CVE-2019-18660

Description

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.

Category

4.7
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.03%
Vendor Advisory fedoraproject.org Vendor Advisory fedoraproject.org Vendor Advisory opensuse.org Vendor Advisory ubuntu.com Vendor Advisory ubuntu.com Vendor Advisory ubuntu.com Vendor Advisory ubuntu.com Vendor Advisory ubuntu.com Vendor Advisory ubuntu.com Vendor Advisory redhat.com Vendor Advisory ubuntu.com Vendor Advisory kernel.org Vendor Advisory kernel.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://www.openwall.com/lists/oss-security/2019/11/27/1 patch mailing list third party advisory
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=39e72bf96f5847ba87cc5bd7a3ce0fed813dc9ad patch vendor advisory
http://www.openwall.com/lists/oss-security/2019/11/27/1 patch mailing list third party advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LYIFGYEDQXP5DVJQQUARQRK2PXKBKQGY/ vendor advisory
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.1 release notes vendor advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YWWOOJKZ4NQYN4RMFIVJ3ZIXKJJI3MKP/ vendor advisory
http://lists.opensuse.org/opensuse-security-announce/2019-12/msg00029.html third party advisory vendor advisory
https://security.netapp.com/advisory/ntap-20200103-0001/ third party advisory
https://usn.ubuntu.com/4228-1/ third party advisory vendor advisory
https://usn.ubuntu.com/4227-1/ third party advisory vendor advisory
https://usn.ubuntu.com/4226-1/ third party advisory vendor advisory
https://usn.ubuntu.com/4225-1/ third party advisory vendor advisory
https://usn.ubuntu.com/4228-2/ third party advisory vendor advisory
https://usn.ubuntu.com/4227-2/ third party advisory vendor advisory
https://seclists.org/bugtraq/2020/Jan/10 third party advisory mailing list
http://packetstormsecurity.com/files/155890/Slackware-Security-Advisory-Slackware-14.2-kernel-Updates.html third party advisory vdb entry
https://access.redhat.com/errata/RHSA-2020:0174 third party advisory vendor advisory
https://usn.ubuntu.com/4225-2/ third party advisory vendor advisory

Frequently Asked Questions

What is the severity of CVE-2019-18660?
CVE-2019-18660 has been scored as a medium severity vulnerability.
How to fix CVE-2019-18660?
To fix CVE-2019-18660, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2019-18660 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2019-18660 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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