Summary
cyfs-base vulnerable to misaligned pointer dereference in ChunkId::new
The function ChunkId::new creates a misaligned pointer by casting mutable pointer of u8 slice which has alignment 1 to the mutable pointer of u32 which has alignment 4, and dereference the misaligned pointer leading UB, which should not be allowed in safe function.
Impact
Affected versions
Security releases
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.
Already deployed Kodem?
See it in your environmentNew to Kodem? Get a demo →Remediation advice
Kodem Kai can prioritize this vulnerability in your dependency tree and generate a fix recommendation.
Frequently Asked Questions
- What is GHSA-G753-GHR7-Q33W? GHSA-G753-GHR7-Q33W is a medium-severity security vulnerability in cyfs-base (rust), affecting versions <= 0.6.12. No fixed version is listed yet.
- Which versions of cyfs-base are affected by GHSA-G753-GHR7-Q33W? cyfs-base (rust) versions <= 0.6.12 is affected.
- Is there a fix for GHSA-G753-GHR7-Q33W? No fixed version is listed for GHSA-G753-GHR7-Q33W yet. Monitor the advisory for updates and apply mitigations in the interim.
- Is GHSA-G753-GHR7-Q33W exploitable, and should I be worried? Whether GHSA-G753-GHR7-Q33W 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-G753-GHR7-Q33W 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.