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CVE-2018-15572

Date: August 19, 2018

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.

Language: C

Severity Score

Related Resources (17)

https://nvd.nist.gov/vuln/detail/CVE-2018-15572
https://www.debian.org/security/2018/dsa-4308
https://github.com/torvalds/linux/commit/fdf82a7856b32d905c39afc85e34364491e46346
https://usn.ubuntu.com/3775-2/
https://usn.ubuntu.com/3776-1/
https://usn.ubuntu.com/3775-1/
https://access.redhat.com/security/cve/CVE-2018-15572
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=fdf82a7856b32d905c39afc85e34364491e46346
https://usn.ubuntu.com/3777-3/
https://lists.debian.org/debian-lts-announce/2018/10/msg00003.html
https://people.canonical.com/~ubuntu-security/cve/CVE-2018-15572
https://usn.ubuntu.com/3776-2/
https://usn.ubuntu.com/3777-1/
https://usn.ubuntu.com/3777-2/
https://security-tracker.debian.org/tracker/CVE-2018-15572
https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.18.1
https://www.mend.io/vulnerability-database/CVE-2018-15572

Severity Score

Weakness Type (CWE)

Security Features

CWE-254

Insufficient Information

NVD-CWE-noinfo

CVSS v3.1

Base Score:
Attack Vector (AV): LOCAL
Attack Complexity (AC): LOW
Privileges Required (PR): LOW
User Interaction (UI): NONE
Scope (S): CHANGED
Confidentiality (C): HIGH
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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