CVE Vulnerability

CVE-2018-15572

The spectre_v2_select_mitigation function in arch/x86/kernel/cpu/bugs.c in the Linux kernel before 4.18.1 does not always fill RSB upon a context switch, which makes it easier for attackers to conduct userspace-userspace spectreRSB attacks.

2.1 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 2.9

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact PARTIAL

Integrity Impact NONE

Availability Impact NONE

Scope

6.5 /10

CVSS v3.0 : MEDIUM

V3 Legend

Vector :

Exploitability : 2 / Impact : 4

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Scope CHANGED

References
Link Resource
https://github.com/torvalds/linux/commit/fdf82a7856b32d905c39afc85e34364491e46346 Mitigation Patch
https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.18.1 Mitigation Patch
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=fdf82a7856b32d905c39afc85e34364491e46346 Mitigation Patch
https://www.debian.org/security/2018/dsa-4308 Third Party Advisory
https://usn.ubuntu.com/3777-2/ Third Party Advisory
https://usn.ubuntu.com/3777-1/ Third Party Advisory
https://usn.ubuntu.com/3776-2/ Third Party Advisory
https://usn.ubuntu.com/3776-1/ Third Party Advisory
https://usn.ubuntu.com/3775-2/ Third Party Advisory
https://usn.ubuntu.com/3775-1/ Third Party Advisory
https://lists.debian.org/debian-lts-announce/2018/10/msg00003.html Mailing List Third Party Advisory
https://usn.ubuntu.com/3777-3/ Third Party Advisory
Configurations

Configuration 1

cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:esm:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Information

Published : 2018-08-20 02:29

Updated : 2019-10-03 12:03

NVD link : CVE-2018-15572

Mitre link : CVE-2018-15572

Products Affected
No products.
CWE
NVD-CWE-noinfo