CVE-2020-8428 — Use After Free in Kernel
Severity
7.1HIGHNVD
OSV6.5OSV6.2
EPSS
0.1%
top 73.98%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
Timeline
PublishedJan 29
Latest updateSep 26
Description
fs/namei.c in the Linux kernel before 5.5 has a may_create_in_sticky use-after-free, which allows local users to cause a denial of service (OOPS) or possibly obtain sensitive information from kernel memory, aka CID-d0cb50185ae9. One attack vector may be an open system call for a UNIX domain socket, if the socket is being moved to a new parent directory and its old parent directory is being removed.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:HExploitability: 1.8 | Impact: 5.2
Affected Packages8 packages
Patches
🔴Vulnerability Details
7OSV▶
linux, linux-aws, linux-gcp, linux-gcp-5.3, linux-hwe, linux-kvm, linux-oracle, linux-oracle-5.3, linux-raspi2, linux-raspi2-5.3 vulnerabilities↗2020-04-10
OSV
▶
OSV▶
linux-aws, linux-aws-hwe, linux-azure, linux-gcp, linux-gke-4.15, linux-kvm, linux-oem, linux-oracle, linux-raspi2, linux-snapdragon vulnerabilities↗2020-04-07