Bug 1668972 (CVE-2019-6486) - CVE-2019-6486 golang: crypto/elliptic implementations of P-521 and P-384 elliptic curves allow for denial of service
Summary: CVE-2019-6486 golang: crypto/elliptic implementations of P-521 and P-384 elli...
Keywords:
Status: CLOSED ERRATA
Alias: CVE-2019-6486
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 1668973 1668974 1668975 1668987 1668988 1670990 1670991 1670992 1671277 1671279 1826587
Blocks: 1668976
TreeView+ depends on / blocked
 
Reported: 2019-01-24 03:29 UTC by Sam Fowler
Modified: 2021-10-27 03:23 UTC (History)
24 users (show)

Fixed In Version: golang 1.10.8, golang 1.11.5
Clone Of:
Environment:
Last Closed: 2021-10-27 03:23:33 UTC
Embargoed:

Attachments (Terms of Use)

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]
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