The (1) TLS and (2) DTLS implementations in OpenSSL 1.0.1 before 1.0.1g do not properly handle Heartbeat Extension packets, which allows remote attackers to obtain sensitive information from process memory via crafted packets that trigger a buffer over-read, as demonstrated by reading private keys, related to d1_both.c and t1_lib.c, aka the Heartbleed bug.

Threat-Mapped Scoring

Score: 3.0

Priority: P2 - Serious (High)

• S1 – Steal Customer Account Information

EPSS

Score: 0.94462
Percentile: 0.99994

CVSS Scoring

KEV is present

Mapped CWE(s)

• CWE-125 : Out-of-bounds Read

All CAPEC(s)

CAPEC(s) with Mapped TTPs

Mapped ATT&CK TTPs

Affected Products

• cpe:2.3:a:openssl:openssl:*:*:*:*:*:*:*:*
• cpe:2.3:a:filezilla-project:filezilla_server:*:*:*:*:*:*:*:*
• cpe:2.3:o:siemens:application_processing_engine_firmware:2.0:*:*:*:*:*:*:*
• cpe:2.3:o:siemens:cp_1543-1_firmware:1.1:*:*:*:*:*:*:*
• cpe:2.3:o:siemens:simatic_s7-1500_firmware:1.5:*:*:*:*:*:*:*
• cpe:2.3:o:siemens:simatic_s7-1500t_firmware:1.5:*:*:*:*:*:*:*
• cpe:2.3:a:siemens:elan-8.2:*:*:*:*:*:*:*:*
• cpe:2.3:a:siemens:wincc_open_architecture:3.12:*:*:*:*:*:*:*
• cpe:2.3:o:intellian:v100_firmware:1.20:*:*:*:*:*:*:*
• cpe:2.3:o:intellian:v100_firmware:1.21:*:*:*:*:*:*:*
• cpe:2.3:o:intellian:v100_firmware:1.24:*:*:*:*:*:*:*
• cpe:2.3:o:intellian:v60_firmware:1.15:*:*:*:*:*:*:*
• cpe:2.3:o:intellian:v60_firmware:1.25:*:*:*:*:*:*:*
• cpe:2.3:a:mitel:micollab:6.0:*:*:*:*:*:*:*
• cpe:2.3:a:mitel:micollab:7.0:*:*:*:*:*:*:*
• cpe:2.3:a:mitel:micollab:7.1:*:*:*:*:*:*:*
• cpe:2.3:a:mitel:micollab:7.2:*:*:*:*:*:*:*
• cpe:2.3:a:mitel:micollab:7.3:*:*:*:*:*:*:*
• cpe:2.3:a:mitel:micollab:7.3.0.104:*:*:*:*:*:*:*
• cpe:2.3:a:mitel:mivoice:1.1.2.5:*:*:*:*:lync:*:*
• cpe:2.3:a:mitel:mivoice:1.1.3.3:*:*:*:*:skype_for_business:*:*
• cpe:2.3:a:mitel:mivoice:1.2.0.11:*:*:*:*:skype_for_business:*:*
• cpe:2.3:a:mitel:mivoice:1.3.2.2:*:*:*:*:skype_for_business:*:*
• cpe:2.3:a:mitel:mivoice:1.4.0.102:*:*:*:*:skype_for_business:*:*
• cpe:2.3:o:opensuse:opensuse:12.3:*:*:*:*:*:*:*
• cpe:2.3:o:opensuse:opensuse:13.1:*:*:*:*:*:*:*
• cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:esm:*:*:*
• cpe:2.3:o:canonical:ubuntu_linux:12.10:*:*:*:*:*:*:*
• cpe:2.3:o:canonical:ubuntu_linux:13.10:*:*:*:*:*:*:*
• cpe:2.3:o:fedoraproject:fedora:19:*:*:*:*:*:*:*
• cpe:2.3:o:fedoraproject:fedora:20:*:*:*:*:*:*:*
• cpe:2.3:a:redhat:gluster_storage:2.1:*:*:*:*:*:*:*
• cpe:2.3:a:redhat:storage:2.1:*:*:*:*:*:*:*
• cpe:2.3:a:redhat:virtualization:6.0:*:*:*:*:*:*:*
• cpe:2.3:o:redhat:enterprise_linux_desktop:6.0:*:*:*:*:*:*:*
• cpe:2.3:o:redhat:enterprise_linux_server:6.0:*:*:*:*:*:*:*
• cpe:2.3:o:redhat:enterprise_linux_server_aus:6.5:*:*:*:*:*:*:*
• cpe:2.3:o:redhat:enterprise_linux_server_eus:6.5:*:*:*:*:*:*:*
• cpe:2.3:o:redhat:enterprise_linux_server_tus:6.5:*:*:*:*:*:*:*
• cpe:2.3:o:redhat:enterprise_linux_workstation:6.0:*:*:*:*:*:*:*
• cpe:2.3:o:debian:debian_linux:6.0:*:*:*:*:*:*:*
• cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:*
• cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
• cpe:2.3:o:ricon:s9922l_firmware:16.10.3\(3794\):*:*:*:*:*:*:*
• cpe:2.3:a:broadcom:symantec_messaging_gateway:10.6.0:*:*:*:*:*:*:*
• cpe:2.3:a:broadcom:symantec_messaging_gateway:10.6.1:*:*:*:*:*:*:*
• cpe:2.3:a:splunk:splunk:*:*:*:*:enterprise:*:*:*

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