Memory Overread in libjxl
CVE-2021-22563

4.5MEDIUM

Key Information:

Vendor

Google
Status
Libjxl
Vendor
CVE Published:
1 November 2021

What is CVE-2021-22563?

Invalid JPEG XL images using libjxl can cause an out of bounds access on a std::vector<std::vector> 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

Affected Version(s)

libjxl <= 0.6.0

References

https://github.com/libjxl/libjxl/issues/735
x_refsource_MISC
https://github.com/libjxl/libjxl/pull/757
x_refsource_MISC

CVSS V3.1

Score:
4.5
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Local
Attack Complexity:
High
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.