CVE-2021-22563

Public Exploit
Memory Overread in libjxl

Description

Invalid JPEG XL images using libjxl can cause an out of bounds access on a std::vector<std::vector<T>> when rendering splines. The OOB read access can either lead to a segfault, or rendering splines based on other process memory. It is recommended to upgrade past 0.6.0 or patch with https://github.com/libjxl/libjxl/pull/757

Categories

4.5
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.04%
Third-Party Advisory github.com Third-Party Advisory github.com
Affected: Google LLC libjxl
Published at:
Updated at:

References

Link Tags
https://github.com/libjxl/libjxl/issues/735 issue tracking patch exploit third party advisory
https://github.com/libjxl/libjxl/pull/757 third party advisory patch

Frequently Asked Questions

What is the severity of CVE-2021-22563?
CVE-2021-22563 has been scored as a medium severity vulnerability.
How to fix CVE-2021-22563?
To fix CVE-2021-22563, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-22563 being actively exploited in the wild?
It is possible that CVE-2021-22563 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-22563?
CVE-2021-22563 affects Google LLC libjxl.
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