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CVE-2017-17864

Good to know:

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Date: December 23, 2017

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."

Language: C

Severity Score

Related Resources (9)

https://security-tracker.debian.org/tracker/CVE-2017-17864
https://nvd.nist.gov/vuln/detail/CVE-2017-17864
http://www.securitytracker.com/id/1040059
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
http://www.securityfocus.com/bid/102320
https://usn.ubuntu.com/usn/usn-3523-2/
https://anonscm.debian.org/cgit/kernel/linux.git/commit/?h=stretch-security&id=ad775f6ff7eebb93eedc2f592bc974260e7757b0
https://www.debian.org/security/2017/dsa-4073
https://www.mend.io/vulnerability-database/CVE-2017-17864

Severity Score

Weakness Type (CWE)

Information Leak / Disclosure

CWE-200

Top Fix

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CVSS v3.1

Base Score:
Attack Vector (AV): LOCAL
Attack Complexity (AC): LOW
Privileges Required (PR): LOW
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): LOW
Integrity (I): NONE
Availability (A): NONE

CVSS v2

Base Score:
Access Vector (AV): LOCAL
Access Complexity (AC): LOW
Authentication (AU): NONE
Confidentiality (C): PARTIAL
Integrity (I): NONE
Availability (A): NONE
Additional information:

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