Vulnerability Description
An issue was discovered in mm/mmap.c in the Linux kernel before 5.7.11. There is a race condition between certain expand functions (expand_downwards and expand_upwards) and page-table free operations from an munmap call, aka CID-246c320a8cfe.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | >= 4.20, < 5.4.54 |
| Netapp | Hci Management Node | - |
| Netapp | Solidfire | - |
| Netapp | Hci Compute Node | - |
| Netapp | Hci Storage Node | - |
Related Weaknesses (CWE)
References
- http://www.openwall.com/lists/oss-security/2021/02/10/6Mailing ListPatchThird Party Advisory
- http://www.openwall.com/lists/oss-security/2021/02/19/8Mailing ListPatchThird Party Advisory
- https://bugs.chromium.org/p/project-zero/issues/detail?id=2056ExploitIssue TrackingPatch
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.7.11Release NotesVendor Advisory
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=24PatchVendor Advisory
- https://security.netapp.com/advisory/ntap-20210115-0001/Third Party Advisory
- http://www.openwall.com/lists/oss-security/2021/02/10/6Mailing ListPatchThird Party Advisory
- http://www.openwall.com/lists/oss-security/2021/02/19/8Mailing ListPatchThird Party Advisory
- https://bugs.chromium.org/p/project-zero/issues/detail?id=2056ExploitIssue TrackingPatch
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.7.11Release NotesVendor Advisory
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=24PatchVendor Advisory
- https://security.netapp.com/advisory/ntap-20210115-0001/Third Party Advisory
FAQ
What is CVE-2020-29369?
CVE-2020-29369 is a vulnerability with a CVSS score of 7.0 (HIGH). An issue was discovered in mm/mmap.c in the Linux kernel before 5.7.11. There is a race condition between certain expand functions (expand_downwards and expand_upwards) and page-table free operations ...
How severe is CVE-2020-29369?
CVE-2020-29369 has been rated HIGH with a CVSS base score of 7.0/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2020-29369?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel, Netapp Hci Management Node, Netapp Solidfire, Netapp Hci Compute Node, Netapp Hci Storage Node.