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MEDIUM · 4.5

CVE-2021-22564

For certain valid JPEG XL images with a size slightly larger than an integer number of groups (256x256 pixels) when processing the groups out of order the decoder can perform an out of bounds copy of ...

Vulnerability Description

For certain valid JPEG XL images with a size slightly larger than an integer number of groups (256x256 pixels) when processing the groups out of order the decoder can perform an out of bounds copy of image pixels from an image buffer in the heap to another. This copy can occur when processing the right or bottom edges of the image, but only when groups are processed in certain order. Groups can be processed out of order in multi-threaded decoding environments with heavy thread load but also with images that contain the groups in an arbitrary order in the file. It is recommended to upgrade past 0.6.0 or patch with https://github.com/libjxl/libjxl/pull/775

CVSS Score

4.5

MEDIUM

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L
Attack Vector
LOCAL
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
LOW
Integrity
LOW
Availability
LOW

Affected Products

VendorProductVersions
Libjxl ProjectLibjxl<= 0.6.0

Related Weaknesses (CWE)

CWE-122CWE-787

References

FAQ

What is CVE-2021-22564?

CVE-2021-22564 is a vulnerability with a CVSS score of 4.5 (MEDIUM). For certain valid JPEG XL images with a size slightly larger than an integer number of groups (256x256 pixels) when processing the groups out of order the decoder can perform an out of bounds copy of ...

How severe is CVE-2021-22564?

CVE-2021-22564 has been rated MEDIUM with a CVSS base score of 4.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2021-22564?

Check the references section above for vendor advisories and patch information. Affected products include: Libjxl Project Libjxl.