CVE-2017-17864
LOWLinux Kernel < 4.14.8 - Pointer Leak via BPF Verifier states_equal Comparison
Title source: llmDescription
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."
References (6)
Core 6
Core References
Third Party Advisory x_refsource_misc
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
Third Party Advisory x_refsource_misc
https://anonscm.debian.org/cgit/kernel/linux.git/commit/?h=stretch-security&id=ad775f6ff7eebb93eedc2f592bc974260e7757b0
Third Party Advisory, VDB Entry vdb-entry
x_refsource_sectrack
http://www.securitytracker.com/id/1040059
Third Party Advisory, VDB Entry vdb-entry
x_refsource_bid
http://www.securityfocus.com/bid/102320
Third Party Advisory vendor-advisory
x_refsource_debian
https://www.debian.org/security/2017/dsa-4073
Vendor Advisory vendor-advisory
x_refsource_ubuntu
https://usn.ubuntu.com/usn/usn-3523-2/
Scores
CVSS v3
3.3
EPSS
0.0038
EPSS Percentile
30.2%
Attack Vector
LOCAL
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Details
CWE
CWE-200
Status
published
Products (2)
debian/debian_linux
9.0
linux/linux_kernel
< 4.14.8
Published
Dec 27, 2017
Tracked Since
Feb 18, 2026