CVE-2020-1968
Published: 9 September 2020
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).
Priority
Status
| Package | Release | Status |
|---|---|---|
|
openssl Launchpad, Ubuntu, Debian |
impish |
Not vulnerable
(1.1.1f-1ubuntu3)
|
| kinetic |
Not vulnerable
(1.1.1f-1ubuntu3)
|
|
| lunar |
Not vulnerable
(1.1.1f-1ubuntu3)
|
|
| bionic |
Not vulnerable
(1.1.1-1ubuntu2.1~18.04.6)
|
|
| focal |
Not vulnerable
(1.1.1f-1ubuntu2)
|
|
| groovy |
Not vulnerable
(1.1.1f-1ubuntu3)
|
|
| hirsute |
Not vulnerable
(1.1.1f-1ubuntu3)
|
|
| jammy |
Not vulnerable
(1.1.1f-1ubuntu3)
|
|
| trusty |
Needed
|
|
| upstream |
Needs triage
|
|
| xenial |
Released
(1.0.2g-1ubuntu4.17)
|
|
|
openssl1.0 Launchpad, Ubuntu, Debian |
impish |
Does not exist
|
| kinetic |
Does not exist
|
|
| lunar |
Does not exist
|
|
| bionic |
Released
(1.0.2n-1ubuntu5.4)
|
|
| focal |
Does not exist
|
|
| groovy |
Does not exist
|
|
| hirsute |
Does not exist
|
|
| jammy |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Needs triage
|
|
| xenial |
Does not exist
|
|
|
nodejs Launchpad, Ubuntu, Debian |
impish |
Not vulnerable
(uses system openssl1.1)
|
| bionic |
Not vulnerable
(uses system openssl1.0)
|
|
| kinetic |
Not vulnerable
(uses system openssl1.1)
|
|
| lunar |
Not vulnerable
(uses system openssl1.1)
|
|
| focal |
Not vulnerable
(uses system openssl1.1)
|
|
| groovy |
Not vulnerable
(uses system openssl1.1)
|
|
| hirsute |
Not vulnerable
(uses system openssl1.1)
|
|
| jammy |
Not vulnerable
(uses openssl 1.1)
|
|
| trusty |
Not vulnerable
(uses system openssl)
|
|
| upstream |
Needs triage
|
|
| xenial |
Not vulnerable
(uses system openssl)
|
|
|
edk2 Launchpad, Ubuntu, Debian |
impish |
Not vulnerable
(uses openssl 1.1.1)
|
| upstream |
Needs triage
|
|
| trusty |
Does not exist
|
|
| bionic |
Not vulnerable
(uses openssl 1.1.0)
|
|
| focal |
Not vulnerable
(uses openssl 1.1.1)
|
|
| groovy |
Not vulnerable
(uses openssl 1.1.1)
|
|
| kinetic |
Not vulnerable
(uses openssl 1.1.1)
|
|
| lunar |
Not vulnerable
(uses openssl 1.1.1)
|
|
| hirsute |
Not vulnerable
(uses openssl 1.1.1)
|
|
| jammy |
Not vulnerable
(uses openssl 1.1.1)
|
|
| xenial |
Needed
|
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 3.7 |
| Attack vector | Network |
| Attack complexity | High |
| Privileges required | None |
| User interaction | None |
| Scope | Unchanged |
| Confidentiality | Low |
| Integrity impact | None |
| Availability impact | None |
| Vector | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N |