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CVE-2018-0737

Published: 16 April 2018

The OpenSSL RSA Key generation algorithm has been shown to be vulnerable to a cache timing side channel attack. An attacker with sufficient access to mount cache timing attacks during the RSA key generation process could recover the private key. Fixed in OpenSSL 1.1.0i-dev (Affected 1.1.0-1.1.0h). Fixed in OpenSSL 1.0.2p-dev (Affected 1.0.2b-1.0.2o).

Notes

AuthorNote
mdeslaur
USN-3628-1 was releases with a possible incomplete fix. Next USN
should add the three first commits listed below

Priority

Low

Cvss 3 Severity Score

5.9

Score breakdown

Status

Package Release Status
openssl
Launchpad, Ubuntu, Debian
artful
Released (1.0.2g-1ubuntu13.6)
bionic
Released (1.1.0g-2ubuntu4.1)
cosmic
Released (1.1.0g-2ubuntu5)
disco
Released (1.1.0g-2ubuntu5)
trusty
Released (1.0.1f-1ubuntu2.26)
upstream Needs triage

xenial
Released (1.0.2g-1ubuntu4.13)
Patches:
upstream: https://git.openssl.org/gitweb/?p=openssl.git;a=commit;h=0b199a883e9170cdfe8e61c150bbaf8d8951f3e7 (1.0.2)
upstream: https://git.openssl.org/gitweb/?p=openssl.git;a=commit;h=64eb614ccc7ccf30cc412b736f509f1d82bbf897 (1.0.2)
upstream: https://git.openssl.org/gitweb/?p=openssl.git;a=commit;h=0d6710289307d277ebc3354105c965b6e8ba8eb0 (1.0.2)
upstream: https://git.openssl.org/gitweb/?p=openssl.git;a=commit;h=349a41da1ad88ad87825414752a8ff5fdd6a6c3f (1.0.2)
upstream: https://git.openssl.org/gitweb/?p=openssl.git;a=commit;h=6939eab03a6e23d2bd2c3f5e34fe1d48e542e787 (trunk)
upstream: https://git.openssl.org/gitweb/?p=openssl.git;a=commit;h=9db724cfede4ba7a3668bff533973ee70145ec07 (1.1)
upstream: https://git.openssl.org/gitweb/?p=openssl.git;a=commit;h=011f82e66f4bf131c733fd41a8390039859aafb2 (1.1)
upstream: https://git.openssl.org/gitweb/?p=openssl.git;a=commit;h=7150a4720af7913cae16f2e4eaf768b578c0b298 (1.1)
upstream: https://git.openssl.org/gitweb/?p=openssl.git;a=commit;h=6939eab03a6e23d2bd2c3f5e34fe1d48e542e787 (1.1)
openssl098
Launchpad, Ubuntu, Debian
artful Does not exist

bionic Does not exist

cosmic Does not exist

disco Does not exist

trusty Does not exist
(trusty was needs-triage)
upstream Needs triage

xenial Does not exist

openssl1.0
Launchpad, Ubuntu, Debian
artful Does not exist

bionic
Released (1.0.2n-1ubuntu5.1)
cosmic
Released (1.0.2n-1ubuntu6)
disco Does not exist

trusty Does not exist

upstream Needs triage

xenial Does not exist

Severity score breakdown

Parameter Value
Base score 5.9
Attack vector Network
Attack complexity High
Privileges required None
User interaction None
Scope Unchanged
Confidentiality High
Integrity impact None
Availability impact None
Vector CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N