CVE-2017-17863

high
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Description

kernel/bpf/verifier.c in the Linux kernel 4.9.x through 4.9.71 does not check the relationship between pointer values and the BPF stack, which allows local users to cause a denial of service (integer overflow or invalid memory access) or possibly have unspecified other impact.

References

http://www.securityfocus.com/bid/102321

http://www.securitytracker.com/id/1040058

https://anonscm.debian.org/cgit/kernel/linux.git/tree/debian/patches/bugfix/all/bpf-reject-out-of-bounds-stack-pointer-calculation.patch?h=stretch-security

https://usn.ubuntu.com/3523-3/

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

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

https://www.spinics.net/lists/stable/msg206985.html

Details

Source: MITRE

Published: 2017-12-27

Updated: 2018-03-16

Type: CWE-190

Risk Information

CVSS v2

Base Score: 7.2

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

Impact Score: 10

Exploitability Score: 3.9

Severity: HIGH

CVSS v3

Base Score: 7.8

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

Impact Score: 5.9

Exploitability Score: 1.8

Severity: HIGH

Vulnerable Software

Configuration 1

OR

cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from 4.9.0 to 4.9.71 (inclusive)

Configuration 2

OR

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

Tenable Plugins

View all (6 total)

IDNameProductFamilySeverity
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