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CVE-2020-1968

Raccoon attack

LOW
3.7
CVSS Score
Published: September 9, 2020 at 01:50 PM UTC
Updated: June 17, 2026 at 03:02 AM UTC
25 products affected across 5 vendorsDebian LinuxUbuntu LinuxPeopleSoft Enterprise PeopleTools

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Severity
LOW3.7
Exploit prediction
EPSS 5%
SSVC
No known exploit

Description

The 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).

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Ubuntu Linux· Canonicalrubygems
95%
16.0418.04
Debian Linux· Debiandrupal
95%
9.0
M10-1 Firmware· Fujitsu
95%
v < xcp2400v < xcp3100
Affected range stops below xcp2400, so it looks safe — our inference, not a vendor statement
Affected range stops below xcp3100, so it looks safe — our inference, not a vendor statement
fujitsu-m10-1 (same device)
M10-4 Firmware· Fujitsu
95%
v < xcp2400v < xcp3100
Affected range stops below xcp2400, so it looks safe — our inference, not a vendor statement
Affected range stops below xcp3100, so it looks safe — our inference, not a vendor statement
fujitsu-m10-4 (same device)
M10-4s Firmware· Fujitsu
95%
v < xcp2400v < xcp3100
Affected range stops below xcp2400, so it looks safe — our inference, not a vendor statement
Affected range stops below xcp3100, so it looks safe — our inference, not a vendor statement
fujitsu-m10-4s (same device)
M12-1 Firmware· Fujitsu
95%
v < xcp2400v < xcp3100
Affected range stops below xcp2400, so it looks safe — our inference, not a vendor statement
Affected range stops below xcp3100, so it looks safe — our inference, not a vendor statement
fujitsu-m12-1 (same device)
M12-2 Firmware· Fujitsu
95%
v < xcp2400v < xcp3100
Affected range stops below xcp2400, so it looks safe — our inference, not a vendor statement
Affected range stops below xcp3100, so it looks safe — our inference, not a vendor statement
fujitsu-m12-2 (same device)
M12-2s Firmware· Fujitsu
95%
v < xcp2400v < xcp3100
Affected range stops below xcp2400, so it looks safe — our inference, not a vendor statement
Affected range stops below xcp3100, so it looks safe — our inference, not a vendor statement
fujitsu-m12-2s (same device)
OpenSSL· OpenSSL
95%
1.0.2 ≤ v ≤ 1.0.2v
Vendor states this is fixed in 1.0.2w (unaffected)
Ethernet Switch Es1-24 Firmware· Oracle
95%
1.3.1
oracle-ethernet-switch-es1-24 (same device)

References (10)

Mailing ListThird Party Advisory
Source: [email protected]
https://lists.debian.org/debian-lts-announce/2020/09/msg00016.html
Vendor AdvisoryThird Party Advisory
Source: [email protected]
https://security.gentoo.org/glsa/202210-02
Third Party Advisory
Source: [email protected]
https://security.netapp.com/advisory/ntap-20200911-0004/
Vendor AdvisoryThird Party Advisory
Source: [email protected]
https://usn.ubuntu.com/4504-1/
Vendor Advisory
Source: [email protected]
https://www.openssl.org/news/secadv/20200909.txt
x_refsource_MISCPatchThird Party Advisory
Source: [email protected]
https://www.oracle.com//security-alerts/cpujul2021.html
x_refsource_MISCPatchThird Party Advisory
Source: [email protected]
https://www.oracle.com/security-alerts/cpuApr2021.html
x_refsource_MISCPatchThird Party Advisory
Source: [email protected]
https://www.oracle.com/security-alerts/cpuapr2022.html

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

3.7LOWCISA-ADP
Attack Vector
NETWORK
Complexity
HIGH
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
LOW
Integrity
NONE
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-203

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