on an affected version.

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

The dtls1_get_message_fragment function in d1_both.c in OpenSSL before 0.9.8za, 1.0.0 before 1.0.0m, and 1.0.1 before 1.0.1h allows remote attackers to cause a denial of service (recursion and client crash) via a DTLS hello message in an invalid DTLS handshake. Affected products include: Openssl, Redhat Storage, Fedoraproject Fedora, Redhat Enterprise Linux, Mariadb. Version information: before 0.9.8.

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  • Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

NVD PRIMARY 4.3 MEDIUM
AV:N/AC:M/Au:N/C:N/I:N/A:P

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector
Network
Attack Complexity
M
Confidentiality
None
Integrity
None
Availability
P

DescriptionCVE.org

The dtls1_get_message_fragment function in d1_both.c in OpenSSL before 0.9.8za, 1.0.0 before 1.0.0m, and 1.0.1 before 1.0.1h allows remote attackers to cause a denial of service (recursion and client crash) via a DTLS hello message in an invalid DTLS handshake.

Threat Intelligence Overview

EPSS Score
82.1%
Top 1% exploitable
Data Quality
3 sources
Confidence: Low

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity MEDIUM
CISA KEV No
Public POC No
EPSS 82.1%
Patch available Yes
Active threat No
Deciding rule
MEDIUM severity (CVSS 4.0-6.9)
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived
Scheduled
Exploitation· derived
None
System Exposure· derived
Open
Automatable· derived
No
Human Impact· derived
Medium

Priority Score

104
Low Medium High Critical
KEV: 0
EPSS: +82
CVSS: +22
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Denial of Service attacks render applications or systems unavailable by overwhelming resources or triggering failure conditions.

Affected Products (CPE)CVE.org

cpe:2.3:a:openssl:openssl:*:*:*:*:*:*:*:*
cpe:2.3:a:openssl:openssl:*:*:*:*:*:*:*:*
cpe:2.3:a:openssl:openssl:*:*:*:*:*:*:*:*
cpe:2.3:a:redhat:storage:2.1:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:*:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux:5:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux:6.0:*:*:*:*:*:*:*
cpe:2.3:a:mariadb:mariadb:*:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:19:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:20:*:*:*:*:*:*:*
cpe:2.3:o:opensuse:leap:42.1:*:*:*:*:*:*:*
cpe:2.3:o:opensuse:opensuse:13.2:*:*:*:*:*:*:*
cpe:2.3:o:suse:linux_enterprise_desktop:12:-:*:*:*:*:*:*
cpe:2.3:o:suse:linux_enterprise_server:12:-:*:*:*:*:*:*
cpe:2.3:o:suse:linux_enterprise_software_development_kit:12:-:*:*:*:*:*:*
cpe:2.3:o:suse:linux_enterprise_workstation_extension:12:-:*:*:*:*:*:*
CVE-2014-0160 HIGH POC
7.5 Apr 07

The (1) TLS and (2) DTLS implementations in OpenSSL 1.0.1 before 1.0.1g do not properly handle Heartbeat Extension packe

CVE-2021-3711 CRITICAL POC
9.8 Aug 24

In order to decrypt SM2 encrypted data an application is expected to call the API function EVP_PKEY_decrypt(). Rated cri

CVE-2014-0195 MEDIUM POC
6.8 Jun 05

The dtls1_reassemble_fragment function in d1_both.c in OpenSSL before 0.9.8za, 1.0.0 before 1.0.0m, and 1.0.1 before 1.0

CVE-2014-0224 HIGH POC
7.4 Jun 05

OpenSSL before 0.9.8za, 1.0.0 before 1.0.0m, and 1.0.1 before 1.0.1h does not properly restrict processing of ChangeCiph

CVE-2016-0800 MEDIUM POC
5.9 Mar 01

The SSLv2 protocol, as used in OpenSSL before 1.0.1s and 1.0.2 before 1.0.2g and other products, requires a server to se

CVE-2015-0204 MEDIUM POC
4.3 Jan 09

The ssl3_get_key_exchange function in s3_clnt.c in OpenSSL before 0.9.8zd, 1.0.0 before 1.0.0p, and 1.0.1 before 1.0.1k

CVE-2022-2068 HIGH
7.3 Jun 21

In addition to the c_rehash shell command injection identified in CVE-2022-1292, further circumstances where the c_rehas

CVE-2015-4000 LOW POC
3.7 May 21

The TLS protocol 1.2 and earlier, when a DHE_EXPORT ciphersuite is enabled on a server but not on a client, does not pro

CVE-2014-3566 LOW POC
3.4 Oct 15

The SSL protocol 3.0, as used in OpenSSL through 1.0.1i and other products, uses nondeterministic CBC padding, which mak

CVE-2016-2107 MEDIUM POC
5.9 May 05

The AES-NI implementation in OpenSSL before 1.0.1t and 1.0.2 before 1.0.2h does not consider memory allocation during a

CVE-2015-1793 MEDIUM POC
6.5 Jul 09

The X509_verify_cert function in crypto/x509/x509_vfy.c in OpenSSL 1.0.1n, 1.0.1o, 1.0.2b, and 1.0.2c does not properly

CVE-2022-3602 HIGH
7.5 Nov 01

A buffer overrun can be triggered in X.509 certificate verification, specifically in name constraint checking. Rated hig

References

Advisories & patches
PATCH http://www.oracle.com/technetwork/security-advisory/cpuoct2017-3236626.html PATCH https://bugzilla.redhat.com/show_bug.cgi?id=1103593 ADVISORY http://www.openssl.org/news/secadv_20140605.txt REF http://aix.software.ibm.com/aix/efixes/security/openssl_advisory9.asc REF http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10629 REF http://linux.oracle.com/errata/ELSA-2014-1053.html REF http://lists.fedoraproject.org/pipermail/package-announce/2014-August/136470.html REF http://lists.fedoraproject.org/pipermail/package-announce/2014-August/136473.html REF http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00016.html REF http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00011.html REF http://marc.info/?l=bugtraq&m=140266410314613&w=2 REF http://marc.info/?l=bugtraq&m=140317760000786&w=2 REF http://marc.info/?l=bugtraq&m=140389274407904&w=2 REF http://marc.info/?l=bugtraq&m=140389355508263&w=2 REF http://marc.info/?l=bugtraq&m=140431828824371&w=2 REF http://marc.info/?l=bugtraq&m=140448122410568&w=2 REF http://marc.info/?l=bugtraq&m=140482916501310&w=2 REF http://marc.info/?l=bugtraq&m=140491231331543&w=2 REF http://marc.info/?l=bugtraq&m=140499827729550&w=2 REF http://marc.info/?l=bugtraq&m=140621259019789&w=2 REF http://marc.info/?l=bugtraq&m=140752315422991&w=2 REF http://marc.info/?l=bugtraq&m=140904544427729&w=2 REF http://rhn.redhat.com/errata/RHSA-2014-1021.html REF http://seclists.org/fulldisclosure/2014/Dec/23 REF http://secunia.com/advisories/58337 REF http://secunia.com/advisories/58615 REF http://secunia.com/advisories/58713 REF http://secunia.com/advisories/58714 REF http://secunia.com/advisories/58939 REF http://secunia.com/advisories/58945 REF http://secunia.com/advisories/58977 REF http://secunia.com/advisories/59027 REF http://secunia.com/advisories/59120 REF http://secunia.com/advisories/59126 REF http://secunia.com/advisories/59162 REF http://secunia.com/advisories/59167 REF http://secunia.com/advisories/59175 REF http://secunia.com/advisories/59189 REF http://secunia.com/advisories/59192 REF http://secunia.com/advisories/59221 REF http://secunia.com/advisories/59284 REF http://secunia.com/advisories/59287 REF http://secunia.com/advisories/59300 REF http://secunia.com/advisories/59301 REF http://secunia.com/advisories/59306 REF http://secunia.com/advisories/59310 REF http://secunia.com/advisories/59342 REF http://secunia.com/advisories/59364 REF http://secunia.com/advisories/59365 REF http://secunia.com/advisories/59413 REF http://secunia.com/advisories/59429 REF http://secunia.com/advisories/59437 REF http://secunia.com/advisories/59441 REF http://secunia.com/advisories/59449 REF http://secunia.com/advisories/59450 REF http://secunia.com/advisories/59451 REF http://secunia.com/advisories/59454 REF http://secunia.com/advisories/59460 REF http://secunia.com/advisories/59490 REF http://secunia.com/advisories/59491 REF http://secunia.com/advisories/59495 REF http://secunia.com/advisories/59514 REF http://secunia.com/advisories/59518 REF http://secunia.com/advisories/59528 REF http://secunia.com/advisories/59655 REF http://secunia.com/advisories/59659 REF http://secunia.com/advisories/59666 REF http://secunia.com/advisories/59669 REF http://secunia.com/advisories/59721 REF http://secunia.com/advisories/59784 REF http://secunia.com/advisories/59895 REF http://secunia.com/advisories/59990 REF http://secunia.com/advisories/60571 REF http://secunia.com/advisories/60687 REF http://secunia.com/advisories/61254 REF http://security.gentoo.org/glsa/glsa-201407-05.xml REF http://support.apple.com/kb/HT6443 REF http://support.citrix.com/article/CTX140876 REF http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20140605-openssl REF http://www-01.ibm.com/support/docview.wss?uid=isg400001841 REF http://www-01.ibm.com/support/docview.wss?uid=isg400001843 REF http://www-01.ibm.com/support/docview.wss?uid=nas8N1020163 REF http://www-01.ibm.com/support/docview.wss?uid=swg21673137 REF http://www-01.ibm.com/support/docview.wss?uid=swg21675821 REF http://www-01.ibm.com/support/docview.wss?uid=swg21676035 REF http://www-01.ibm.com/support/docview.wss?uid=swg21676062 REF http://www-01.ibm.com/support/docview.wss?uid=swg21676071 REF http://www-01.ibm.com/support/docview.wss?uid=swg21676419 REF http://www-01.ibm.com/support/docview.wss?uid=swg21676879 REF http://www-01.ibm.com/support/docview.wss?uid=swg21676889 REF http://www-01.ibm.com/support/docview.wss?uid=swg21677527 REF http://www-01.ibm.com/support/docview.wss?uid=swg21677695 REF http://www-01.ibm.com/support/docview.wss?uid=swg21677828 REF http://www-01.ibm.com/support/docview.wss?uid=swg21678167 REF http://www-01.ibm.com/support/docview.wss?uid=swg21678289 REF http://www-01.ibm.com/support/docview.wss?uid=swg21683332 REF http://www-947.ibm.com/support/entry/portal/docdisplay?lndocid=MIGR-5095754 REF http://www-947.ibm.com/support/entry/portal/docdisplay?lndocid=MIGR-5095755 REF http://www-947.ibm.com/support/entry/portal/docdisplay?lndocid=MIGR-5095756 REF http://www-947.ibm.com/support/entry/portal/docdisplay?lndocid=MIGR-5095757 REF http://www.blackberry.com/btsc/KB36051 REF http://www.fortiguard.com/advisory/FG-IR-14-018/ REF http://www.huawei.com/en/security/psirt/security-bulletins/security-advisories/hw-345106.htm REF http://www.ibm.com/support/docview.wss?uid=swg21676226 REF http://www.ibm.com/support/docview.wss?uid=swg21676356 REF http://www.ibm.com/support/docview.wss?uid=swg21676793 REF http://www.ibm.com/support/docview.wss?uid=swg24037783 REF http://www.mandriva.com/security/advisories?name=MDVSA-2014:105 REF http://www.mandriva.com/security/advisories?name=MDVSA-2014:106 REF http://www.mandriva.com/security/advisories?name=MDVSA-2015:062 REF http://www.novell.com/support/kb/doc.php?id=7015264 REF http://www.novell.com/support/kb/doc.php?id=7015300 REF http://www.oracle.com/technetwork/topics/security/cpujan2015-1972971.html REF http://www.oracle.com/technetwork/topics/security/cpujul2014-1972956.html REF http://www.oracle.com/technetwork/topics/security/cpuoct2014-1972960.html REF http://www.securityfocus.com/archive/1/534161/100/0/threaded REF http://www.securityfocus.com/bid/67901 REF http://www.securitytracker.com/id/1030337 REF http://www.vmware.com/security/advisories/VMSA-2014-0006.html REF http://www.vmware.com/security/advisories/VMSA-2014-0012.html REF http://www14.software.ibm.com/webapp/set2/subscriptions/pqvcmjd?mode=18&ID=6060&myns=phmc&mync=E REF http://www14.software.ibm.com/webapp/set2/subscriptions/pqvcmjd?mode=18&ID=6061&myns=phmc&mync=E REF https://git.openssl.org/gitweb/?p=openssl.git%3Ba=commit%3Bh=d3152655d5319ce883c8e3ac4b99f8de4c59d846 REF https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05301946 REF https://kb.bluecoat.com/index?page=content&id=SA80 REF https://kc.mcafee.com/corporate/index?page=content&id=SB10075 REF https://www.novell.com/support/kb/doc.php?id=7015271

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