CVE-2017-17864

low
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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."

References

http://www.securityfocus.com/bid/102320

http://www.securitytracker.com/id/1040059

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

https://usn.ubuntu.com/usn/usn-3523-2/

https://www.debian.org/security/2017/dsa-4073

Details

Source: MITRE

Published: 2017-12-27

Updated: 2018-01-13

Type: CWE-200

Risk Information

CVSS v2

Base Score: 2.1

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

Impact Score: 2.9

Exploitability Score: 3.9

Severity: LOW

CVSS v3

Base Score: 3.3

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

Impact Score: 1.4

Exploitability Score: 1.8

Severity: LOW

Vulnerable Software

Configuration 1

OR

cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions up to 4.14.8 (inclusive)

Configuration 2

OR

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

Tenable Plugins

View all (10 total)

IDNameProductFamilySeverity
124985EulerOS Virtualization for ARM 64 3.0.1.0 : kernel (EulerOS-SA-2019-1532)NessusHuawei Local Security Checks
high
106748SUSE SLED12 / SLES12 Security Update : kernel (SUSE-SU-2018:0416-1) (Spectre)NessusSuSE Local Security Checks
critical
106740openSUSE Security Update : the Linux Kernel (openSUSE-2018-153) (Spectre)NessusSuSE Local Security Checks
critical
106672SUSE SLED12 / SLES12 Security Update : kernel (SUSE-SU-2018:0383-1) (Spectre)NessusSuSE Local Security Checks
critical
106024Fedora 27 : kernel (2018-22d5fa8a90)NessusFedora Local Security Checks
high
105748Ubuntu 17.10 : linux-raspi2 vulnerabilities (USN-3523-3)NessusUbuntu Local Security Checks
high
105747Ubuntu 16.04 LTS : linux-hwe, linux-azure, linux-gcp, linux-oem vulnerabilities (USN-3523-2) (Meltdown)NessusUbuntu Local Security Checks
high
105726Ubuntu 17.10 : linux vulnerabilities (USN-3523-1) (Meltdown)NessusUbuntu Local Security Checks
high
105596Fedora 26 : kernel (2018-8ed5eff2c0)NessusFedora Local Security Checks
high
105433Debian DSA-4073-1 : linux - security updateNessusDebian Local Security Checks
high