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CVE-2015-4692

Status Candidate

Overview

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.

Related Files

Debian Security Advisory 3329-1
Posted Aug 7, 2015
Authored by Debian | Site debian.org

Debian Linux Security Advisory 3329-1 - Several vulnerabilities have been discovered in the Linux kernel that may lead to a privilege escalation, denial of service or information leak.

tags | advisory, denial of service, kernel, vulnerability
systems | linux, debian
advisories | CVE-2015-1333, CVE-2015-3212, CVE-2015-4692, CVE-2015-4700, CVE-2015-5364, CVE-2015-5366, CVE-2015-5697, CVE-2015-5706, CVE-2015-5707
SHA-256 | 032d7754d15daf5a42e6f9f97780a9dd8431d502054c7f15a05b87b1417f2da4
Ubuntu Security Notice USN-2685-1
Posted Jul 24, 2015
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 2685-1 - A flaw was discovered in the kvm (kernel virtual machine) subsystem's kvm_apic_has_events function. A unprivileged local user could exploit this flaw to cause a denial of service (system crash). A flaw was discovered in how the Linux kernel handles invalid UDP checksums. A remote attacker could exploit this flaw to cause a denial of service using a flood of UDP packets with invalid checksums. Various other issues were also addressed.

tags | advisory, remote, denial of service, kernel, local, udp
systems | linux, ubuntu
advisories | CVE-2015-4692, CVE-2015-5364, CVE-2015-5366
SHA-256 | ff91b08028ce0d9cbb795da024396ec409ee5bce6874e42ac288d5806e460cc5
Ubuntu Security Notice USN-2684-1
Posted Jul 23, 2015
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 2684-1 - A flaw was discovered in the kvm (kernel virtual machine) subsystem's kvm_apic_has_events function. A unprivileged local user could exploit this flaw to cause a denial of service (system crash). Daniel Borkmann reported a kernel crash in the Linux kernel's BPF filter JIT optimization. A local attacker could exploit this flaw to cause a denial of service (system crash). A flaw was discovered in how the Linux kernel handles invalid UDP checksums. A remote attacker could exploit this flaw to cause a denial of service using a flood of UDP packets with invalid checksums. Various other issues were also addressed.

tags | advisory, remote, denial of service, kernel, local, udp
systems | linux, ubuntu
advisories | CVE-2015-4692, CVE-2015-4700, CVE-2015-5364, CVE-2015-5366
SHA-256 | c2a387be4e13bc76e8d691c26a62d180fdafc4908f03c7bf1cdfa528bcb41df7
Ubuntu Security Notice USN-2683-1
Posted Jul 23, 2015
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 2683-1 - A flaw was discovered in the kvm (kernel virtual machine) subsystem's kvm_apic_has_events function. A unprivileged local user could exploit this flaw to cause a denial of service (system crash). Daniel Borkmann reported a kernel crash in the Linux kernel's BPF filter JIT optimization. A local attacker could exploit this flaw to cause a denial of service (system crash). A flaw was discovered in how the Linux kernel handles invalid UDP checksums. A remote attacker could exploit this flaw to cause a denial of service using a flood of UDP packets with invalid checksums. Various other issues were also addressed.

tags | advisory, remote, denial of service, kernel, local, udp
systems | linux, ubuntu
advisories | CVE-2015-4692, CVE-2015-4700, CVE-2015-5364, CVE-2015-5366
SHA-256 | 3af9e86c7769bcaffec157bf917b3e0a30ab6bc938c69d9a3b2611e3ee7a8ec6
Ubuntu Security Notice USN-2682-1
Posted Jul 23, 2015
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 2682-1 - A flaw was discovered in the kvm (kernel virtual machine) subsystem's kvm_apic_has_events function. A unprivileged local user could exploit this flaw to cause a denial of service (system crash). A flaw was discovered in how the Linux kernel handles invalid UDP checksums. A remote attacker could exploit this flaw to cause a denial of service using a flood of UDP packets with invalid checksums. Various other issues were also addressed.

tags | advisory, remote, denial of service, kernel, local, udp
systems | linux, ubuntu
advisories | CVE-2015-4692, CVE-2015-5364, CVE-2015-5366
SHA-256 | a6a98fab9d0381b3994020610c156d8f63399b7e9c2518b29e9dac5d0ac7b685
Ubuntu Security Notice USN-2681-1
Posted Jul 23, 2015
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 2681-1 - A flaw was discovered in the user space memory copying for the pipe iovecs in the Linux kernel. An unprivileged local user could exploit this flaw to cause a denial of service (system crash) or potentially escalate their privileges. A flaw was discovered in the kvm (kernel virtual machine) subsystem's kvm_apic_has_events function. A unprivileged local user could exploit this flaw to cause a denial of service (system crash). Various other issues were also addressed.

tags | advisory, denial of service, kernel, local
systems | linux, ubuntu
advisories | CVE-2015-1805, CVE-2015-4692, CVE-2015-4700, CVE-2015-5364, CVE-2015-5366
SHA-256 | ff3d9b87245aa7a7be470860e38a4c3db83869527facf2395999f9c0ee992785
Ubuntu Security Notice USN-2680-1
Posted Jul 23, 2015
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 2680-1 - A flaw was discovered in the user space memory copying for the pipe iovecs in the Linux kernel. An unprivileged local user could exploit this flaw to cause a denial of service (system crash) or potentially escalate their privileges. A flaw was discovered in the kvm (kernel virtual machine) subsystem's kvm_apic_has_events function. A unprivileged local user could exploit this flaw to cause a denial of service (system crash). Various other issues were also addressed.

tags | advisory, denial of service, kernel, local
systems | linux, ubuntu
advisories | CVE-2015-1805, CVE-2015-4692, CVE-2015-4700, CVE-2015-5364, CVE-2015-5366
SHA-256 | 9f8c52cb857d1bf6c9403fdeb6ee3ffa2190d244d316b7b2e938a8957adf6f3b
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