CVE-2020-29374

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Summary

CVECVE-2020-29374
StatePUBLISHED
Assignermitre
Source PriorityCVE Program / NVD first with legacy fallback
Published2020-11-28 07:15:11 UTC
Updated2026-10-08 21:17:27 UTC
DescriptionAn 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.

Risk And Classification

Primary CVSS: v3.1 3.6 LOW from [email protected]

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

EPSS: 0.004070000 probability, percentile 0.330000000 (date 2026-10-10)

Problem Types: CWE-362 | CWE-863 | n/a

VersionSourceTypeScoreSeverityVector
3.1[email protected]Primary3.6LOWCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N
2.0[email protected]Primary3.3AV:L/AC:M/Au:N/C:P/I:P/A:N

CVSS v3.1 Breakdown

Attack Vector
Local
Attack Complexity
High
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
Low
Availability
None

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

CVSS v2.0 Breakdown

Access Vector
Local
Access Complexity
Medium
Authentication
None
Confidentiality
Partial
Integrity
Partial
Availability
None

AV:L/AC:M/Au:N/C:P/I:P/A:N

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Debian Debian Linux 10.0 All All All
Operating System Debian Debian Linux 9.0 All All All
Operating System Linux Linux Kernel All All All All
Hardware Netapp 500f - All All All
Operating System Netapp 500f Firmware - All All All
Hardware Netapp A250 - All All All
Operating System Netapp A250 Firmware - All All All
Hardware Netapp H410c - All All All
Operating System Netapp H410c Firmware - All All All
Operating System Netapp Hci Compute Node Bios - All All All
Application Netapp Solidfire Hci Management Node - All All All
Application Netapp Solidfire Hci Storage Node - All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Na N/a affected n/a Not specified

References

ReferenceSourceLinkTags
Kernel Live Patch Security Notice LSN-0075-1 ≈ Packet Storm af854a3a-2127-422b-91ae-364da2661108 packetstormsecurity.com Exploit, Third Party Advisory, VDB Entry
Debian -- Security Information -- DSA-5096-1 linux af854a3a-2127-422b-91ae-364da2661108 www.debian.org Third Party Advisory
kernel/git/torvalds/linux.git - Linux kernel source tree af854a3a-2127-422b-91ae-364da2661108 git.kernel.org Patch, Vendor Advisory
CVE-2020-29374 Linux Kernel Vulnerability in NetApp Products | NetApp Product Security af854a3a-2127-422b-91ae-364da2661108 security.netapp.com Third Party Advisory
2045 - project-zero - Project Zero - Monorail af854a3a-2127-422b-91ae-364da2661108 bugs.chromium.org Exploit, Issue Tracking, Third Party Advisory
cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.7.3 af854a3a-2127-422b-91ae-364da2661108 cdn.kernel.org Release Notes, Third Party Advisory, Vendor Advisory
[SECURITY] [DLA 2941-1] linux-4.19 security update af854a3a-2127-422b-91ae-364da2661108 lists.debian.org Mailing List, Third Party Advisory
[SECURITY] [DLA 2689-1] linux security update af854a3a-2127-422b-91ae-364da2661108 lists.debian.org Mailing List, Third Party Advisory
[SECURITY] [DLA 2690-1] linux-4.19 security update af854a3a-2127-422b-91ae-364da2661108 lists.debian.org Mailing List, Third Party Advisory
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Legacy QID Mappings

  • 174764 SUSE Enterprise Linux Security update for the Linux Kernel (SUSE-SU-2021:0738-1)
  • 174768 SUSE Enterprise Linux Security update for the Linux Kernel (SUSE-SU-2021:0735-1)
  • 174770 SUSE Enterprise Linux Security update for the Linux Kernel (SUSE-SU-2021:0741-1)
  • 174772 SUSE Enterprise Linux Security update for the Linux Kernel (SUSE-SU-2021:0737-1)
  • 174774 SUSE Enterprise Linux Security update for the Linux Kernel (SUSE-SU-2021:0740-1)
  • 174897 SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2021:1175-1)
  • 174916 SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2021:1210-1)
  • 178679 Debian Security Update for linux-4.19 (DLA 2690-1)
  • 178680 Debian Security Update for linux (DLA 2689-1)
  • 179117 Debian Security Update for linux (DSA 5096-1)
  • 179119 Debian Security Update for linux-4.19 (DLA 2941-1)
  • 352366 Amazon Linux Security Advisory for kernel: ALAS-2021-1503
  • 352375 Amazon Linux Security Advisory for kernel: ALAS2-2021-1636
  • 353242 Amazon Linux Security Advisory for kernel : ALAC2012-2022-036
  • 353243 Amazon Linux Security Advisory for kmod-mlx5 : ALAC2012-2022-037
  • 353244 Amazon Linux Security Advisory for kmod-sfc : ALAC2012-2022-038
  • 610500 Google Android Devices August 2023 Security Patch Missing
  • 610519 Google Android November 2023 Security Patch Missing for Samsung
  • 750324 OpenSUSE Security Update for the Linux Kernel (openSUSE-SU-2021:0393-1)
  • 900040 CBL-Mariner Linux Security Update for kernel 5.4.91
  • 903215 Common Base Linux Mariner (CBL-Mariner) Security Update for kernel (3623)
  • 906126 Common Base Linux Mariner (CBL-Mariner) Security Update for kernel (3623-1)

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