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CVE-2019-18660

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Date: November 27, 2019

The Linux kernel before 5.4.1 on powerpc allows Information Exposure because the Spectre-RSB mitigation is not in place for all applicable CPUs, aka CID-39e72bf96f58. This is related to arch/powerpc/kernel/entry_64.S and arch/powerpc/kernel/security.c.

Language: C

Severity Score

Related Resources (25)

https://usn.ubuntu.com/4225-2/
https://usn.ubuntu.com/4226-1/
https://usn.ubuntu.com/4227-1/
https://usn.ubuntu.com/4225-1/
https://security-tracker.debian.org/tracker/CVE-2019-18660
https://seclists.org/bugtraq/2020/Jan/10
https://access.redhat.com/errata/RHSA-2020:0174
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.1
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/LYIFGYEDQXP5DVJQQUARQRK2PXKBKQGY/
http://www.openwall.com/lists/oss-security/2019/11/27/1
https://www.openwall.com/lists/oss-security/2019/11/27/1
https://people.canonical.com/~ubuntu-security/cve/CVE-2019-18660
https://access.redhat.com/security/cve/CVE-2019-18660
http://lists.opensuse.org/opensuse-security-announce/2019-12/msg00029.html
https://nvd.nist.gov/vuln/detail/CVE-2019-18660
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=39e72bf96f5847ba87cc5bd7a3ce0fed813dc9ad
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LYIFGYEDQXP5DVJQQUARQRK2PXKBKQGY/
https://security.netapp.com/advisory/ntap-20200103-0001/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/YWWOOJKZ4NQYN4RMFIVJ3ZIXKJJI3MKP/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YWWOOJKZ4NQYN4RMFIVJ3ZIXKJJI3MKP/
http://packetstormsecurity.com/files/155890/Slackware-Security-Advisory-Slackware-14.2-kernel-Updates.html
https://usn.ubuntu.com/4227-2/
https://usn.ubuntu.com/4228-1/
https://usn.ubuntu.com/4228-2/
https://www.mend.io/vulnerability-database/CVE-2019-18660

Severity Score

Weakness Type (CWE)

Exposure of Sensitive Information to an Unauthorized Actor

CWE-200

Top Fix

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Upgrade Version

Upgrade to version linux-libc-headers - 5.8;linux-yocto - 4.10+gitAUTOINC+805ea440c7_b259a5d744

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CVSS v3.1

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

CVSS v2

Base Score:
Access Vector (AV): LOCAL
Access Complexity (AC): MEDIUM
Authentication (AU): NONE
Confidentiality (C): PARTIAL
Integrity (I): NONE
Availability (A): NONE
Additional information:

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