CVE-2020-29374: Race Condition
First published: Sat Nov 28 2020(Updated: )
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.
Credit: cve@mitre.org cve@mitre.org cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linux Kernel | <5.7.3 | |
| Debian GNU/Linux | =9.0 | |
| Debian GNU/Linux | =10.0 | |
| 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 | ||
| All of | ||
| netapp 500f firmware | ||
| netapp 500f | ||
| All of | ||
| netapp a250 firmware | ||
| netapp a250 | ||
| All of | ||
| netapp h410c firmware | ||
| netapp h410c | ||
| NetApp Baseboard Management Controller 500F | ||
| NetApp FAS/AFF Baseboard Management Controller | ||
| NetApp Baseboard Management Controller A250 | ||
| NetApp Baseboard Management Controller A250 Firmware | ||
| netapp baseboard management controller h410c firmware | ||
| netapp baseboard management controller h410c | ||
| debian/linux | 5.10.223-1 5.10.226-1 6.1.123-1 6.1.128-1 6.12.12-1 6.12.13-1 | |
| Android |
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Reference Links
- https://bugs.chromium.org/p/project-zero/issues/detail?id=2045
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.7.3
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=17839856fd588f4ab6b789f482ed3ffd7c403e1f
- https://security.netapp.com/advisory/ntap-20210115-0002/
- http://packetstormsecurity.com/files/162117/Kernel-Live-Patch-Security-Notice-LSN-0075-1.html
- https://lists.debian.org/debian-lts-announce/2021/06/msg00020.html
- https://lists.debian.org/debian-lts-announce/2021/06/msg00019.html
- https://www.debian.org/security/2022/dsa-5096
- https://lists.debian.org/debian-lts-announce/2022/03/msg00012.html
- https://launchpad.net/bugs/cve/CVE-2020-29374
- https://chromereleases.googleblog.com/2023/08/stable-channel-update-for-chromeos_25.html (Advisory)
- https://git.kernel.org/linus/17839856fd588f4ab6b789f482ed3ffd7c403e1f
- https://security-tracker.debian.org/tracker/CVE-2020-29374
- https://android.googlesource.com/kernel/common/+/a308c71bf1e6e
- https://android.googlesource.com/kernel/common/+/52d1e606ee733
- https://android.googlesource.com/kernel/common/+/1a0cf26323c8
- https://android.googlesource.com/kernel/common/+/09854ba94c6a
- https://android.googlesource.com/kernel/common/+/be068f2903
- https://android.googlesource.com/kernel/common/+/17839856fd588
- https://source.android.com/docs/security/bulletin/2023-08-01 (Advisory)
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-29374
- https://nvd.nist.gov/vuln/detail/CVE-2020-29374
- https://ubuntu.com/security/CVE-2020-29374
Peer vulnerabilities
(Found alongside the following vulnerabilities)
- CVE-2023-4369
- CVE-2023-20593
- CVE-2023-4211
- CVE-2023-4128
- CVE-2023-4147
- CVE-2023-3390
- CVE-2023-32804
- CVE-2022-40982
- CVE-2023-2312
- CVE-2023-4349
- CVE-2023-4350
- CVE-2023-4351
- CVE-2023-4352
- CVE-2023-4353
- CVE-2023-4354
- CVE-2023-4355
- CVE-2023-4356
- CVE-2023-4357
- CVE-2023-4358
- CVE-2023-4359
- CVE-2023-4360
- CVE-2023-4361
- CVE-2023-4362
- CVE-2023-4363
- CVE-2023-4364
- CVE-2023-4365
- CVE-2023-4366
- CVE-2023-4367
- CVE-2023-4368
- CVE-2023-21264
Frequently Asked Questions
What is the severity of CVE-2020-29374?
CVE-2020-29374 has been classified with a high severity due to potential unauthorized write access in the Linux kernel.
How do I fix CVE-2020-29374?
To remediate CVE-2020-29374, update your Linux kernel to version 5.7.3 or later.
Which versions of the Linux kernel are affected by CVE-2020-29374?
CVE-2020-29374 affects Linux kernel versions before 5.7.3.
What systems are impacted by CVE-2020-29374?
CVE-2020-29374 impacts various operating systems including older versions of Debian and Android that utilize the vulnerable Linux kernel.
What are the potential consequences of CVE-2020-29374 if exploited?
Exploitation of CVE-2020-29374 could allow an attacker to gain unintended write access to memory pages, leading to data corruption or system compromise.
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