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CVE-2015-4700

Status Candidate

Overview

The bpf_int_jit_compile function in arch/x86/net/bpf_jit_comp.c in the Linux kernel before 4.0.6 allows local users to cause a denial of service (system crash) by creating a packet filter and then loading crafted BPF instructions that trigger late convergence by the JIT compiler.

Related Files

Red Hat Security Advisory 2015-1788-01
Posted Sep 17, 2015
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2015-1788-01 - The kernel-rt packages contain the Linux kernel, the core of any Linux operating system. A flaw was found in the kernel's implementation of the Berkeley Packet Filter. A local attacker could craft BPF code to crash the system by creating a situation in which the JIT compiler would fail to correctly optimize the JIT image on the last pass. This would lead to the CPU executing instructions that were not part of the JIT code. Two flaws were found in the way the Linux kernel's networking implementation handled UDP packets with incorrect checksum values. A remote attacker could potentially use these flaws to trigger an infinite loop in the kernel, resulting in a denial of service on the system, or cause a denial of service in applications using the edge triggered epoll functionality.

tags | advisory, remote, denial of service, kernel, local, udp
systems | linux, redhat
advisories | CVE-2014-9585, CVE-2015-0275, CVE-2015-1333, CVE-2015-3212, CVE-2015-4700, CVE-2015-5364, CVE-2015-5366
SHA-256 | 25d0c7614c07675f849c3b6d3284745ade70ce6f99faadcd640f7598d955b66c
Red Hat Security Advisory 2015-1778-01
Posted Sep 17, 2015
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2015-1778-01 - The kernel packages contain the Linux kernel, the core of any Linux operating system. A flaw was found in the kernel's implementation of the Berkeley Packet Filter. A local attacker could craft BPF code to crash the system by creating a situation in which the JIT compiler would fail to correctly optimize the JIT image on the last pass. This would lead to the CPU executing instructions that were not part of the JIT code. Two flaws were found in the way the Linux kernel's networking implementation handled UDP packets with incorrect checksum values. A remote attacker could potentially use these flaws to trigger an infinite loop in the kernel, resulting in a denial of service on the system, or cause a denial of service in applications using the edge triggered epoll functionality.

tags | advisory, remote, denial of service, kernel, local, udp
systems | linux, redhat
advisories | CVE-2014-9585, CVE-2015-0275, CVE-2015-1333, CVE-2015-3212, CVE-2015-4700, CVE-2015-5364, CVE-2015-5366
SHA-256 | 6931087e4966ef5af97d58d33a14d67431f59be2eca9c49d74bab95c4b9e66ae
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-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-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
Ubuntu Security Notice USN-2679-1
Posted Jul 23, 2015
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 2679-1 - 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. 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). Various other issues were also addressed.

tags | advisory, denial of service, kernel, local
systems | linux, ubuntu
advisories | CVE-2015-1805, CVE-2015-4700
SHA-256 | 093b6ea5cf583f5e4862e592941aee13388244e99f55e960dbec4cdfdfad8107
Ubuntu Security Notice USN-2678-1
Posted Jul 23, 2015
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 2678-1 - 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. 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). Various other issues were also addressed.

tags | advisory, denial of service, kernel, local
systems | linux, ubuntu
advisories | CVE-2015-1805, CVE-2015-4700
SHA-256 | e9ec333052661bb9d7f920a92684486047046d470cf844ef04a87798d1297704
Ubuntu Security Notice USN-2666-1
Posted Jul 7, 2015
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 2666-1 - A race condition was discovered in the Linux kernel's file_handle size verification. A local user could exploit this flaw to read potentially sensitive memory locations. A underflow error was discovered in the Linux kernel's Ozmo Devices USB over WiFi host controller driver. A remote attacker could exploit this flaw to cause a denial of service (system crash) or potentially execute arbitrary code via a specially crafted packet. Various other issues were also addressed.

tags | advisory, remote, denial of service, arbitrary, kernel, local
systems | linux, ubuntu
advisories | CVE-2015-1420, CVE-2015-4001, CVE-2015-4002, CVE-2015-4003, CVE-2015-4167, CVE-2015-4700
SHA-256 | 47d9b2874b908191ceb7d6cc05e67c129969a7a846612e0abf42f762272cf153
Ubuntu Security Notice USN-2664-1
Posted Jul 7, 2015
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 2664-1 - A race condition was discovered in the Linux kernel's file_handle size verification. A local user could exploit this flaw to read potentially sensitive memory locations. A underflow error was discovered in the Linux kernel's Ozmo Devices USB over WiFi host controller driver. A remote attacker could exploit this flaw to cause a denial of service (system crash) or potentially execute arbitrary code via a specially crafted packet. Various other issues were also addressed.

tags | advisory, remote, denial of service, arbitrary, kernel, local
systems | linux, ubuntu
advisories | CVE-2015-1420, CVE-2015-4001, CVE-2015-4002, CVE-2015-4003, CVE-2015-4167, CVE-2015-4700
SHA-256 | fa189e6b6391daa79f6ab7ceb545b2f97b172e45e1ec80055aa050d2726b9e27
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