Description
An issue was discovered in the supplementary Go cryptography library, golang.org/x/crypto, before v0.0.0-20190320223903-b7391e95e576. A flaw was found in the amd64 implementation of the golang.org/x/crypto/salsa20 and golang.org/x/crypto/salsa20/salsa packages. 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.
Published: 2019-05-09
Score: 5.9 Medium
EPSS: 2.7% Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

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Tracking

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Advisories
Source ID Title
Debian DLA Debian DLA DLA-1840-1 golang-go.crypto security update
Debian DLA Debian DLA DLA-2402-1 golang-go.crypto security update
Debian DLA Debian DLA DLA-2442-1 obfs4proxy security update
Debian DLA Debian DLA DLA-2454-1 rclone security update
Debian DLA Debian DLA DLA-2527-1 snapd security update
Debian DLA Debian DLA DLA-3455-1 golang-go.crypto security update
EUVD EUVD EUVD-2022-5096 An issue was discovered in the supplementary Go cryptography library, golang.org/x/crypto, before v0.0.0-20190320223903-b7391e95e576. A flaw was found in the amd64 implementation of the golang.org/x/crypto/salsa20 and golang.org/x/crypto/salsa20/salsa packages. 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.
Github GHSA Github GHSA GHSA-r5c5-pr8j-pfp7 golang.org/x/crypto/salsa20/salsa uses insufficiently random values
History

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Debian Debian Linux
Golang Crypto
Redhat Openshift
cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2024-08-04T23:03:32.886Z

Reserved: 2019-05-09T00:00:00.000Z

Link: CVE-2019-11840

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2019-05-09T16:29:00.607

Modified: 2024-11-21T04:21:52.383

Link: CVE-2019-11840

cve-icon Redhat

Severity : Moderate

Publid Date: 2019-03-20T00:00:00Z

Links: CVE-2019-11840 - Bugzilla

cve-icon OpenCVE Enrichment

No data.

Weaknesses