Tracker / CVE-2023-53456
CVE-2023-53456
Medium 5.5
In the Linux kernel, the following vulnerability has been resolved: scsi: qla4xxx: Add length check when parsing nlattrs There are three places that qla4xxx parses nlattrs: - qla4xxx_set_chap_entry() - qla4xxx_iface_set_param() - qla4xxx_sysfs_ddb_set_param() and each of them directly converts the nlattr to specific pointer of structure without length checking. This could be dangerous as those attributes are not validated and a malformed nlattr (e.g., length 0) could result in an OOB read that leaks heap dirty data. Add the nla_len check before accessing the nlattr data and return EINVAL if the length check fails.
Affected products and versions
| linux | linux_kernel · 3.2 → 4.14.326 |
|---|---|
| linux | linux_kernel · 4.15 → 4.19.295 |
| linux | linux_kernel · 4.20 → 5.4.257 |
| linux | linux_kernel · 5.11 → 5.15.132 |
| linux | linux_kernel · 5.16 → 6.1.53 |
| linux | linux_kernel · 5.5 → 5.10.195 |
| linux | linux_kernel · 6.2 → 6.4.16 |
| linux | linux_kernel · 6.5 → 6.5.3 |
Analysis
This page is not indexable yet.Until it carries original analysis — what it actually exposes, how to check in two minutes whether a system was touched, what to do if it was — the page stays noindex. The database decides that, not the template.