CVE-2020-29374CWE-362CWE-863broken-access-control

CVE-2020-29374

Low · published November 28, 2020

CVSS v3.1
3.6
EPSS
0%
Percentile
33.9
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
3.6 · LOW
Vector
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N
CVSS v4.0
Not supplied
EPSS
0.00407 · 33.9th percentile
Weaknesses
CWE-362 · Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition'); CWE-863 · Incorrect Authorization
Published
2020-11-28T12:15Z
Affected products (9)
ProductVersionsFixed in
linux/linux_kernel< 5.7.35.7.3
debian/debian_linuxall versions—
debian/debian_linuxall versions—
netapp/500f_firmwareall versions—
netapp/a250_firmwareall versions—
netapp/h410c_firmwareall versions—
netapp/solidfire_\&_hci_management_nodeall versions—
netapp/solidfire_\&_hci_storage_nodeall versions—
netapp/hci_compute_node_biosall versions—
References (18)
http://packetstormsecurity.com/files/162117/Kernel-Live-Patch-Security-Notice-LSN-0075-1.html · [email protected]https://bugs.chromium.org/p/project-zero/issues/detail?id=2045 · [email protected]https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.7.3 · [email protected]https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=17839856fd588f4ab6b789f482ed3ffd7c403e1f · [email protected]https://lists.debian.org/debian-lts-announce/2021/06/msg00019.html · [email protected]https://lists.debian.org/debian-lts-announce/2021/06/msg00020.html · [email protected]https://lists.debian.org/debian-lts-announce/2022/03/msg00012.html · [email protected]https://security.netapp.com/advisory/ntap-20210115-0002/ · [email protected]https://www.debian.org/security/2022/dsa-5096 · [email protected]http://packetstormsecurity.com/files/162117/Kernel-Live-Patch-Security-Notice-LSN-0075-1.html · af854a3a-2127-422b-91ae-364da2661108https://bugs.chromium.org/p/project-zero/issues/detail?id=2045 · af854a3a-2127-422b-91ae-364da2661108https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.7.3 · af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=17839856fd588f4ab6b789f482ed3ffd7c403e1f · af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2021/06/msg00019.html · af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2021/06/msg00020.html · af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2022/03/msg00012.html · af854a3a-2127-422b-91ae-364da2661108https://security.netapp.com/advisory/ntap-20210115-0002/ · af854a3a-2127-422b-91ae-364da2661108https://www.debian.org/security/2022/dsa-5096 · af854a3a-2127-422b-91ae-364da2661108
EPSS history
Timeline
  • 28 NOV 06:18Z
    An issue was discovered in the Linux kernel before 5.7.3, related to mm/gup.c and mm/huge_memory.c
    cvelistv5