Vulnerability Details : CVE-2015-4692
The kvm_apic_has_events function in arch/x86/kvm/lapic.h in the Linux kernel through 4.1.3 allows local users to cause a denial of service (NULL pointer dereference and system crash) or possibly have unspecified other impact by leveraging /dev/kvm access for an ioctl call.
Vulnerability category: Memory CorruptionDenial of service
Products affected by CVE-2015-4692
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Threat overview for CVE-2015-4692
Top countries where our scanners detected CVE-2015-4692
Top open port discovered on systems with this issue
80
IPs affected by CVE-2015-4692 32,505
Threat actors abusing to this issue?
Yes
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Exploit prediction scoring system (EPSS) score for CVE-2015-4692
0.04%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 8 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2015-4692
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
4.9
|
MEDIUM | AV:L/AC:L/Au:N/C:N/I:N/A:C |
3.9
|
6.9
|
NIST |
References for CVE-2015-4692
-
http://lists.fedoraproject.org/pipermail/package-announce/2015-June/160829.html
[SECURITY] Fedora 22 Update: kernel-4.0.6-300.fc22
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http://www.securityfocus.com/bid/75142
Linux Kernel KVM 'kvm_apic_has_events()' Function Denial of Service Vulnerability
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http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=ce40cd3fc7fa40a6119e5fe6c0f2bc0eb4541009
kernel/git/torvalds/linux.git - Linux kernel source tree
-
http://www.ubuntu.com/usn/USN-2680-1
USN-2680-1: Linux kernel (Trusty HWE) vulnerabilities | Ubuntu security notices
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https://github.com/torvalds/linux/commit/ce40cd3fc7fa40a6119e5fe6c0f2bc0eb4541009
kvm: x86: fix kvm_apic_has_events to check for NULL pointer · torvalds/linux@ce40cd3 · GitHub
-
http://lists.opensuse.org/opensuse-security-announce/2015-07/msg00049.html
[security-announce] SUSE-SU-2015:1324-1: important: Security update for
-
http://www.ubuntu.com/usn/USN-2683-1
USN-2683-1: Linux kernel (Vivid HWE) vulnerabilities | Ubuntu security notices
-
http://lists.opensuse.org/opensuse-security-announce/2015-08/msg00011.html
[security-announce] openSUSE-SU-2015:1382-1: important: Security update
-
http://www.debian.org/security/2015/dsa-3329
Debian -- Security Information -- DSA-3329-1 linux
-
http://lists.fedoraproject.org/pipermail/package-announce/2015-June/161144.html
[SECURITY] Fedora 21 Update: kernel-4.0.6-200.fc21
-
http://www.ubuntu.com/usn/USN-2684-1
USN-2684-1: Linux kernel vulnerabilities | Ubuntu security notices
-
http://www.ubuntu.com/usn/USN-2681-1
USN-2681-1: Linux kernel vulnerabilities | Ubuntu security notices
-
http://www.openwall.com/lists/oss-security/2015/06/21/1
oss-security - Re: CVE request -- Linux kernel - kvm: x86: NULL pointer dereference in kvm_apic_has_events function
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http://www.ubuntu.com/usn/USN-2682-1
USN-2682-1: Linux kernel (Utopic HWE) vulnerabilities | Ubuntu security notices
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https://bugzilla.redhat.com/show_bug.cgi?id=1230770
1230770 – (CVE-2015-4692) CVE-2015-4692 kernel: kvm x86: NULL pointer dereference in kvm_apic_has_events functionVendor Advisory
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http://www.securitytracker.com/id/1032798
Linux Kernel Null Pointer Dereference in kvm_apic_has_events() Lets Local Users Deny Service - SecurityTracker
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