Vulnerability Details : CVE-2020-29374
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.
Products affected by CVE-2020-29374
- cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
- cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
- cpe:2.3:a:netapp:solidfire_\&_hci_management_node:-:*:*:*:*:*:*:*
- cpe:2.3:o:netapp:h410c_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:netapp:hci_compute_node_bios:-:*:*:*:*:*:*:*
- cpe:2.3:a:netapp:solidfire_\&_hci_storage_node:-:*:*:*:*:*:*:*
- cpe:2.3:o:netapp:a250_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:netapp:500f_firmware:-:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2020-29374
0.07%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 32 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2020-29374
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
3.3
|
LOW | AV:L/AC:M/Au:N/C:P/I:P/A:N |
3.4
|
4.9
|
NIST | |
|
3.6
|
LOW | CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N |
1.0
|
2.5
|
NIST |
CWE ids for CVE-2020-29374
-
The product contains a concurrent code sequence that requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence operating concurrently.Assigned by: nvd@nist.gov (Primary)
-
The product performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check.Assigned by: nvd@nist.gov (Primary)
References for CVE-2020-29374
-
http://packetstormsecurity.com/files/162117/Kernel-Live-Patch-Security-Notice-LSN-0075-1.html
Kernel Live Patch Security Notice LSN-0075-1 ≈ Packet StormExploit;Third Party Advisory;VDB Entry
-
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=17839856fd588f4ab6b789f482ed3ffd7c403e1f
kernel/git/torvalds/linux.git - Linux kernel source treePatch;Vendor Advisory
-
https://www.debian.org/security/2022/dsa-5096
Debian -- Security Information -- DSA-5096-1 linuxThird Party Advisory
-
https://lists.debian.org/debian-lts-announce/2022/03/msg00012.html
[SECURITY] [DLA 2941-1] linux-4.19 security updateMailing List;Third Party Advisory
-
https://lists.debian.org/debian-lts-announce/2021/06/msg00019.html
[SECURITY] [DLA 2690-1] linux-4.19 security updateMailing List;Third Party Advisory
-
https://lists.debian.org/debian-lts-announce/2021/06/msg00020.html
[SECURITY] [DLA 2689-1] linux security updateMailing List;Third Party Advisory
-
https://security.netapp.com/advisory/ntap-20210115-0002/
CVE-2020-29374 Linux Kernel Vulnerability in NetApp Products | NetApp Product SecurityThird Party Advisory
-
https://bugs.chromium.org/p/project-zero/issues/detail?id=2045
2045 - Linux: CoW can wrongly grant write access (because of pinned references or THP bug) - project-zeroExploit;Issue Tracking;Third Party Advisory
-
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.7.3
Release Notes;Third Party Advisory;Vendor Advisory
Jump to