CVE-2019-11840 – golang.org/x/crypto

Package

Manager: go
Name: golang.org/x/crypto
Vulnerable Version: >=0 <0.0.0-20190320223903-b7391e95e576

Severity

Level: Medium

CVSS v3.1: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

CVSS v4.0: CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N

EPSS: 0.02757 pctl0.85462

Details

golang.org/x/crypto/salsa20/salsa uses insufficiently random values 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. ### Specific Go Packages Affected golang.org/x/crypto/salsa20/salsa

Metadata

Created: 2022-05-24T16:45:25Z
Modified: 2023-09-29T15:47:38Z
Source: https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2022/05/GHSA-r5c5-pr8j-pfp7/GHSA-r5c5-pr8j-pfp7.json
CWE IDs: ["CWE-330"]
Alternative ID: GHSA-r5c5-pr8j-pfp7
Finding: F034
Auto approve: 1