CVE-2019-18660
Medium
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.
SeverityMedium
CVSS4.7
Exploit probability—
Product
Linux Kernel
PublishedNov 27, 2019
First seenNov 27, 2019
How to fix
Update
- linux linux_kernel5.4.1 or later
Vendor advisories
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LYIFGYEDQXP5DVJQQUARQRK2PXKBKQGY/
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YWWOOJKZ4NQYN4RMFIVJ3ZIXKJJI3MKP/
- usn.ubuntu.com/4228-1/
- usn.ubuntu.com/4227-1/
- usn.ubuntu.com/4226-1/
- usn.ubuntu.com/4225-1/
- usn.ubuntu.com/4228-2/
- usn.ubuntu.com/4227-2/
- access.redhat.com/errata/RHSA-2020:0174
- usn.ubuntu.com/4225-2/
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| linux linux_kernel | v < 5.4.1 | 5.4.1 |
| canonical ubuntu_linux | 14.04, 16.04, 18.04, 19.04, 19.10 | — |
| fedoraproject fedora | 30, 31 | — |
| opensuse leap | 15.1 | — |
| redhat enterprise_linux | 6.0, 7.0, 8.0 | — |
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