kernel/bpf/verifier.c in the Linux kernel through 4.14.8 mishandles states_equal comparisons...
Vulnerability Description
kernel/bpf/verifier.c in the Linux kernel through 4.14.8 mishandles states_equal comparisons between the pointer data type and the UNKNOWN_VALUE data type, which allows local users to obtain potentially sensitive address information, aka a "pointer leak."
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
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Credits & Attribution
No credits recorded in the NVD database.
References
- https://anonscm.debian.org/cgit/kernel/linux.git/tree/debian/patches/bugfix/all/bpf-verifier-fix-states_equal-comparison-of-pointer-and-unknown.patch?h=stretch-security
- https://anonscm.debian.org/cgit/kernel/linux.git/commit/?h=stretch-security&id=ad775f6ff7eebb93eedc2f592bc974260e7757b0
- http://www.securitytracker.com/id/1040059
- http://www.securityfocus.com/bid/102320
- https://www.debian.org/security/2017/dsa-4073
- https://usn.ubuntu.com/usn/usn-3523-2/
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Weaknesses (CWE)
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MITRE ATT&CK TTPs
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