Vulnerability 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) which is pointed to by the inode.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | < 5.5 |
| Redhat | Enterprise Linux | 7.0 |
| Debian | Debian Linux | 8.0 |
| Canonical | Ubuntu Linux | 14.04 |
| Opensuse | Leap | 15.1 |
| Netapp | Active Iq Unified Manager | - |
| Netapp | Element Software | - |
| Netapp | Hci Management Node | - |
| Netapp | Solidfire | - |
| Netapp | Steelstore Cloud Integrated Storage | - |
| Netapp | Hci Compute Node | - |
| Netapp | H300S Firmware | - |
| Netapp | H300S | - |
| Netapp | H500S Firmware | - |
| Netapp | H500S | - |
| Netapp | H700S Firmware | - |
| Netapp | H700S | - |
| Netapp | H300E Firmware | - |
| Netapp | H300E | - |
| Netapp | H500E Firmware | - |
Related Weaknesses (CWE)
References
- http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00022.htmlMailing ListThird Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-10690Issue TrackingPatchThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2020/06/msg00011.htmlMailing ListThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2020/06/msg00013.htmlMailing ListThird Party Advisory
- https://security.netapp.com/advisory/ntap-20200608-0001/Third Party Advisory
- https://usn.ubuntu.com/4419-1/Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00022.htmlMailing ListThird Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-10690Issue TrackingPatchThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2020/06/msg00011.htmlMailing ListThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2020/06/msg00013.htmlMailing ListThird Party Advisory
- https://security.netapp.com/advisory/ntap-20200608-0001/Third Party Advisory
- https://usn.ubuntu.com/4419-1/Third Party Advisory
FAQ
What is CVE-2020-10690?
CVE-2020-10690 is a vulnerability with a CVSS score of 6.5 (MEDIUM). 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 ...
How severe is CVE-2020-10690?
CVE-2020-10690 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2020-10690?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel, Redhat Enterprise Linux, Debian Debian Linux, Canonical Ubuntu Linux, Opensuse Leap.