Vulnerability Name:

CVE-2014-8480 (CCN-97750)

Assigned:2014-10-24
Published:2014-10-24
Updated:2016-11-28
Summary:The instruction decoder in arch/x86/kvm/emulate.c in the KVM subsystem in the Linux kernel before 3.18-rc2 lacks intended decoder-table flags for certain RIP-relative instructions, which allows guest OS users to cause a denial of service (NULL pointer dereference and host OS crash) via a crafted application.
CVSS v3 Severity:7.5 High (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): High
CVSS v2 Severity:4.9 Medium (CVSS v2 Vector: AV:L/AC:L/Au:N/C:N/I:N/A:C)
3.7 Low (Temporal CVSS v2 Vector: AV:L/AC:L/Au:N/C:N/I:N/A:C/E:U/RL:OF/RC:C)
Exploitability Metrics:Access Vector (AV): Local
Access Complexity (AC): Low
Authentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Complete
7.8 High (CCN CVSS v2 Vector: AV:N/AC:L/Au:N/C:N/I:N/A:C)
5.8 Medium (CCN Temporal CVSS v2 Vector: AV:N/AC:L/Au:N/C:N/I:N/A:C/E:U/RL:OF/RC:C)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Athentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Complete
Vulnerability Type:CWE-399
Vulnerability Consequences:Denial of Service
References:Source: MITRE
Type: CNA
CVE-2014-8480

Source: CONFIRM
Type: Exploit
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=3f6f1480d86bf9fc16c160d803ab1d006e3058d5

Source: CCN
Type: oss-security Mailing List, Fri, 24 Oct 2014 03:48:32 -0400 (EDT)
Re: CVE Request: Linux 3.17 guest-triggerable KVM OOPS

Source: MLIST
Type: UNKNOWN
[kvm] 20141013 [PATCH 0/2] KVM: x86: Fixing clflush/hint_nop/prefetch

Source: CCN
Type: The Linux Kernel Archives Web site
The Linux Kernel Archives

Source: MLIST
Type: Exploit
[oss-security] 20141023 CVE Request: Linux 3.17 guest-triggerable KVM OOPS

Source: BID
Type: UNKNOWN
70710

Source: CCN
Type: BID-70710
Linux Kernel KVM CVE-2014-8480 Denial of Service Vulnerability

Source: CONFIRM
Type: UNKNOWN
https://bugzilla.redhat.com/show_bug.cgi?id=1156615

Source: XF
Type: UNKNOWN
linux-kernel-cve20148480-dos(97750)

Source: CONFIRM
Type: Exploit
https://github.com/torvalds/linux/commit/3f6f1480d86bf9fc16c160d803ab1d006e3058d5

Source: CCN
Type: WhiteSource Vulnerability Database
CVE-2014-8480

Vulnerable Configuration:Configuration 1:
  • cpe:/o:linux:linux_kernel:*:rc1:*:*:*:*:*:* (Version <= 3.18)

    • Configuration CCN 1:
  • cpe:/o:linux:linux_kernel:-:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    Oval Definitions
    Definition IDClassTitleLast Modified
    oval:com.ubuntu.precise:def:20148480000
    V
    		CVE-2014-8480 on Ubuntu 12.04 LTS (precise) - medium.
    2014-11-10
    oval:com.ubuntu.trusty:def:20148480000
    V
    		CVE-2014-8480 on Ubuntu 14.04 LTS (trusty) - medium.
    2014-11-10
    BACK
    linux linux kernel * rc1
    linux linux kernel -