ASA-202107-3 log generated external raw

Arch Linux Security Advisory ASA-202107-3 ========================================= Severity: Critical Date : 2021-07-01 CVE-ID : CVE-2021-34824 Package : istio Type : information disclosure Remote : Yes Link : https://security.archlinux.org/AVG-2113 Summary ======= The package istio before version 1.10.2-1 is vulnerable to information disclosure. Resolution ========== Upgrade to 1.10.2-1. # pacman -Syu "istio>=1.10.2-1" The problem has been fixed upstream in version 1.10.2. Workaround ========== This vulnerability can be mitigated by disabling Istiod caching. Caching is disabled by setting an Istiod environment variable PILOT_ENABLE_XDS_CACHE=false. System and Istiod performance may be impacted as this disables XDS caching. Description =========== Istio before version 1.10.2 contains a remotely exploitable vulnerability where credentials specified in the Gateway and DestinationRule credentialName field can be accessed from different namespaces. The Istio Gateway and DestinationRule can load private keys and certificates from Kubernetes secrets via the credentialName configuration. For Istio 1.8 and above, the secrets are conveyed from Istiod to gateways or workloads via the XDS API. In the above approach, a gateway or workload deployment should only be able to access credentials (TLS certificates and private keys) stored in the Kubernetes secrets within its namespace. However, a bug in Istiod permits an authorized client the ability to access and retrieve any TLS certificate and private key cached in Istiod. Impact ====== An authorized client could retrieve any TLS certificate and private key cached in Istiod outside of its own namespace. References ========== https://istio.io/latest/news/security/istio-security-2021-007/ https://github.com/istio/istio/commit/10674c9a86ece93dcd40efd8e4b9147bc8604460 https://github.com/istio/istio/commit/f58f789f8e0d1580d00b68b76b1132163939b9ef https://security.archlinux.org/CVE-2021-34824