CVE-2023-53456
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() -…
Does this matter?
Lower severity and a low EPSS score (0.16%). Track it; it rarely justifies an emergency change on its own.
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.
- CVSS 3.1
- 5.5 MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 0.16% probability · 5th percentile
- CISA KEV
- Not listed
- Affected
- linux/linux kernel
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
References
- https://git.kernel.org/stable/c/25feffb3fbd51ae81d92c65cebc0e932663828b3Patch
- https://git.kernel.org/stable/c/47cd3770e31df942e2bb925a9a855c79ed0662ebPatch
- https://git.kernel.org/stable/c/47f3be62eab50b8cd7e1ae5fc2c4dae687497c34Patch
- https://git.kernel.org/stable/c/4ed21975311247bb84e82298eeb359ec0a0fa84dPatch
- https://git.kernel.org/stable/c/5925e224cc6edfef57b20447f18323208461309bPatch
- https://git.kernel.org/stable/c/6d65079c69dc1feb817ed71f5bd15e83a7d6832dPatch
- https://git.kernel.org/stable/c/b018c0440b871d8b001c996e95fa4538bd292de6Patch
- https://git.kernel.org/stable/c/cfa6a1a79ed6d336fac7a5d87eb5471e4401829fPatch
- https://git.kernel.org/stable/c/f61fc650c47849637fa1771a31a11674c824138aPatch
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.