Out of Bounds Read/Write Vulnerability in JPEG XL Encoder by Cloudflare
CVE-2024-11403

9.8CRITICAL

Key Information:

Vendor

Cloudflare

Status
LibJXL
Vendor
CVE Published:
25 November 2024

What is CVE-2024-11403?

An out of bounds read/write vulnerability exists in the JPEG XL encoder component from Cloudflare’s LibJXL library. This issue arises during the JPEG recompression process when handling untrusted input, particularly when the JxlEncoderAddJPEGFrame function is used. The JPEG decoder fails to adequately check buffer bounds, potentially resulting in out-of-bounds writes. The vulnerability is also present in jpegli, which may lead to reading uninitialized memory or function addresses. This poses significant security risks, especially in environments processing untrusted data.

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References

https://github.com/libjxl/libjxl/commit/9cc451b91b74ba470...

CVSS V3.1

Score:
9.8
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

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