Detections
Analytics
CVE-2019-11840
medium
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.
References
https://pkg.go.dev/vuln/GO-2022-0209
https://lists.debian.org/debian-lts-announce/2023/06/msg00017.html
https://lists.debian.org/debian-lts-announce/2021/01/msg00015.html
https://lists.debian.org/debian-lts-announce/2020/11/msg00030.html
https://lists.debian.org/debian-lts-announce/2020/11/msg00016.html
https://lists.debian.org/debian-lts-announce/2020/10/msg00014.html
https://lists.debian.org/debian-lts-announce/2019/06/msg00029.html
https://groups.google.com/forum/#%21msg/golang-announce/tjyNcJxb2vQ/n0NRBziSCAAJ
https://go.googlesource.com/crypto/+/b7391e95e576cacdcdd422573063bc057239113d