CVE-2017-7889
kernel: mm subsystem does not properly enforce the CONFIG_STRICT_DEVMEM protection mechanism
Severity Score
Exploit Likelihood
Affected Versions
Public Exploits
0Exploited in Wild
-Decision
Descriptions
The mm subsystem in the Linux kernel through 3.2 does not properly enforce the CONFIG_STRICT_DEVMEM protection mechanism, which allows local users to read or write to kernel memory locations in the first megabyte (and bypass slab-allocation access restrictions) via an application that opens the /dev/mem file, related to arch/x86/mm/init.c and drivers/char/mem.c.
El subsistema mm en el kernel de Linux hasta la versión 3.2 no aplica adecuadamente el mecanismo de protección CONFIG_STRICT_DEVMEM, lo que permite a usuarios locales leer o escribir en ubicaciones de la memoria del kernel en el primer megabyte (y eludir restricciones de acceso de asignación de slab) a través de una aplicación que abre el archivo /dev/mem, relacionado con arch/x86/mm/init.c y drivers/char/mem.c
The mm subsystem in the Linux kernel through 4.10.10 does not properly enforce the CONFIG_STRICT_DEVMEM protection mechanism, which allows local users to read or write to kernel memory locations in the first megabyte (and bypass slab-allocation access restrictions) via an application that opens the /dev/mem file, related to arch/x86/mm/init.c and drivers/char/mem.c.
CVSS Scores
SSVC
- Decision:-
Timeline
- 2017-04-16 CVE Reserved
- 2017-04-17 CVE Published
- 2023-03-08 EPSS Updated
- 2024-08-05 CVE Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-391: Unchecked Error Condition
- CWE-732: Incorrect Permission Assignment for Critical Resource
CAPEC
References (14)
| URL | Tag | Source |
|---|---|---|
| http://www.securityfocus.com/bid/97690 | Third Party Advisory | |
| https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git/commit/?id=b8f254aa17f720053054c4ecff3920973a83b9d6 | Third Party Advisory |
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|---|---|
| http://www.debian.org/security/2017/dsa-3945 | 2023-02-14 | |
| https://access.redhat.com/errata/RHSA-2017:1842 | 2023-02-14 | |
| https://access.redhat.com/errata/RHSA-2017:2077 | 2023-02-14 | |
| https://access.redhat.com/errata/RHSA-2017:2669 | 2023-02-14 | |
| https://access.redhat.com/errata/RHSA-2018:1854 | 2023-02-14 | |
| https://usn.ubuntu.com/3583-1 | 2023-02-14 | |
| https://usn.ubuntu.com/3583-2 | 2023-02-14 | |
| https://access.redhat.com/security/cve/CVE-2017-7889 | 2018-06-19 | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1444493 | 2018-06-19 |
Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | < 3.2.91 Search vendor "Linux" for product "Linux Kernel" and version " < 3.2.91" | - |
Affected
| ||||||
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 3.3 < 3.10.107 Search vendor "Linux" for product "Linux Kernel" and version " >= 3.3 < 3.10.107" | - |
Affected
| ||||||
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 3.11 < 3.12.74 Search vendor "Linux" for product "Linux Kernel" and version " >= 3.11 < 3.12.74" | - |
Affected
| ||||||
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 3.13 < 3.16.46 Search vendor "Linux" for product "Linux Kernel" and version " >= 3.13 < 3.16.46" | - |
Affected
| ||||||
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 3.17 < 3.18.50 Search vendor "Linux" for product "Linux Kernel" and version " >= 3.17 < 3.18.50" | - |
Affected
| ||||||
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 3.19 < 4.1.41 Search vendor "Linux" for product "Linux Kernel" and version " >= 3.19 < 4.1.41" | - |
Affected
| ||||||
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 4.2 < 4.4.63 Search vendor "Linux" for product "Linux Kernel" and version " >= 4.2 < 4.4.63" | - |
Affected
| ||||||
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 4.5 < 4.9.24 Search vendor "Linux" for product "Linux Kernel" and version " >= 4.5 < 4.9.24" | - |
Affected
| ||||||
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 4.10 < 4.10.12 Search vendor "Linux" for product "Linux Kernel" and version " >= 4.10 < 4.10.12" | - |
Affected
| ||||||
| Debian Search vendor "Debian" | Debian Linux Search vendor "Debian" for product "Debian Linux" | 8.0 Search vendor "Debian" for product "Debian Linux" and version "8.0" | - |
Affected
| ||||||
| Canonical Search vendor "Canonical" | Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux" | 12.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "12.04" | - |
Affected
| ||||||
| Canonical Search vendor "Canonical" | Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux" | 14.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "14.04" | esm |
Affected
| ||||||