Vulnerability Description
An issue was discovered in the Linux kernel before 5.7.3, related to mm/gup.c and mm/huge_memory.c. The get_user_pages (aka gup) implementation, when used for a copy-on-write page, does not properly consider the semantics of read operations and therefore can grant unintended write access, aka CID-17839856fd58.
CVSS Score
LOW
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | < 5.7.3 |
| Debian | Debian Linux | 9.0 |
| Netapp | 500F Firmware | - |
| Netapp | 500F | - |
| Netapp | A250 Firmware | - |
| Netapp | A250 | - |
| Netapp | H410C Firmware | - |
| Netapp | H410C | - |
| Netapp | Solidfire \& Hci Management Node | - |
| Netapp | Solidfire \& Hci Storage Node | - |
| Netapp | Hci Compute Node Bios | - |
Related Weaknesses (CWE)
References
- http://packetstormsecurity.com/files/162117/Kernel-Live-Patch-Security-Notice-LSExploitThird Party AdvisoryVDB Entry
- https://bugs.chromium.org/p/project-zero/issues/detail?id=2045ExploitIssue TrackingThird Party Advisory
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.7.3Release NotesThird Party AdvisoryVendor Advisory
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=17PatchVendor Advisory
- https://lists.debian.org/debian-lts-announce/2021/06/msg00019.htmlMailing ListThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2021/06/msg00020.htmlMailing ListThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2022/03/msg00012.htmlMailing ListThird Party Advisory
- https://security.netapp.com/advisory/ntap-20210115-0002/Third Party Advisory
- https://www.debian.org/security/2022/dsa-5096Third Party Advisory
- http://packetstormsecurity.com/files/162117/Kernel-Live-Patch-Security-Notice-LSExploitThird Party AdvisoryVDB Entry
- https://bugs.chromium.org/p/project-zero/issues/detail?id=2045ExploitIssue TrackingThird Party Advisory
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.7.3Release NotesThird Party AdvisoryVendor Advisory
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=17PatchVendor Advisory
- https://lists.debian.org/debian-lts-announce/2021/06/msg00019.htmlMailing ListThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2021/06/msg00020.htmlMailing ListThird Party Advisory
FAQ
What is CVE-2020-29374?
CVE-2020-29374 is a vulnerability with a CVSS score of 3.6 (LOW). An issue was discovered in the Linux kernel before 5.7.3, related to mm/gup.c and mm/huge_memory.c. The get_user_pages (aka gup) implementation, when used for a copy-on-write page, does not properly c...
How severe is CVE-2020-29374?
CVE-2020-29374 has been rated LOW with a CVSS base score of 3.6/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2020-29374?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel, Debian Debian Linux, Netapp 500F Firmware, Netapp 500F, Netapp A250 Firmware.