VYPR
Medium severity5.9NVD Advisory· Published May 9, 2019· Updated May 18, 2026

CVE-2019-11840

CVE-2019-11840

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.

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Affected packages

Versions sourced from the GitHub Security Advisory.

PackageAffected versionsPatched versions
golang.org/x/cryptoGo
< 0.0.0-20190320223903-b7391e95e5760.0.0-20190320223903-b7391e95e576

Affected products

13

Patches

Vulnerability mechanics

References

17

News mentions

0

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