CVE-2023-53543None▾ SunlitIn the Linux kernel, the following vulnerability has been resolved: vdpa: Add max vqp attr to vdpa_nl_policy for nlattr length check The vdpa_nl_policy structure is used to validate the nlattr when parsing the incoming nlmsg. It will e…
▾ 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:
vdpa: Add max vqp attr to vdpa_nl_policy for nlattr length check
The vdpa_nl_policy structure is used to validate the nlattr when parsing the incoming nlmsg. It will ensure the attribute being described produces a valid nlattr pointer in info->attrs before entering into each handler in vdpa_nl_ops.
That is to say, the missing part in vdpa_nl_policy may lead to illegal nlattr after parsing, which could lead to OOB read just like CVE-2023-3773.
This patch adds the missing nla_policy for vdpa max vqp attr to avoid such bugs.
Linux >= 447092100c7e71aa20469a270fcee441d807ed58 < baed19c108ac8287425b93a44985bbe9a0b1af8dLinux >= ad69dd0bf26b88ec6ab26f8bbe5cd74fbed7672a < ff71709445ac033e6e250d971683110e4781c068Linux >= ad69dd0bf26b88ec6ab26f8bbe5cd74fbed7672a < ea65e8b5e6b1a34deda7564f09c90e9e80db436aLinux >= ad69dd0bf26b88ec6ab26f8bbe5cd74fbed7672a < 5d6ba607d6cb5c58a4ddf33381e18c83dbb4098fLinux >= 5.15.198 < 5.15.209Linux 5.16Refer to the linked advisories for vendor-supplied fixes and affected version ranges.
Connected by shared product, vendor, weakness, or advisory.
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