Vulnerability 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.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | < 5.4.1 |
| Canonical | Ubuntu Linux | 14.04 |
| Fedoraproject | Fedora | 30 |
| Opensuse | Leap | 15.1 |
| Redhat | Enterprise Linux | 6.0 |
Related Weaknesses (CWE)
References
- http://lists.opensuse.org/opensuse-security-announce/2019-12/msg00029.htmlThird Party Advisory
- http://packetstormsecurity.com/files/155890/Slackware-Security-Advisory-SlackwarThird Party AdvisoryVDB Entry
- http://www.openwall.com/lists/oss-security/2019/11/27/1Mailing ListPatchThird Party Advisory
- https://access.redhat.com/errata/RHSA-2020:0174Third Party Advisory
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.1Release NotesVendor Advisory
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=39PatchVendor Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://seclists.org/bugtraq/2020/Jan/10Mailing ListThird Party Advisory
- https://security.netapp.com/advisory/ntap-20200103-0001/Third Party Advisory
- https://usn.ubuntu.com/4225-1/Third Party Advisory
- https://usn.ubuntu.com/4225-2/Third Party Advisory
- https://usn.ubuntu.com/4226-1/Third Party Advisory
- https://usn.ubuntu.com/4227-1/Third Party Advisory
- https://usn.ubuntu.com/4227-2/Third Party Advisory
FAQ
What is CVE-2019-18660?
CVE-2019-18660 is a vulnerability with a CVSS score of 4.7 (MEDIUM). 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/k...
How severe is CVE-2019-18660?
CVE-2019-18660 has been rated MEDIUM with a CVSS base score of 4.7/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2019-18660?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel, Canonical Ubuntu Linux, Fedoraproject Fedora, Opensuse Leap, Redhat Enterprise Linux.