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CVE-2016-0702

The MOD_EXP_CTIME_COPY_FROM_PREBUF function in crypto/bn/bn_exp.c in OpenSSL 1.0.1 before 1.0.1s and 1.0.2 before 1.0.2g does not properly consider cache-bank access times during modular exponentiation, which makes it easier for local users to discover RSA keys by running a crafted application on the same Intel Sandy Bridge CPU core as a victim and leveraging cache-bank conflicts, aka a "CacheBleed" attack.

Published:Mar 1, 2016

Last Modified:Apr 12, 2025

EPS:Mar 3, 2016

EPSS Score:0.00412

CVSS Score:5.1

Affected Products

Vendor

Product

Action

Vendor

Canonical

Product

Ubuntu Linux

Canonical

Ubuntu Linux

Vendor

Debian

Product

Debian Linux

Debian

Debian Linux

Vendor

Nodejs

Product

Node.js

Nodejs

Node.js

Vendor

Openssl

Product

Openssl

Openssl

Openssl

Vendor

Redhat

Product

Enterprise Linux

Redhat

Enterprise Linux

Vendor

Redhat

Product

Jboss Core Services

Redhat

Jboss Core Services

Exploits

https://github.com/Trinadh465/OpenSSL-1_0_1g_CVE-2016-0702

Common Weakness Enumeration

CWE-200 Exposure of Sensitive Information to an Unauthorized Actor

Common Attack Pattern Enumeration and Classification (CAPEC)

CAPEC-116 Excavation

CAPEC-13 Subverting Environment Variable Values

CAPEC-169 Footprinting

CAPEC-22 Exploiting Trust in Client

CAPEC-224 Fingerprinting

CAPEC-285 ICMP Echo Request Ping

CAPEC-287 TCP SYN Scan

CAPEC-290 Enumerate Mail Exchange (MX) Records

CAPEC-291 DNS Zone Transfers

CAPEC-292 Host Discovery

CAPEC-293 Traceroute Route Enumeration

CAPEC-294 ICMP Address Mask Request

CAPEC-295 Timestamp Request

CAPEC-296 ICMP Information Request

CAPEC-297 TCP ACK Ping

CAPEC-298 UDP Ping

CAPEC-299 TCP SYN Ping

CAPEC-300 Port Scanning

CAPEC-301 TCP Connect Scan

CAPEC-302 TCP FIN Scan

CAPEC-303 TCP Xmas Scan

CAPEC-304 TCP Null Scan

CAPEC-305 TCP ACK Scan

CAPEC-306 TCP Window Scan

CAPEC-307 TCP RPC Scan

CAPEC-308 UDP Scan

CAPEC-309 Network Topology Mapping

CAPEC-310 Scanning for Vulnerable Software

CAPEC-312 Active OS Fingerprinting

CAPEC-313 Passive OS Fingerprinting

CAPEC-317 IP ID Sequencing Probe

CAPEC-318 IP 'ID' Echoed Byte-Order Probe

CAPEC-319 IP (DF) 'Don't Fragment Bit' Echoing Probe

CAPEC-320 TCP Timestamp Probe

CAPEC-321 TCP Sequence Number Probe

CAPEC-322 TCP (ISN) Greatest Common Divisor Probe

CAPEC-323 TCP (ISN) Counter Rate Probe

CAPEC-324 TCP (ISN) Sequence Predictability Probe

CAPEC-325 TCP Congestion Control Flag (ECN) Probe

CAPEC-326 TCP Initial Window Size Probe

CAPEC-327 TCP Options Probe

CAPEC-328 TCP 'RST' Flag Checksum Probe

CAPEC-329 ICMP Error Message Quoting Probe

CAPEC-330 ICMP Error Message Echoing Integrity Probe

CAPEC-472 Browser Fingerprinting

CAPEC-497 File Discovery

CAPEC-508 Shoulder Surfing

CAPEC-573 Process Footprinting

CAPEC-574 Services Footprinting

CAPEC-575 Account Footprinting

CAPEC-576 Group Permission Footprinting

CAPEC-577 Owner Footprinting

CAPEC-59 Session Credential Falsification through Prediction

CAPEC-60 Reusing Session IDs (aka Session Replay)

CAPEC-616 Establish Rogue Location

CAPEC-643 Identify Shared Files/Directories on System

CAPEC-646 Peripheral Footprinting

CAPEC-651 Eavesdropping

CAPEC-79 Using Slashes in Alternate Encoding

Related CVEs

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CVE-2026-47337 (CVSS 3.3) — Ubuntu Linux 6.8, 6.17 and 7.0 contain SAUCE patches with a possible NULL pointer dereference in the handling …

CVE-2026-47336 (CVSS 3.3) — Ubuntu Linux 6.8 contains SAUCE patches with a possible use of an uninitialized variable in AppArmor AF_INET/A…

CVE-2026-47335 (CVSS 5.5) — Ubuntu Linux 6.8 contains SAUCE patches with a possible NULL pointer dereference in the handling of AppArmor n…

CVE-2026-47334 (CVSS 5.5) — Ubuntu Linux 6.8, 6.17 and 7.0 contain AppArmor SAUCE patches which incorrectly sleep while holding a spinlock…

CVE-2026-47333 (CVSS 7.8) — Ubuntu Linux 6.8, 6.17 and 7.0 contain AppArmor SAUCE patches which can potentially incorrectly compute the si…

CVE-2026-47332 (CVSS 5.5) — Ubuntu Linux 6.8, 6.17 and 7.0 contain AppArmor SAUCE patches which incorrectly validate the size of an intern…

CVE-2026-47331 (CVSS 7.8) — Ubuntu Linux 6.8 contains AppArmor SAUCE patches which fail to acquire a lock when modifying a linked list. An…

CVE-2026-47330 (CVSS 3.3) — Ubuntu Linux 6.8, 7.17 and 7.0 contain AppArmor SAUCE patches which can, under certain circumstances, use an u…

References

http://cachebleed.info

http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10759

http://lists.fedoraproject.org/pipermail/package-announce/2016-March/178358.html

http://lists.fedoraproject.org/pipermail/package-announce/2016-March/178817.html

http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00001.html

http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00002.html

http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00003.html

http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00004.html

http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00005.html

http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00006.html

http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00007.html

http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00009.html

http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00010.html

http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00012.html

http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00025.html

http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00038.html

http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00015.html

http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00017.html

http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00018.html

http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00029.html

http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00030.html

http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00036.html

http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00055.html

http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00019.html

http://marc.info/?l=bugtraq&m=145889460330120&w=2

http://openssl.org/news/secadv/20160301.txt

http://rhn.redhat.com/errata/RHSA-2016-2957.html

http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20160302-openssl

http://www.debian.org/security/2016/dsa-3500

http://www.oracle.com/technetwork/security-advisory/cpuapr2016v3-2985753.html

http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html

http://www.oracle.com/technetwork/topics/security/linuxbulletinjan2016-2867209.html

http://www.securitytracker.com/id/1035133

http://www.ubuntu.com/usn/USN-2914-1

https://cert-portal.siemens.com/productcert/pdf/ssa-412672.pdf

https://git.openssl.org/?p=openssl.git%3Ba=commit%3Bh=708dc2f1291e104fe4eef810bb8ffc1fae5b19c1

https://h20566.www2.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbhf03741en_us

https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05052990

https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05376917

https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05390722

https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA40168

https://security.FreeBSD.org/advisories/FreeBSD-SA-16:12.openssl.asc

https://security.gentoo.org/glsa/201603-15

https://www.openssl.org/news/secadv/20160301.txt

http://cachebleed.info

http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10759

http://lists.fedoraproject.org/pipermail/package-announce/2016-March/178358.html

http://lists.fedoraproject.org/pipermail/package-announce/2016-March/178817.html

http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00001.html

http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00002.html

http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00003.html

http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00004.html

http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00005.html

http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00006.html

http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00007.html

http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00009.html

http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00010.html

http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00012.html

http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00025.html

http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00038.html

http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00015.html

http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00017.html

http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00018.html

http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00029.html

http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00030.html

http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00036.html

http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00055.html

http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00019.html

http://marc.info/?l=bugtraq&m=145889460330120&w=2

http://openssl.org/news/secadv/20160301.txt

http://rhn.redhat.com/errata/RHSA-2016-2957.html

http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20160302-openssl

http://www.debian.org/security/2016/dsa-3500

http://www.oracle.com/technetwork/security-advisory/cpuapr2016v3-2985753.html

http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html

http://www.oracle.com/technetwork/topics/security/linuxbulletinjan2016-2867209.html

http://www.securitytracker.com/id/1035133

http://www.ubuntu.com/usn/USN-2914-1

https://cert-portal.siemens.com/productcert/pdf/ssa-412672.pdf

https://git.openssl.org/?p=openssl.git%3Ba=commit%3Bh=708dc2f1291e104fe4eef810bb8ffc1fae5b19c1

https://h20566.www2.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbhf03741en_us

https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05052990

https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05376917

https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05390722

https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA40168

https://security.FreeBSD.org/advisories/FreeBSD-SA-16:12.openssl.asc

https://security.gentoo.org/glsa/201603-15

https://www.openssl.org/news/secadv/20160301.txt

Common Vulnerability Scoring System

Attack Vector

Network

Adjacent

Local

Physical

Privileges Required

None

Low

High

User Interaction

None

Required

Scope

Unchanged

Changed

Confidentiality

None

Low

High

Integrity

None

Low

High

Availability

None

Low

High