jdk8u
grype
jdk8u | grype | |
---|---|---|
6 | 56 | |
201 | 7,649 | |
1.0% | 1.9% | |
8.5 | 9.5 | |
17 days ago | 7 days ago | |
Java | Go | |
GNU General Public License v3.0 only | Apache License 2.0 |
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
jdk8u
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Seeing through hardware counters: a journey to threefold performance increase
Would an atomic mutable subclass cache (not sure what it's used for, downcasting?) be unnecessary in a language built around static rather than dynamic dispatch by default, like C/C++/Rust and perhaps Go? Or would it still speed up dynamically dispatched code, but is less practical or worthwhile so it isn't used in practice? (Though Rust's Arc also suffers from atomic contention similar to this blog post, when used across dozens of threads: https://pkolaczk.github.io/server-slower-than-a-laptop/)
Also it's somewhat ironic that the JVM source code (https://github.com/openjdk/jdk8u/blob/jdk8u352-b07/hotspot/s...) says "This code is rarely used, so simplicity is a virtue here" at the site of a bottleneck.
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Minecraft 1.8.9 Consistently Crashes after 5 Mins
Use the latest JDK (Developer's Kit) or JRE (Runtime Environment) for Java 8, compiled and distributed by AdoptOpenJDK from the official Read-Only source.
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How are LTS updates made?
The majority of the work on 8u, 11u, 17u releases happens in OpenJDK upstream, in so called JDK Updates Projects, by engineers from the interested JDK vendors. You can get a peek who does this kind of work from the repository histories, for example the most recent 11.0.13 is done by engineers from Red Hat (including yours truly), SAP, Azul, Microsoft, BellSoft, Tencent, Amazon, Alibaba, IBM, ARM, Google.
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Log4Shell Log4j vulnerability (CVE-2021-44228) – cheat-sheet reference guide
> whatever it returned would just get inserted as a string into the log output, no big deal.
Once you can inject anything that gets resolved, you have an information disclosure vulnerability unrelated to the RCE.
If I can just DNS resolve any ${env} variable from the JVM, a lot of systems are compromised by just exposing the env or system variables configured for runtime.
Just getting your $AWS_ACCESS_KEY_ID and $AWS_SECRET_ACCESS_KEY env vars can compromise your bucket (sure, that is a really unsafe setup now, but it was almost the standard a few years ago over configuring it explicitly).
So a logging system which will merely resolve a hostname derived from a variable was bad enough to compromise many systems.
The serialization loophole was fixed in a jdk8 update.
https://github.com/openjdk/jdk8u/commit/006e84fc77a582552e71...
But even with that in place, the information disclosure of java System or env properties is bad enough to break actual systems in prod.
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Log4j RCE Found
> Turns out, by including "." in some part of the URL to this remote class, Log4j lets off its guard & simply looks up to that server and dynamically loads the class file.
No it doesn't. That was disabled by default in 2009, and was disabled by default in every release of Java 8 or later: https://github.com/openjdk/jdk8u/commit/006e84fc77a582552e71...
Unless i am mistaken, i don't believe the attack as described by LunaSec actually works against a default-configured JVM released any time in the last decade.
grype
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Introduction to the Kubernetes ecosystem
Trivy Operator : A simple and comprehensive vulnerability scanner for containers and other artifacts. It detects vulnerabilities of OS packages (Alpine, Debian, CentOS, etc.) and application dependencies (pip, npm, yarn, composer, etc.) (Alternatives : Grype, Snyk, Clair, Anchore, Twistlock)
- Suas imagens de container não estão seguras!
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I looked through attacks in my access logs. Here's what I found
Besides pointing pentester tools like metasploit at yourself, there are some nice scanners out there.
https://github.com/quay/clair
https://github.com/anchore/grype/
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Distroless images using melange and apko
Using Grype:
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Scanning and remediating vulnerabilities with Grype
In the lab to follow, we'll see how vulnerability scanning can be conveniently achieved with Grype and how various systematic techniques can be applied to start securing our microservices at the container image level.
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Understanding Container Security
Scanning your container images for vulnerabilities is a good approach. But this scanning is not one time job, it should be done regularly (weekly, monthly, etc.) You need to follow vulnerability reports and fix all of the vulnerabilities as soon as possible. I recommend some open-source tools that could be useful: Trivy, Docker-Bench, Grype.
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An Overview of Kubernetes Security Projects at KubeCon Europe 2023
Grype is another popular open source tool from Anchore. Working with SBOM files, Grype scans container images and filesystems for vulnerabilities. Grype supports different output formats for vulnerabilities and custom templates for output.
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Best vulnerability scanner for DevOps
Grype (https://github.com/anchore/grype)
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Security docker app
Grype will allow you to scan a container to see if you have any vulnerable packages.
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Open source container scanning tool to find vulnerabilities and suggest best practice improvements?
https://github.com/anchore/grype 5.6k stars, updated 3 days ago
What are some alternatives?
jdk8u_jdk
trivy - Find vulnerabilities, misconfigurations, secrets, SBOM in containers, Kubernetes, code repositories, clouds and more
apache-log4j-poc - Apache Log4j 远程代码执行
anchore-engine - A service that analyzes docker images and scans for vulnerabilities
syft - CLI tool and library for generating a Software Bill of Materials from container images and filesystems
clair - Vulnerability Static Analysis for Containers
openjdk8-upstream-binaries - Archived release scripts/releases of OpenJDK 8u project builds. Superseded by Eclipse Temurin releases.
lunasec - LunaSec - Dependency Security Scanner that automatically notifies you about vulnerabilities like Log4Shell or node-ipc in your Pull Requests and Builds. Protect yourself in 30 seconds with the LunaTrace GitHub App: https://github.com/marketplace/lunatrace-by-lunasec/
opencve - CVE Alerting Platform
marshalsec
falco - Cloud Native Runtime Security