Bug 2256134 (CVE-2023-52079) - CVE-2023-52079 msgpackr: crafted message leads to Denial of Service
Summary: CVE-2023-52079 msgpackr: crafted message leads to Denial of Service
Keywords:
Status: NEW
Alias: CVE-2023-52079
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks: 2256133
TreeView+ depends on / blocked
 
Reported: 2023-12-28 20:24 UTC by Patrick Del Bello
Modified: 2024-02-01 05:44 UTC (History)
5 users (show)

Fixed In Version:
Doc Type: ---
Doc Text:
A flaw was found in msgpackr. A malicious message could get stuck in a decoder loop, leading to a denial of service (DoS) attack.
Clone Of:
Environment:
Last Closed:
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Description Patrick Del Bello 2023-12-28 20:24:00 UTC 
msgpackr is a fast MessagePack NodeJS/JavaScript implementation. Prior to 1.10.1, when decoding user supplied MessagePack messages, users can trigger stuck threads by crafting messages that keep the decoder stuck in a loop. The fix is available in v1.10.1.  
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.

https://github.com/kriszyp/msgpackr/commit/18f44f8800e2261341cdf489d1ba1e35a0133602
https://github.com/kriszyp/msgpackr/security/advisories/GHSA-7hpj-7hhx-2fgx
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