Vulnerability Description
A flaw was found in the Linux kernel’s implementation of MIDI, where an attacker with a local account and the permissions to issue ioctl commands to midi devices could trigger a use-after-free issue. A write to this specific memory while freed and before use causes the flow of execution to change and possibly allow for memory corruption or privilege escalation. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | < 4.4.224 |
| Redhat | Openshift Container Platform | 4.4 |
| Redhat | Enterprise Linux | 7.0 |
| Redhat | Enterprise Mrg | 2.0 |
| Netapp | Cloud Backup | - |
| Netapp | Solidfire Baseboard Management Controller | - |
Related Weaknesses (CWE)
References
- http://www.openwall.com/lists/oss-security/2020/12/03/1Mailing List
- https://bugzilla.redhat.com/show_bug.cgi?id=1900933Issue TrackingPatchThird Party Advisory
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=c1PatchVendor Advisory
- https://security.netapp.com/advisory/ntap-20210122-0002/Third Party Advisory
- http://www.openwall.com/lists/oss-security/2020/12/03/1Mailing List
- https://bugzilla.redhat.com/show_bug.cgi?id=1900933Issue TrackingPatchThird Party Advisory
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=c1PatchVendor Advisory
- https://security.netapp.com/advisory/ntap-20210122-0002/Third Party Advisory
FAQ
What is CVE-2020-27786?
CVE-2020-27786 is a vulnerability with a CVSS score of 7.8 (HIGH). A flaw was found in the Linux kernel’s implementation of MIDI, where an attacker with a local account and the permissions to issue ioctl commands to midi devices could trigger a use-after-free issue. ...
How severe is CVE-2020-27786?
CVE-2020-27786 has been rated HIGH with a CVSS base score of 7.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2020-27786?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel, Redhat Openshift Container Platform, Redhat Enterprise Linux, Redhat Enterprise Mrg, Netapp Cloud Backup.