CVE-2023-53456
MEDIUM
MEDIUM
Priority: 0.01
BB Relevance:
36/100
Published: 2025-10-01
Modified: 2026-11-05
First seen: 2026-11-05
Status: active
Attack Surface
Low Complexity
No Interaction
CVSS Vector Breakdown
AV:
Local
AC:
Low
PR:
Low
UI:
None
S:
Unchanged
C:
None
I:
None
A:
High
Description
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 Software (11)
| Vendor | Product | Version |
|---|---|---|
| Linux | Linux | 00c31889f7513e9ffa6b2b4de8ad6d7f59a61c80 < cfa6a1a79ed6d336fac7a5d87eb5471e4401829f |
| Linux | Linux | 00c31889f7513e9ffa6b2b4de8ad6d7f59a61c80 < 5925e224cc6edfef57b20447f18323208461309b |
| Linux | Linux | 00c31889f7513e9ffa6b2b4de8ad6d7f59a61c80 < 47f3be62eab50b8cd7e1ae5fc2c4dae687497c34 |
| Linux | Linux | 00c31889f7513e9ffa6b2b4de8ad6d7f59a61c80 < 6d65079c69dc1feb817ed71f5bd15e83a7d6832d |
| Linux | Linux | 00c31889f7513e9ffa6b2b4de8ad6d7f59a61c80 < f61fc650c47849637fa1771a31a11674c824138a |
| Linux | Linux | 00c31889f7513e9ffa6b2b4de8ad6d7f59a61c80 < 25feffb3fbd51ae81d92c65cebc0e932663828b3 |
| Linux | Linux | 00c31889f7513e9ffa6b2b4de8ad6d7f59a61c80 < 4ed21975311247bb84e82298eeb359ec0a0fa84d |
| Linux | Linux | 00c31889f7513e9ffa6b2b4de8ad6d7f59a61c80 < b018c0440b871d8b001c996e95fa4538bd292de6 |
| Linux | Linux | 00c31889f7513e9ffa6b2b4de8ad6d7f59a61c80 < 47cd3770e31df942e2bb925a9a855c79ed0662eb |
| Linux | Linux | 3.2 |
| linux | linux_kernel | 3.2 – 4.14.326 |