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CVE-2017-6074

Status Candidate

Overview

The dccp_rcv_state_process function in net/dccp/input.c in the Linux kernel through 4.9.11 mishandles DCCP_PKT_REQUEST packet data structures in the LISTEN state, which allows local users to obtain root privileges or cause a denial of service (double free) via an application that makes an IPV6_RECVPKTINFO setsockopt system call.

Related Files

Kernel Live Patch Security Notice LSN-0025-1
Posted Jul 16, 2017
Authored by Benjamin M. Romer

Andrey Konovalov discovered a use-after-free vulnerability in the DCCP implementation in the Linux kernel. A local attacker could use this to cause a denial of service (system crash) or possibly gain administrative privileges. It was discovered that the stack guard page for processes in the Linux kernel was not sufficiently large enough to prevent overlapping with the heap. An attacker could leverage this with another vulnerability to execute arbitrary code and gain administrative privileges. Various other vulnerabilities were addressed.

tags | advisory, denial of service, arbitrary, kernel, local, vulnerability
systems | linux
advisories | CVE-2016-8632, CVE-2016-9604, CVE-2017-1000364, CVE-2017-2584, CVE-2017-6074, CVE-2017-7346, CVE-2017-7472, CVE-2017-8890, CVE-2017-9074, CVE-2017-9075, CVE-2017-9242
SHA-256 | 91cb2bc988d62a783323447ecb77bf0d50a13e5d484b3ad48a99a46f99980cdf
Red Hat Security Advisory 2017-1209-01
Posted May 10, 2017
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2017-1209-01 - The rhev-hypervisor package provides a Red Hat Enterprise Virtualization Hypervisor ISO disk image. The Red Hat Enterprise Virtualization Hypervisor is a dedicated Kernel-based Virtual Machine hypervisor. It includes everything necessary to run and manage virtual machines: A subset of the Red Hat Enterprise Linux operating environment and the Red Hat Enterprise Virtualization Agent. Security Fix: A use-after-free flaw was found in the way the Linux kernel's Datagram Congestion Control Protocol implementation freed SKB resources for a DCCP_PKT_REQUEST packet when the IPV6_RECVPKTINFO option is set on the socket. A local, unprivileged user could use this flaw to alter the kernel memory, allowing them to escalate their privileges on the system.

tags | advisory, kernel, local, protocol
systems | linux, redhat
advisories | CVE-2017-6074
SHA-256 | 2f16680716ad6b5f3fd9b91582d4e0d857c960d828bb14bce374dcbc21b0cbf1
Kernel Live Patch Security Notice LSN-0021-1
Posted Apr 15, 2017
Authored by Benjamin M. Romer

Several security issues were fixed in the kernel. Andrey Konovalov discovered that the AF_PACKET implementation in the Linux kernel did not properly validate certain block-size data. A local attacker could use this to cause a denial of service (system crash). Andrey Konovalov discovered a use-after-free vulnerability in the DCCP implementation in the Linux kernel. A local attacker could use this to cause a denial of service (system crash) or possibly gain administrative privileges. Various other issues were also addressed.

tags | advisory, denial of service, kernel, local
systems | linux
advisories | CVE-2016-5195, CVE-2016-7910, CVE-2016-7911, CVE-2016-7912, CVE-2016-7916, CVE-2016-8399, CVE-2016-8630, CVE-2016-8633, CVE-2016-9191, CVE-2016-9555, CVE-2016-9756, CVE-2017-2583, CVE-2017-6074, CVE-2017-7308
SHA-256 | 42b1d7e92d487c05901f19f08b2e6c9e119556985c2054e46a019c3a3bd7bf0d
Red Hat Security Advisory 2017-0932-01
Posted Apr 12, 2017
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2017-0932-01 - The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements. Security Fix: A race condition flaw was found in the N_HLDC Linux kernel driver when accessing n_hdlc.tbuf list that can lead to double free. A local, unprivileged user able to set the HDLC line discipline on the tty device could use this flaw to increase their privileges on the system.

tags | advisory, kernel, local
systems | linux, redhat
advisories | CVE-2016-8650, CVE-2016-9793, CVE-2017-2618, CVE-2017-2636, CVE-2017-6074
SHA-256 | b6e837c5c6ec5d457e2ca9d9145c07e4d2242405330b287dec280775937eae69
Red Hat Security Advisory 2017-0501-01
Posted Mar 14, 2017
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2017-0501-01 - The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fix: A use-after-free flaw was found in the way the Linux kernel's Datagram Congestion Control Protocol implementation freed SKB resources for a DCCP_PKT_REQUEST packet when the IPV6_RECVPKTINFO option is set on the socket. A local, unprivileged user could use this flaw to alter the kernel memory, allowing them to escalate their privileges on the system.

tags | advisory, kernel, local, protocol
systems | linux, redhat
advisories | CVE-2017-6074
SHA-256 | bb30ef2371423d1dbb404edf12f77c42cec1872dcbcfc2a17f6ca8d526e4cc12
Red Hat Security Advisory 2017-0403-01
Posted Mar 3, 2017
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2017-0403-01 - The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fix: A use-after-free flaw was found in the way the Linux kernel's Datagram Congestion Control Protocol implementation freed SKB resources for a DCCP_PKT_REQUEST packet when the IPV6_RECVPKTINFO option is set on the socket. A local, unprivileged user could use this flaw to alter the kernel memory, allowing them to escalate their privileges on the system.

tags | advisory, kernel, local, protocol
systems | linux, redhat
advisories | CVE-2017-6074
SHA-256 | 781af02e07eb075a3ac897044cb7330ea4e7546d0f2ef6445227d4d3667c7b16
Red Hat Security Advisory 2017-0365-01
Posted Mar 2, 2017
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2017-0365-01 - The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fix: A use-after-free flaw was found in the way the Linux kernel's Datagram Congestion Control Protocol implementation freed SKB resources for a DCCP_PKT_REQUEST packet when the IPV6_RECVPKTINFO option is set on the socket. A local, unprivileged user could use this flaw to alter the kernel memory, allowing them to escalate their privileges on the system.

tags | advisory, kernel, local, protocol
systems | linux, redhat
advisories | CVE-2017-6074
SHA-256 | d9ef458911309cb2316221f6062be51938eb34d73c399d567006702fbdea8ef0
Red Hat Security Advisory 2017-0366-01
Posted Mar 2, 2017
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2017-0366-01 - The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fix: A use-after-free flaw was found in the way the Linux kernel's Datagram Congestion Control Protocol implementation freed SKB resources for a DCCP_PKT_REQUEST packet when the IPV6_RECVPKTINFO option is set on the socket. A local, unprivileged user could use this flaw to alter the kernel memory, allowing them to escalate their privileges on the system.

tags | advisory, kernel, local, protocol
systems | linux, redhat
advisories | CVE-2017-6074
SHA-256 | 5889edb61dd5f84d21d71e6917a96f2d86bbc9e277f448c4b77bcd8323057919
Red Hat Security Advisory 2017-0347-01
Posted Feb 28, 2017
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2017-0347-01 - The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fix: A use-after-free flaw was found in the way the Linux kernel's Datagram Congestion Control Protocol implementation freed SKB resources for a DCCP_PKT_REQUEST packet when the IPV6_RECVPKTINFO option is set on the socket. A local, unprivileged user could use this flaw to alter the kernel memory, allowing them to escalate their privileges on the system.

tags | advisory, kernel, local, protocol
systems | linux, redhat
advisories | CVE-2017-2634, CVE-2017-6074
SHA-256 | 1b4b8e78cedd629a22e05bbddd3f94b5521690ed6d0fcfb8cf2bee78014e4ed5
Red Hat Security Advisory 2017-0346-01
Posted Feb 28, 2017
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2017-0346-01 - The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fix: A use-after-free flaw was found in the way the Linux kernel's Datagram Congestion Control Protocol implementation freed SKB resources for a DCCP_PKT_REQUEST packet when the IPV6_RECVPKTINFO option is set on the socket. A local, unprivileged user could use this flaw to alter the kernel memory, allowing them to escalate their privileges on the system.

tags | advisory, kernel, local, protocol
systems | linux, redhat
advisories | CVE-2017-2634, CVE-2017-6074
SHA-256 | f5aa4478eea393b3e04526c6234ee9c81c4928eb5136499b95092bff79ea51bb
Red Hat Security Advisory 2017-0345-01
Posted Feb 28, 2017
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2017-0345-01 - The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fix: A use-after-free flaw was found in the way the Linux kernel's Datagram Congestion Control Protocol implementation freed SKB resources for a DCCP_PKT_REQUEST packet when the IPV6_RECVPKTINFO option is set on the socket. A local, unprivileged user could use this flaw to alter the kernel memory, allowing them to escalate their privileges on the system.

tags | advisory, kernel, local, protocol
systems | linux, redhat
advisories | CVE-2017-6074
SHA-256 | 609557410e2c1cd23501685056603dcd1fc747b1262e5c934750bdcd97c4a50c
Linux Kernel 4.4.0 Ubuntu DCCP Double-Free Crash
Posted Feb 27, 2017
Authored by Andrey Konovalov

Linux kernel version 4.4.0 (Ubuntu) DCCP double-free crash denial of service proof of concept exploit.

tags | exploit, denial of service, kernel, proof of concept
systems | linux, ubuntu
advisories | CVE-2017-6074
SHA-256 | a0f4f346bb3922a65ad83f6434b6f4f0bf3fb14dd45ace78225df3ddb92a4015
Linux Kernel 4.4.0 Ubuntu DCCP Double-Free Privilege Escalation
Posted Feb 27, 2017
Authored by Andrey Konovalov

Linux Kernel version 4.4.0 (Ubuntu) DCCP double-free privilege escalation exploit that includes a semi-reliable SMAP/SMEP bypass.

tags | exploit, kernel
systems | linux, ubuntu
advisories | CVE-2017-6074
SHA-256 | d95a6320998d1c07f0dc742ce98f62afafaa9089380d2236114f837209858df1
Red Hat Security Advisory 2017-0323-01
Posted Feb 25, 2017
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2017-0323-01 - The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fix: A use-after-free flaw was found in the way the Linux kernel's Datagram Congestion Control Protocol implementation freed SKB resources for a DCCP_PKT_REQUEST packet when the IPV6_RECVPKTINFO option is set on the socket. A local, unprivileged user could use this flaw to alter the kernel memory, allowing them to escalate their privileges on the system.

tags | advisory, kernel, local, protocol
systems | linux, redhat
advisories | CVE-2017-2634, CVE-2017-6074
SHA-256 | 056578c1ba769d6ac2dcce94e9e76988a68b5db1def1c44c336d2cf676e7cda7
Red Hat Security Advisory 2017-0324-01
Posted Feb 25, 2017
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2017-0324-01 - The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fix: A use-after-free flaw was found in the way the Linux kernel's Datagram Congestion Control Protocol implementation freed SKB resources for a DCCP_PKT_REQUEST packet when the IPV6_RECVPKTINFO option is set on the socket. A local, unprivileged user could use this flaw to alter the kernel memory, allowing them to escalate their privileges on the system.

tags | advisory, kernel, local, protocol
systems | linux, redhat
advisories | CVE-2017-6074
SHA-256 | f14e2b46c2b71cef1afb04a771220b5372f199e76244ba0af668358a52b9f888
Red Hat Security Advisory 2017-0316-01
Posted Feb 24, 2017
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2017-0316-01 - The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fix: A use-after-free flaw was found in the way the Linux kernel's Datagram Congestion Control Protocol implementation freed SKB resources for a DCCP_PKT_REQUEST packet when the IPV6_RECVPKTINFO option is set on the socket. A local, unprivileged user could use this flaw to alter the kernel memory, allowing them to escalate their privileges on the system.

tags | advisory, kernel, local, protocol
systems | linux, redhat
advisories | CVE-2017-6074
SHA-256 | b636031802de3b3dfef681e9912cabfab34e12ce63c092ae7a18e3a97f900150
Debian Security Advisory 3791-1
Posted Feb 23, 2017
Authored by Debian | Site debian.org

Debian Linux Security Advisory 3791-1 - Several vulnerabilities have been discovered in the Linux kernel that may lead to a privilege escalation, denial of service or have other impacts.

tags | advisory, denial of service, kernel, vulnerability
systems | linux, debian
advisories | CVE-2016-6786, CVE-2016-6787, CVE-2016-8405, CVE-2016-9191, CVE-2017-2583, CVE-2017-2584, CVE-2017-2596, CVE-2017-2618, CVE-2017-5549, CVE-2017-5551, CVE-2017-5897, CVE-2017-5970, CVE-2017-6001, CVE-2017-6074
SHA-256 | d4c6af8f0e3dd4d9e278a3515440e0936dca73862bdc065cf6bd5e2d14200203
Red Hat Security Advisory 2017-0293-01
Posted Feb 23, 2017
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2017-0293-01 - The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fix: A use-after-free flaw was found in the way the Linux kernel's Datagram Congestion Control Protocol implementation freed SKB resources for a DCCP_PKT_REQUEST packet when the IPV6_RECVPKTINFO option is set on the socket. A local, unprivileged user could use this flaw to alter the kernel memory, allowing them to escalate their privileges on the system.

tags | advisory, kernel, local, protocol
systems | linux, redhat
advisories | CVE-2017-6074
SHA-256 | 675d2cff55b3e4f76bda52e3edcac6e3540ae592d7cec108e0884eb508679175
Red Hat Security Advisory 2017-0295-01
Posted Feb 23, 2017
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2017-0295-01 - The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements. Security Fix: A use-after-free flaw was found in the way the Linux kernel's Datagram Congestion Control Protocol implementation freed SKB resources for a DCCP_PKT_REQUEST packet when the IPV6_RECVPKTINFO option is set on the socket. A local, unprivileged user could use this flaw to alter the kernel memory, allowing them to escalate their privileges on the system.

tags | advisory, kernel, local, protocol
systems | linux, redhat
advisories | CVE-2017-6074
SHA-256 | 43f786bca525228053ddc893e7b07e03f946f70afcdc61825d743ae0d53139bc
Red Hat Security Advisory 2017-0294-01
Posted Feb 23, 2017
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2017-0294-01 - The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fix: A use-after-free flaw was found in the way the Linux kernel's Datagram Congestion Control Protocol implementation freed SKB resources for a DCCP_PKT_REQUEST packet when the IPV6_RECVPKTINFO option is set on the socket. A local, unprivileged user could use this flaw to alter the kernel memory, allowing them to escalate their privileges on the system.

tags | advisory, kernel, local, protocol
systems | linux, redhat
advisories | CVE-2017-6074
SHA-256 | 0fb4e054d84d8aecf3a85b795c0e3c8be31aec44f88499706fea037f8323067b
Ubuntu Security Notice USN-3208-1
Posted Feb 23, 2017
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3208-1 - It was discovered that the generic SCSI block layer in the Linux kernel did not properly restrict write operations in certain situations. A local attacker could use this to cause a denial of service or possibly gain administrative privileges. CAI Qian discovered that the sysctl implementation in the Linux kernel did not properly perform reference counting in some situations. An unprivileged attacker could use this to cause a denial of service. Various other issues were also addressed.

tags | advisory, denial of service, kernel, local
systems | linux, ubuntu
advisories | CVE-2016-10088, CVE-2016-9191, CVE-2016-9588, CVE-2017-2583, CVE-2017-2584, CVE-2017-5549, CVE-2017-6074
SHA-256 | 06bc59f5224049671a0fcd3f4d851d69bdc6602bedb41005a8a51bcf1c98fa56
Ubuntu Security Notice USN-3209-1
Posted Feb 23, 2017
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3209-1 - It was discovered that the generic SCSI block layer in the Linux kernel did not properly restrict write operations in certain situations. A local attacker could use this to cause a denial of service or possibly gain administrative privileges. Jim Mattson discovered that the KVM implementation in the Linux kernel mismanages the #BP and #OF exceptions. A local attacker in a guest virtual machine could use this to cause a denial of service. Various other issues were also addressed.

tags | advisory, denial of service, kernel, local
systems | linux, ubuntu
advisories | CVE-2016-10088, CVE-2016-9588, CVE-2017-6074
SHA-256 | fc8efec5bc02f4a0dd164d80178c39462832170db02485b791a003ea5eff78dd
Ubuntu Security Notice USN-3208-2
Posted Feb 23, 2017
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3208-2 - USN-3208-1 fixed vulnerabilities in the Linux kernel for Ubuntu 16.04 LTS. This update provides the corresponding updates for the Linux Hardware Enablement kernel from Ubuntu 16.04 LTS for Ubuntu 14.04 LTS. It was discovered that the generic SCSI block layer in the Linux kernel did not properly restrict write operations in certain situations. A local attacker could use this to cause a denial of service or possibly gain administrative privileges. Various other issues were also addressed.

tags | advisory, denial of service, kernel, local, vulnerability
systems | linux, ubuntu
advisories | CVE-2016-10088, CVE-2016-9191, CVE-2016-9588, CVE-2017-2583, CVE-2017-2584, CVE-2017-5549, CVE-2017-6074
SHA-256 | 1d3dac77e17589a335d73b1696ce93581c43caf1d8c627cd121b232338ea070c
Ubuntu Security Notice USN-3207-2
Posted Feb 23, 2017
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3207-2 - USN-3207-1 fixed vulnerabilities in the Linux kernel for Ubuntu 14.04 LTS. This update provides the corresponding updates for the Linux Hardware Enablement kernel from Ubuntu 14.04 LTS for Ubuntu 12.04 LTS. It was discovered that a use-after-free vulnerability existed in the block device layer of the Linux kernel. A local attacker could use this to cause a denial of service or possibly gain administrative privileges. Various other issues were also addressed.

tags | advisory, denial of service, kernel, local, vulnerability
systems | linux, ubuntu
advisories | CVE-2016-7910, CVE-2016-7911, CVE-2017-6074
SHA-256 | da2d54a183091695057210caf21913be9b3b7213195d0df2dcfb4bcd1c217b32
Ubuntu Security Notice USN-3207-1
Posted Feb 23, 2017
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3207-1 - It was discovered that a use-after-free vulnerability existed in the block device layer of the Linux kernel. A local attacker could use this to cause a denial of service or possibly gain administrative privileges. Dmitry Vyukov discovered a use-after-free vulnerability in the sys_ioprio_get function in the Linux kernel. A local attacker could use this to cause a denial of service or possibly gain administrative privileges. Various other issues were also addressed.

tags | advisory, denial of service, kernel, local
systems | linux, ubuntu
advisories | CVE-2016-7910, CVE-2016-7911, CVE-2017-6074
SHA-256 | 8c63b74c2660cad561d31b5daa2b648f239ed45fba675efdbab4f5568685b605
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