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CVE
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CVE-2017-17864Date: (C)2017-12-29   (M)2024-04-30


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."

CVSS Score and Metrics +CVSS Score and Metrics -

CVSS V3 Severity:CVSS V2 Severity:
CVSS Score : 3.3CVSS Score : 2.1
Exploit Score: 1.8Exploit Score: 3.9
Impact Score: 1.4Impact Score: 2.9
 
CVSS V3 Metrics:CVSS V2 Metrics:
Attack Vector: LOCALAccess Vector: LOCAL
Attack Complexity: LOWAccess Complexity: LOW
Privileges Required: LOWAuthentication: NONE
User Interaction: NONEConfidentiality: PARTIAL
Scope: UNCHANGEDIntegrity: NONE
Confidentiality: LOWAvailability: NONE
Integrity: NONE 
Availability: NONE 
  
Reference:
BID-102320
SECTRACK-1040059
DSA-4073
USN-3523-2
https://anonscm.debian.org/cgit/kernel/linux.git/commit/?h=stretch-security&id=ad775f6ff7eebb93eedc2f592bc974260e7757b0
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

CPE    2
cpe:/o:debian:debian_linux:9.0
cpe:/o:linux:linux_kernel
CWE    1
CWE-200
OVAL    32
oval:org.secpod.oval:def:113850
oval:org.secpod.oval:def:703938
oval:org.secpod.oval:def:53218
oval:org.secpod.oval:def:89045863
...

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