CVE-2014-4171
Kernel: mm/shmem: denial of service
Severity Score
Exploit Likelihood
Affected Versions
Public Exploits
0Exploited in Wild
-Decision
Descriptions
mm/shmem.c in the Linux kernel through 3.15.1 does not properly implement the interaction between range notification and hole punching, which allows local users to cause a denial of service (i_mutex hold) by using the mmap system call to access a hole, as demonstrated by interfering with intended shmem activity by blocking completion of (1) an MADV_REMOVE madvise call or (2) an FALLOC_FL_PUNCH_HOLE fallocate call.
mm/shmem.c en el kernel de Linux hasta 3.15.1 no implementa debidamente la interacción entre la notificación del rango y la creación de agujeros, lo que permite a usuarios locales causar una denegación de servicio (apropiación del i_mutex) mediante la llamada de sistema mmap para acceder a un agujero, tal y como fue demostrado mediante la interferencia con la actividad shmem intencionada a través del bloqueo del completado de (1) una llamada MADV_REMOVE madvise o (2) una llamada FALLOC_FL_PUNCH_HOLE fallocate.
A race condition flaw was found in the way the Linux kernel's mmap(2), madvise(2), and fallocate(2) system calls interacted with each other while operating on virtual memory file system files. A local user could use this flaw to cause a denial of service.
CVSS Scores
SSVC
- Decision:-
Timeline
- 2014-06-17 CVE Reserved
- 2014-06-23 CVE Published
- 2023-03-08 EPSS Updated
- 2024-08-06 CVE Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
CAPEC
References (15)
| URL | Tag | Source |
|---|---|---|
| http://marc.info/?l=linux-mm-commits&m=140303745420549&w=2 | Mailing List | |
| http://ozlabs.org/~akpm/mmots/broken-out/shmem-fix-faulting-into-a-hole-while-its-punched.patch | Third Party Advisory | |
| http://secunia.com/advisories/59777 | Third Party Advisory | |
| http://secunia.com/advisories/60564 | Third Party Advisory | |
| http://www.openwall.com/lists/oss-security/2014/06/18/11 | Mailing List |
|
| http://www.securityfocus.com/bid/68157 | Third Party Advisory | |
| http://www.securitytracker.com/id/1030450 | Third Party Advisory |
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|---|---|
| http://lists.opensuse.org/opensuse-security-announce/2014-10/msg00006.html | 2018-12-18 | |
| http://lists.opensuse.org/opensuse-security-announce/2014-10/msg00007.html | 2018-12-18 | |
| http://rhn.redhat.com/errata/RHSA-2014-1318.html | 2018-12-18 | |
| http://rhn.redhat.com/errata/RHSA-2015-0102.html | 2018-12-18 | |
| http://www.ubuntu.com/usn/USN-2334-1 | 2018-12-18 | |
| http://www.ubuntu.com/usn/USN-2335-1 | 2018-12-18 | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1111180 | 2015-01-28 | |
| https://access.redhat.com/security/cve/CVE-2014-4171 | 2015-01-28 |
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" | <= 3.15.1 Search vendor "Linux" for product "Linux Kernel" and version " <= 3.15.1" | - |
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" | lts |
Affected
| ||||||