CVE-2020-10690
Severity
6.4MEDIUM
EPSS
0.1%
top 68.10%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
Timeline
PublishedMay 8
Latest updateMay 24
Description
There is a use-after-free in kernel versions before 5.5 due to a race condition between the release of ptp_clock and cdev while resource deallocation. When a (high privileged) process allocates a ptp device file (like /dev/ptpX) and voluntarily goes to sleep. During this time if the underlying device is removed, it can cause an exploitable condition as the process wakes up to terminate and clean all attached files. The system crashes due to the cdev structure being invalid (as already freed) whi…
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:HExploitability: 0.6 | Impact: 5.9
Affected Packages10 packages
Also affects: Debian Linux 8.0, Ubuntu Linux 14.04, 16.04, Enterprise Linux 7.0, 8.0
Patches
🔴Vulnerability Details
4OSV▶
linux, linux-lts-xenial, linux-aws, linux-kvm, linux-raspi2, linux-snapdragon vulnerabilities↗2020-07-06
📋Vendor Advisories
4Microsoft▶
There is a use-after-free in kernel versions before 5.5 due to a race condition between the release of ptp_clock and cdev while resource deallocation. When a (high privileged) process allocates a ptp ↗2020-05-12
Debian▶
CVE-2020-10690: linux - There is a use-after-free in kernel versions before 5.5 due to a race condition ...↗2020
Red Hat▶
kernel: use-after-free in cdev_put() when a PTP device is removed while it's chardev is open↗2019-11-25