Bug 1644356 (CVE-2018-0735)

Summary:	CVE-2018-0735 openssl: timing side channel attack in the ECDSA signature generation
Product:	[Other] Security Response	Reporter:	Laura Pardo <lpardo>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED ERRATA	QA Contact:
Severity:	low	Docs Contact:
Priority:	low
Version:	unspecified	CC:	abhgupta, ahardin, bkundal, bleanhar, bmaxwell, ccoleman, cdewolf, chazlett, csutherl, darran.lofthouse, dbaker, dedgar, dimitris, dosoudil, eparis, erik-fedora, fgavrilo, gzaronik, jawilson, jclere, jgoulding, jokerman, jondruse, jorton, ktietz, lersek, lgao, marcandre.lureau, mbabacek, mchappel, mturk, myarboro, pgier, ppalaga, pslavice, rh-spice-bugs, rjones, rnetuka, rstancel, rsvoboda, slawomir, sthangav, tmraz, trankin, twalsh, vtunka, weli
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	openssl 1.1.0j, openssl 1.1.1a	Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2019-11-06 00:51:21 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:	1644357, 1644358, 1648185, 1648767
Bug Blocks:	1644372

Description Laura Pardo 2018-10-30 15:46:18 UTC

A flaw was found in OpenSSL versions from 1.1.0 through 1.1.0i inclusive and version 1.1.1. The OpenSSL ECDSA signature algorithm has been shown to be vulnerable to a timing side channel attack. An attacker could use variations in the signing algorithm to recover the private key.


References:
https://www.openssl.org/news/secadv/20181029.txt

Upstream Patch:
https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=56fb454d281a023b3f950d969693553d3f3ceea1 
https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=b1d6d55ece1c26fa2829e2b819b038d7b6d692b4

Comment 1 Laura Pardo 2018-10-30 15:46:46 UTC

Created openssl tracking bugs for this issue:

Affects: fedora-all [bug 1644357]

Comment 6 errata-xmlrpc 2019-11-05 22:05:47 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2019:3700 https://access.redhat.com/errata/RHSA-2019:3700

Comment 7 Product Security DevOps Team 2019-11-06 00:51:21 UTC

This bug is now closed. Further updates for individual products will be reflected on the CVE page(s):

https://access.redhat.com/security/cve/cve-2018-0735