Vulnerability Details CVE-2022-23086
Handlers for *_CFG_PAGE read / write ioctls in the mpr, mps, and mpt drivers allocated a buffer of a caller-specified size, but copied to it a fixed size header. Other heap content would be overwritten if the specified size was too small.
Users with access to the mpr, mps or mpt device node may overwrite heap data, potentially resulting in privilege escalation. Note that the device node is only accessible to root and members of the operator group.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.002
EPSS Ranking 38.9%
CVSS Severity
CVSS v3 Score 7.8
References
Products affected by CVE-2022-23086
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cpe:2.3:o:freebsd:freebsd:12.0
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cpe:2.3:o:freebsd:freebsd:12.1
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cpe:2.3:o:freebsd:freebsd:12.2
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cpe:2.3:o:freebsd:freebsd:12.3
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cpe:2.3:o:freebsd:freebsd:13.0