Raccoon attack

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Summary

CVECVE-2020-1968
StatePUBLISHED
Assigneropenssl
Source PriorityCVE Program / NVD first with legacy fallback
Published2020-09-09 14:15:12 UTC
Updated2026-04-16 15:16:41 UTC
DescriptionThe Raccoon attack exploits a flaw in the TLS specification which can lead to an attacker being able to compute the pre-master secret in connections which have used a Diffie-Hellman (DH) based ciphersuite. In such a case this would result in the attacker being able to eavesdrop on all encrypted communications sent over that TLS connection. The attack can only be exploited if an implementation re-uses a DH secret across multiple TLS connections. Note that this issue only impacts DH ciphersuites and not ECDH ciphersuites. This issue affects OpenSSL 1.0.2 which is out of support and no longer receiving public updates. OpenSSL 1.1.1 is not vulnerable to this issue. Fixed in OpenSSL 1.0.2w (Affected 1.0.2-1.0.2v).

Risk And Classification

Primary CVSS: v3.1 3.7 LOW from [email protected]

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N

Problem Types: CWE-203 | Protocol flaw | CWE-203 CWE-203 Observable Discrepancy

VersionSourceTypeScoreSeverityVector
3.1[email protected]Primary3.7LOWCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
3.1ADPDECLARED3.7LOWCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
3.1134c704f-9b21-4f2e-91b3-4a467353bcc0Secondary3.7LOWCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
2.0[email protected]Primary4.3AV:N/AC:M/Au:N/C:P/I:N/A:N

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
None
Availability
None

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N

CVSS v2.0 Breakdown

Access Vector
Network
Access Complexity
Medium
Authentication
None
Confidentiality
Partial
Integrity
None
Availability
None

AV:N/AC:M/Au:N/C:P/I:N/A:N

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Canonical Ubuntu Linux 16.04 All All All
Operating System Canonical Ubuntu Linux 18.04 All All All
Operating System Debian Debian Linux 9.0 All All All
Hardware Fujitsu M10-1 - All All All
Operating System Fujitsu M10-1 Firmware All All All All
Hardware Fujitsu M10-4 - All All All
Hardware Fujitsu M10-4s - All All All
Operating System Fujitsu M10-4s Firmware All All All All
Operating System Fujitsu M10-4 Firmware All All All All
Hardware Fujitsu M12-1 - All All All
Operating System Fujitsu M12-1 Firmware All All All All
Hardware Fujitsu M12-2 - All All All
Hardware Fujitsu M12-2s - All All All
Operating System Fujitsu M12-2s Firmware All All All All
Operating System Fujitsu M12-2 Firmware All All All All
Application Openssl Openssl All All All All
Hardware Oracle Ethernet Switch Es2-64 - All All All
Operating System Oracle Ethernet Switch Es2-64 Firmware 2.0.0.14 All All All
Hardware Oracle Ethernet Switch Es2-72 - All All All
Operating System Oracle Ethernet Switch Es2-72 Firmware 2.0.0.14 All All All
Application Oracle Jd Edwards World Security a9.4 All All All
Application Oracle Peoplesoft Enterprise Peopletools 8.56 All All All
Application Oracle Peoplesoft Enterprise Peopletools 8.57 All All All
Application Oracle Peoplesoft Enterprise Peopletools 8.58 All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA OpenSSL OpenSSL affected Fixed in OpenSSL 1.0.2w (Affected 1.0.2-1.0.2v) Not specified

References

ReferenceSourceLinkTags
Oracle Critical Patch Update Advisory - April 2022 af854a3a-2127-422b-91ae-364da2661108 www.oracle.com Patch, Third Party Advisory
Oracle Critical Patch Update Advisory - October 2021 af854a3a-2127-422b-91ae-364da2661108 www.oracle.com Patch, Third Party Advisory
[SECURITY] [DLA 2378-1] openssl1.0 security update af854a3a-2127-422b-91ae-364da2661108 lists.debian.org Mailing List, Third Party Advisory
USN-4504-1: OpenSSL vulnerabilities | Ubuntu security notices | Ubuntu af854a3a-2127-422b-91ae-364da2661108 usn.ubuntu.com Third Party Advisory
Oracle Critical Patch Update Advisory - July 2021 af854a3a-2127-422b-91ae-364da2661108 www.oracle.com Patch, Third Party Advisory
Oracle Critical Patch Update Advisory - January 2021 af854a3a-2127-422b-91ae-364da2661108 www.oracle.com Third Party Advisory
OpenSSL: Multiple Vulnerabilities (GLSA 202210-02) — Gentoo security af854a3a-2127-422b-91ae-364da2661108 security.gentoo.org Third Party Advisory
Oracle Critical Patch Update Advisory - April 2021 af854a3a-2127-422b-91ae-364da2661108 www.oracle.com Patch, Third Party Advisory
CVE-2020-1968 OpenSSL Vulnerability in NetApp Products | NetApp Product Security af854a3a-2127-422b-91ae-364da2661108 security.netapp.com Third Party Advisory
www.openssl.org/news/secadv/20200909.txt af854a3a-2127-422b-91ae-364da2661108 www.openssl.org Vendor Advisory
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: Robert Merget, Marcus Brinkmann, Nimrod Aviram, and Juraj Somorovsky (en)

Legacy QID Mappings

  • 330079 IBM AIX Multiple Vulnerabilities in Openssl (openssl_advisory32)
  • 374875 Oracle PeopleSoft Enterprise PeopleTools Multiple vulnerabilitites (CPUJAN2021)
  • 591018 Hitachi Energy RTU500 series Multiple Vulnerabilities (ICSA-21-336-08)
  • 710638 Gentoo Linux Open Secure Sockets Layer (OpenSSL) Multiple Vulnerabilities (GLSA 202210-02)
  • 730319 Palo Alto Networks (PAN-OS) Impact of the Raccoon Attack Vulnerability (PAN-154936)
  • 91781 IBM Integration Bus and IBM App Connect Enterprise Open Secure Sockets Layer (OpenSSL) Multiple Vulnerabilities (6444817,6444819)
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