Bug 1668972 (CVE-2019-6486)

Summary: CVE-2019-6486 golang: crypto/elliptic implementations of P-521 and P-384 elliptic curves allow for denial of service
Product: [Other] Security Response Reporter: Sam Fowler <sfowler>
Component: vulnerabilityAssignee: Red Hat Product Security <security-response-team>
Status: CLOSED ERRATA QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedCC: ahardin, bleanhar, bmontgom, ccoleman, dedgar, deparker, eparis, jburrell, jgoulding, jjoyce, jokerman, jschluet, lhh, lpeer, mburns, mchappel, mmccomas, nstielau, sclewis, sfowler, sisharma, slinaber, sponnaga, tbielawa
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard:
Fixed In Version: golang 1.10.8, golang 1.11.5 Doc Type: If docs needed, set a value
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2021-10-27 03:23:33 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: 1668973, 1668974, 1668975, 1668987, 1668988, 1670990, 1670991, 1670992, 1671277, 1671279, 1826587    
Bug Blocks: 1668976    

Description Sam Fowler 2019-01-24 03:29:01 UTC 
Go before versions 1.10.8 and 1.11.5 has a vulnerability in the crypto/elliptic implementations of the P-521 and P-384 elliptic curves. A remote attacker can exploit this by crafting inputs that consume excessive amounts of CPU. These inputs might be delivered via TLS handshakes, X.509 certificates, JWT tokens, ECDH shares or ECDSA signatures. In some cases, if an ECDH private key is reused more than once, the attack can also lead to key recovery.


External Reference:

https://groups.google.com/forum/m/#!topic/golang-announce/mVeX35iXuSw


Upstream Issue:

https://golang.org/issue/29903


Upstream Patch:

https://github.com/golang/go/commit/42b42f71
Comment 1 Sam Fowler 2019-01-24 03:29:38 UTC 
Created golang tracking bugs for this issue:

Affects: epel-all [bug 1668975]
Affects: fedora-all [bug 1668973]


Created golang:1.10/golang tracking bugs for this issue:

Affects: fedora-all [bug 1668974]
Comment 3 Hardik Vyas 2019-01-30 13:20:18 UTC 
This issue affects the versions of golang as shipped with Red Hat Ceph Storage 2, 3 and Red Hat Gluster Storage 3 as it includes the vulnerable code.
Comment 9 Tomas Hoger 2019-01-31 09:54:27 UTC 
Created golang:1.10/golang tracking bugs for this issue:

Affects: fedora-all [bug 1671279]
Comment 12 Doran Moppert 2020-04-22 03:34:50 UTC 
Created golang:1.10/golang tracking bugs for this issue:

Affects: fedora-all [bug 1826587]