CVE-2020-29374

Name: CVE-2020-29374
Creator: NVD / NIST
Published: 2020-11-28T07:15:11.96+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

LOWCVSS 3.6/10EPSS 0.40%

Last modified Jun 17, 2026

CVE-2020-29374 is a low-severity vulnerability rated 3.6/10 on the CVSS scale. 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.. EPSS estimates a 0.40% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

3.6/10

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N

EPSS Probability

0.40%

31.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Linux	Linux Kernel	< 5.7.3
Debian	Debian Linux	9.0
Debian	Debian Linux	10.0
Netapp	500f Firmware	All versions
Netapp	A250 Firmware	All versions
Netapp	H410c Firmware	All versions
Netapp	Solidfire \& Hci Management Node	All versions
Netapp	Solidfire \& Hci Storage Node	All versions
Netapp	Hci Compute Node Bios	All versions

References

http://packetstormsecurity.com/files/162117/Kernel-Live-Patch-Security-Notice-LSN-0075-1.htmlExploit, Third Party Advisory, VDB Entry
https://bugs.chromium.org/p/project-zero/issues/detail?id=2045Exploit, Issue Tracking, Third Party Advisory
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.7.3Release Notes, Third Party Advisory, Vendor Advisory
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=17839856fd588f4ab6b789f482ed3ffd7c403e1fPatch, Vendor Advisory
https://lists.debian.org/debian-lts-announce/2021/06/msg00019.htmlMailing List, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2021/06/msg00020.htmlMailing List, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2022/03/msg00012.htmlMailing List, Third 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-LSN-0075-1.htmlExploit, Third Party Advisory, VDB Entry
https://bugs.chromium.org/p/project-zero/issues/detail?id=2045Exploit, Issue Tracking, Third Party Advisory
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.7.3Release Notes, Third Party Advisory, Vendor Advisory
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=17839856fd588f4ab6b789f482ed3ffd7c403e1fPatch, Vendor Advisory
https://lists.debian.org/debian-lts-announce/2021/06/msg00019.htmlMailing List, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2021/06/msg00020.htmlMailing List, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2022/03/msg00012.htmlMailing List, Third Party Advisory
https://security.netapp.com/advisory/ntap-20210115-0002/Third Party Advisory
https://www.debian.org/security/2022/dsa-5096Third Party Advisory

Timeline

Published: Nov 28, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-29374?

How severe is CVE-2020-29374?

CVE-2020-29374 has a CVSS score of 3.6/10 (LOW severity). The EPSS model estimates a 0.40% probability of exploitation in the next 30 days.

How do I fix CVE-2020-29374?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2020-29374?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST