GHSA-7hpj-7hhx-2fgx: msgpackr's conversion of property names to strings can trigger infinite recursion

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1. GitHub Advisory Database
2. GitHub Reviewed
3. CVE-2023-52079

msgpackr’s conversion of property names to strings can trigger infinite recursion

Moderate severity GitHub Reviewed Published Dec 28, 2023 in kriszyp/msgpackr • Updated Dec 28, 2023

Package

npm msgpackr (npm)

Affected versions

< 1.10.1

Description

Impact

When decoding user supplied MessagePack messages, users can trigger stuck threads by crafting messages that keep the decoder stuck in a loop.

Patches

The fix is available in v1.10.1

Workarounds

Exploits seem to require structured cloning, replacing the 0x70 extension with your own (that throws an error or does something other than recursive referencing) should mitigate the issue.

References****References

• GHSA-7hpj-7hhx-2fgx
• https://nvd.nist.gov/vuln/detail/CVE-2023-52079
• kriszyp/msgpackr@18f44f8

Published to the GitHub Advisory Database

Dec 28, 2023

Last updated

Dec 28, 2023