CVE-2017-17864

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 v3.0 3.3 LOW
CVSS v2.0 2.1 LOW

3.3^/10

CVSS v3.0 : LOW

Vector : AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

Exploitability : 1.8 / Impact : 1.4

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

2.1^/10

CVSS v2.0 : LOW

Vector : AV:L/AC:L/Au:N/C:P/I:N/A:N

Exploitability : 3.9 / Impact : 2.9

Access Vector LOCAL

Access Complexity LOW

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact NONE

Availability Impact NONE

References

Link	Resource
https://www.debian.org/security/2017/dsa-4073	Third Party Advisory
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
https://anonscm.debian.org/cgit/kernel/linux.git/commit/?h=stretch-security&id=ad775f6ff7eebb93eedc2f592bc974260e7757b0	Third Party Advisory
http://www.securitytracker.com/id/1040059	Third Party Advisory VDB Entry
http://www.securityfocus.com/bid/102320	Third Party Advisory VDB Entry
https://usn.ubuntu.com/usn/usn-3523-2/

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Configurations

Configuration 1 (hide)

cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

Configuration 2 (hide)

cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*

Information

Published : 2017-12-27 09:08

Updated : 2018-01-12 18:29

NVD link : CVE-2017-17864

Mitre link : CVE-2017-17864

JSON object : View

CWE

CWE-200

Exposure of Sensitive Information to an Unauthorized Actor

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Products Affected

debian

debian_linux

linux

linux_kernel

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