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Add a paragraph about CVEs

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Anton Sankov 2022-12-22 20:21:51 +02:00
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# Container Image Scanning
A container image consists of an image manifest, a filesystem and an image configuration. (1)
A container image consists of an image manifest, a filesystem and an image configuration. [1](https://opencontainers.org/about/overview/)
For example, the filesystem of a container image for a Java application will have a Linux filesystem, the JVM, and the JAR/WAR file that represents our application.
@ -257,15 +257,23 @@ If an image scanner tells you that you have 0 vulnerabilities in your image, tha
Also, mitigating vulnerabilities can be as simple as bumping a version of a dependency (or downgrading one), but sometimes it can be more tricky because that version bump might require a change in your code.
## CVEs
In the vulnerability table provided by our scanner we see something that starts with `CVE-`:
```text
bash 4.4.18-2ubuntu1.2 deb CVE-2022-3715 Medium
```
[**CVE**](https://cve.mitre.org/) stands for **C**ommon **V**ulnerability and **E**xposures.
It is a system that allows us to track vulnerabilities and be able to easily search for them.
Each time a new vulnerability is found, it is assigned a CVE by the [CNA](https://www.cve.org/ProgramOrganization/CNAs) (CVE Numbering Authority) and associated with all components that contain that vulnerability.
Once this is done, this information is propagated to the vulnerabilities databases and can be leveraged by image scanners to warn about CVEs/vulnerabilities that are present in our container.
## Summary
Now we know why image scanning is important and how it can help us be more secure.
In [Day 15](day15.md) we are going to dive deeper into the way the image scanners work under the hood, looking into things like SBOMs and vulnerability databases.
## Resources
[1](https://opencontainers.org/about/overview/)
TODO: more
## DAST
## Fuzzing
## IAST