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Debian 8 Jessie: DLA-1840-1 Critical: golang-go.crypto Salsa20 Flaw

A flaw was found in the amd64 implementation of salsa20. 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. . Package : golang-go.crypto Version : 0.0~hg190-1+deb8u1 CVE ID : CVE-2019-11840 A flaw was found in the amd64 implementation of salsa20. 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. For Debian 8 "Jessie", this problem has been fixed in version 0.0~hg190-1+deb8u1. obfs4proxy has been rebuilt as version 0.0.3-2+deb8u1. We recommend that you upgrade your golang-golang-x-crypto-dev and obfs4proxy packages, and rebuild any software using golang-golang-x-crypto-dev. Further information about Debian LTS security advisories, how to apply these updates to your system and frequently asked questions can be found at: https://wiki.debian.org/LTS . Revise golang-go.crypto on Debian LTS to address keystream vulnerability impacting amd64 version. Essential security patch required.. Debian LTS, golang-go.crypto, keystream flaw, security update, salsa20 implementation. . Severity: Critical. LinuxSecurity.com Team

Jun 30, 2019 •Critical Debian LTS