CVE-2019-11840 Detail

Current Description

An issue was discovered in supplementary Go cryptography libraries, aka golang-googlecode-go-crypto, before 2019-03-20. A flaw was found in the amd64 implementation of golang.org/x/crypto/salsa20 and golang.org/x/crypto/salsa20/salsa. If more than 256 GiB of keystream is generated, or if the counter otherwise grows greater than 32 bits, the amd64 implementation will first generate incorrect output, and then cycle back to previously generated keystream. Repeated keystream bytes can lead to loss of confidentiality in encryption applications, or to predictability in CSPRNG applications.


View Analysis Description

Severity



CVSS 3.x Severity and Metrics:

NIST CVSS score
NIST: NVD
Base Score:  5.9 MEDIUM
Vector:  CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N


NVD Analysts use publicly available information to associate vector strings and CVSS scores. We also display any CVSS information provided within the CVE List from the CNA.

Note: NVD Analysts have published a CVSS score for this CVE based on publicly available information at the time of analysis. The CNA has not provided a score within the CVE List.

References to Advisories, Solutions, and Tools

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Hyperlink Resource
https://bugzilla.redhat.com/show_bug.cgi?id=1691529 Issue Tracking  Vendor Advisory 
https://github.com/golang/go/issues/30965 Third Party Advisory 
https://go.googlesource.com/crypto/+/b7391e95e576cacdcdd422573063bc057239113d Mailing List  Patch  Third Party Advisory 
https://groups.google.com/forum/#!msg/golang-announce/tjyNcJxb2vQ/n0NRBziSCAAJ Mailing List  Third Party Advisory 
https://lists.debian.org/debian-lts-announce/2019/06/msg00029.html

Weakness Enumeration

CWE-ID CWE Name Source
CWE-330 Use of Insufficiently Random Values cwe source acceptance level NIST  

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Change History

2 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2019-11840
NVD Published Date:
05/09/2019
NVD Last Modified:
06/30/2019
Source:
MITRE