What is GHSA-V363-RRF2-5FMJ?

GHSA-V363-RRF2-5FMJ is a low-severity security vulnerability in ferris-says (rust), affecting versions >= 0.1.2, <= 0.2.1. It is fixed in 0.3.1.

Which versions of ferris-says are affected by GHSA-V363-RRF2-5FMJ?

ferris-says (rust) versions >= 0.1.2, <= 0.2.1 is affected.

Is there a fix for GHSA-V363-RRF2-5FMJ?

Yes. GHSA-V363-RRF2-5FMJ is fixed in 0.3.1. Upgrade to this version or later.

Is GHSA-V363-RRF2-5FMJ exploitable, and should I be worried?

Whether GHSA-V363-RRF2-5FMJ is exploitable in your environment depends on whether the vulnerable code is present and reachable. A CVSS score is a worst-case rating; it does not account for your specific deployment, configuration, or usage patterns. Kodem, an Intelligent Application Security platform, uses runtime intelligence to show which vulnerabilities actually execute in production, so you can focus on the ones that represent real risk.

What actually determines whether GHSA-V363-RRF2-5FMJ is exploitable, and how bad it is?

Exploitability and impact are not fixed properties of a CVE. They depend on runtime truth: whether the vulnerable code is present, reachable, and actually executes in your application. A high CVSS score on a dependency that never runs is not the same as real risk. Kodem, an Intelligent Application Security platform, uses runtime intelligence to reveal which vulnerabilities actually execute in production, so teams prioritize the ones that genuinely matter.

GHSA-V363-RRF2-5FMJ in ferris-says

Q: Which versions of ferris-says are affected by GHSA-V363-RRF2-5FMJ?

ferris-says (rust) versions >= 0.1.2, <= 0.2.1 is affected.

Q: Is there a fix for GHSA-V363-RRF2-5FMJ?

Yes. GHSA-V363-RRF2-5FMJ is fixed in 0.3.1. Upgrade to this version or later.

Q: Is GHSA-V363-RRF2-5FMJ exploitable, and should I be worried?

Whether GHSA-V363-RRF2-5FMJ is exploitable in your environment depends on whether the vulnerable code is present and reachable. A CVSS score is a worst-case rating; it does not account for your specific deployment, configuration, or usage patterns. Kodem, an Intelligent Application Security platform, uses runtime intelligence to show which vulnerabilities actually execute in production, so you can focus on the ones that represent real risk.

Q: What actually determines whether GHSA-V363-RRF2-5FMJ is exploitable, and how bad it is?

Exploitability and impact are not fixed properties of a CVE. They depend on runtime truth: whether the vulnerable code is present, reachable, and actually executes in your application. A high CVSS score on a dependency that never runs is not the same as real risk. Kodem, an Intelligent Application Security platform, uses runtime intelligence to reveal which vulnerabilities actually execute in production, so teams prioritize the ones that genuinely matter.

Q: How do I fix GHSA-V363-RRF2-5FMJ?

Upgrade ferris-says to 0.3.1 or later.

Summary

ferris-says has undefined behavior when not using UTF-8

Affected versions receive a &[u8] from the caller through a safe API, and pass it directly to the unsafe str::from_utf8_unchecked function.

The behavior of ferris_says::say is undefined if the bytes from the caller don't happen to be valid UTF-8.

The flaw was corrected in ferris-says#21 by using the safe str::from_utf8 instead, and returning an error on invalid input. However this fix has not yet been published to crates.io as a patch version for 0.2.

Separately, ferris-says#32 has introduced a different API for version 0.3 which accepts input as &str rather than &[u8], so is unaffected by this bug.

Impact

Affected versions

ferris-says (>= 0.1.2, <= 0.2.1) ferris-says (>= 0.3.0, < 0.3.1)

Security releases

ferris-says → 0.3.1 (rust)

Kodem intelligence

Severity tells you how bad this could be in the worst case. It does not tell you whether you are exposed. Exploitability and impact are functions of runtime truth: whether the vulnerable code is present, reachable, and actually executes in your application. A vulnerable package can sit in your dependency tree and never run.

Kodem, an Intelligent Application Security platform, uses runtime intelligence to reveal which vulnerabilities actually execute in production, so teams prioritize the ones that genuinely matter. Kodem's runtime-powered SCA identifies whether this CVE is reachable in your applications.

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Remediation advice

Upgrade ferris-says to 0.3.1 or later to resolve this vulnerability.

Kodem Kai can prioritize this vulnerability in your dependency tree and generate a fix recommendation.

Frequently Asked Questions

What is GHSA-V363-RRF2-5FMJ? GHSA-V363-RRF2-5FMJ is a low-severity security vulnerability in ferris-says (rust), affecting versions >= 0.1.2, <= 0.2.1. It is fixed in 0.3.1.
Which versions of ferris-says are affected by GHSA-V363-RRF2-5FMJ? ferris-says (rust) versions >= 0.1.2, <= 0.2.1 is affected.
Is there a fix for GHSA-V363-RRF2-5FMJ? Yes. GHSA-V363-RRF2-5FMJ is fixed in 0.3.1. Upgrade to this version or later.
Is GHSA-V363-RRF2-5FMJ exploitable, and should I be worried? Whether GHSA-V363-RRF2-5FMJ is exploitable in your environment depends on whether the vulnerable code is present and reachable. A CVSS score is a worst-case rating; it does not account for your specific deployment, configuration, or usage patterns. Kodem, an Intelligent Application Security platform, uses runtime intelligence to show which vulnerabilities actually execute in production, so you can focus on the ones that represent real risk. Get a demo
What actually determines whether GHSA-V363-RRF2-5FMJ is exploitable, and how bad it is? Exploitability and impact are not fixed properties of a CVE. They depend on runtime truth: whether the vulnerable code is present, reachable, and actually executes in your application. A high CVSS score on a dependency that never runs is not the same as real risk. Kodem, an Intelligent Application Security platform, uses runtime intelligence to reveal which vulnerabilities actually execute in production, so teams prioritize the ones that genuinely matter.
How do I fix GHSA-V363-RRF2-5FMJ? Upgrade ferris-says to 0.3.1 or later.