Vulnerability · Published Nov 1, 2021 · Assigned by Google
CVE-2021-22563Memory Overread in libjxl
Medium 4.5
In plain English
A medium-severity security flaw in libjxl from Google LLC. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 24% of all known vulnerabilities).
Severity (CVSS 3.1)4.5Medium
Exploit odds (30 days)0.3%top 75.9% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official 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
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Google LLC | libjxl | unspecified – through 0.6.0 |
Weakness: CWE-126 · Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L
References
- https://github.com/libjxl/libjxl/issues/735 x_refsource_MISC
- https://github.com/libjxl/libjxl/pull/757 x_refsource_MISC