CVE-2023-53456None▾ SunlitIn 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() -…
▾ Sunlit zone — Low / medium · no exploitation signal
impact 2.8 · likelihood 0 · exploitation 0
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Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake.
Exploit-prediction probability, daily snapshots since Nov 5.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via CVEORG
Last analysed / modified upstream
0.2%
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.
Linux >= 00c31889f7513e9ffa6b2b4de8ad6d7f59a61c80 < cfa6a1a79ed6d336fac7a5d87eb5471e4401829fLinux >= 00c31889f7513e9ffa6b2b4de8ad6d7f59a61c80 < 5925e224cc6edfef57b20447f18323208461309bLinux >= 00c31889f7513e9ffa6b2b4de8ad6d7f59a61c80 < 47f3be62eab50b8cd7e1ae5fc2c4dae687497c34Linux >= 00c31889f7513e9ffa6b2b4de8ad6d7f59a61c80 < 6d65079c69dc1feb817ed71f5bd15e83a7d6832dLinux >= 00c31889f7513e9ffa6b2b4de8ad6d7f59a61c80 < f61fc650c47849637fa1771a31a11674c824138aLinux >= 00c31889f7513e9ffa6b2b4de8ad6d7f59a61c80 < 25feffb3fbd51ae81d92c65cebc0e932663828b3Linux >= 00c31889f7513e9ffa6b2b4de8ad6d7f59a61c80 < 4ed21975311247bb84e82298eeb359ec0a0fa84dLinux >= 00c31889f7513e9ffa6b2b4de8ad6d7f59a61c80 < b018c0440b871d8b001c996e95fa4538bd292de6Linux >= 00c31889f7513e9ffa6b2b4de8ad6d7f59a61c80 < 47cd3770e31df942e2bb925a9a855c79ed0662ebLinux 3.2Refer to the linked advisories for vendor-supplied fixes and affected version ranges.
Connected by shared product, vendor, weakness, or advisory.
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