CVE-2019-18660Sensitive Information Exposure in Kernel

Severity
4.7MEDIUMNVD
OSV9.8OSV8.8
EPSS
0.0%
top 91.87%
CISA KEV
Not in KEV
Exploit
No known exploits
Timeline
PublishedNov 27
Latest updateMay 24

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 vector

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:NExploitability: 1.0 | Impact: 3.6

Affected Packages5 packages

NVDlinux/linux_kernel< 5.4.1
Debianlinux/linux_kernel< 5.3.15-1+3
Ubuntulinux/linux_kernel< 4.4.0-171.200+1
debiandebian/linux< linux 5.3.15-1 (bookworm)
NVDopensuse/leap15.1

Also affects: Ubuntu Linux 14.04, 16.04, 18.04, 19.04, 19.10, Enterprise Linux 6.0, 7.0, 8.0, Fedora 30, 31

Patches

🔴Vulnerability Details

11
GHSA
GHSA-vrqr-mqc4-gmrf: The Linux kernel through 52022-05-24
OSV
linux-hwe vulnerabilities2020-01-18
OSV
linux, linux-aws, linux-kvm, linux-raspi2, linux-snapdragon vulnerabilities2020-01-07
OSV
linux-azure vulnerabilities2020-01-07
OSV
linux, linux-aws, linux-aws-5.0, linux-azure, linux-gcp, linux-gke-5.0, linux-kvm, linux-oem-osp1, linux-oracle, linux-oracle-5.0, linux-raspi2 vulnerabilities2020-01-07

📋Vendor Advisories

9
Ubuntu
Linux kernel (HWE) vulnerabilities2020-01-18
Ubuntu
Linux kernel vulnerabilities2020-01-07
Ubuntu
Linux kernel vulnerabilities2020-01-07
Ubuntu
Linux kernel vulnerabilities2020-01-07
Ubuntu
Linux kernel (Xenial HWE) vulnerabilities2020-01-07

💬Community

2
Bugzilla
CVE-2019-18660 kernel: powerpc: incomplete Spectre-RSB mitigation leads to information exposure2019-11-28
Bugzilla
CVE-2019-18660 kernel: incomplete Spectre-RSB mitigation leads to information exposure [fedora-all]2019-11-28