CVE-2014-8369
kernel: kvm: excessive pages un-pinning in kvm_iommu_map error path
Severity Score
Exploit Likelihood
Affected Versions
Public Exploits
2Exploited in Wild
-Decision
Descriptions
The kvm_iommu_map_pages function in virt/kvm/iommu.c in the Linux kernel through 3.17.2 miscalculates the number of pages during the handling of a mapping failure, which allows guest OS users to cause a denial of service (host OS page unpinning) or possibly have unspecified other impact by leveraging guest OS privileges. NOTE: this vulnerability exists because of an incorrect fix for CVE-2014-3601.
La función kvm_iommu_map_pages en virt/kvm/iommu.c en el kernel de Linux hasta 3.17.2 calcula mal el número de páginas durante el manejo de fallo en el mapeo, lo que permite a usuarios del sistema operativo invitado causar una denegación de servicio ( liberación de página del sistema operativo anfitrión) o posiblemente tener otro impacto no especificado mediante el aprovechamiento de los privilegios del sistema operativo invitado. NOTA: esta vulnerabilidad existe debido a una solución incorrecta para CVE-2014-3601.
It was found that the fix for CVE-2014-3601 was incomplete: the Linux kernel's kvm_iommu_map_pages() function still handled IOMMU mapping failures incorrectly. A privileged user in a guest with an assigned host device could use this flaw to crash the host.
CVSS Scores
SSVC
- Decision:-
Timeline
- 2014-10-21 CVE Reserved
- 2014-11-10 CVE Published
- 2024-08-06 CVE Updated
- 2024-08-06 First Exploit
- 2024-11-08 EPSS Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
CWE
- CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer
CAPEC
References (15)
| URL | Tag | Source |
|---|---|---|
| http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=3d32e4dbe71374a6780eaf51d719d76f9a9bf22f | X_refsource_confirm | |
| http://secunia.com/advisories/62326 | Broken Link | |
| http://secunia.com/advisories/62336 | Broken Link | |
| http://www.securityfocus.com/bid/70747 | Third Party Advisory | |
| http://www.securityfocus.com/bid/70749 | Third Party Advisory |
| URL | Date | SRC |
|---|---|---|
| https://github.com/torvalds/linux/commit/3d32e4dbe71374a6780eaf51d719d76f9a9bf22f | 2024-08-06 | |
| https://lkml.org/lkml/2014/10/24/460 | 2024-08-06 |
| URL | Date | SRC |
|---|---|---|
| http://www.openwall.com/lists/oss-security/2014/10/24/7 | 2023-11-07 | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1156518 | 2015-03-11 |
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" | <= 3.17.2 Search vendor "Linux" for product "Linux Kernel" and version " <= 3.17.2" | - |
Affected
| ||||||
| Debian Search vendor "Debian" | Debian Linux Search vendor "Debian" for product "Debian Linux" | 7.0 Search vendor "Debian" for product "Debian Linux" and version "7.0" | - |
Affected
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| Opensuse Search vendor "Opensuse" | Evergreen Search vendor "Opensuse" for product "Evergreen" | 11.4 Search vendor "Opensuse" for product "Evergreen" and version "11.4" | - |
Affected
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| Suse Search vendor "Suse" | Linux Enterprise Real Time Extension Search vendor "Suse" for product "Linux Enterprise Real Time Extension" | 11 Search vendor "Suse" for product "Linux Enterprise Real Time Extension" and version "11" | sp3 |
Affected
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| Suse Search vendor "Suse" | Suse Linux Enterprise Server Search vendor "Suse" for product "Suse Linux Enterprise Server" | 11 Search vendor "Suse" for product "Suse Linux Enterprise Server" and version "11" | sp2, ltss |
Affected
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