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CVE-2017-7645

Status Candidate

Overview

The NFSv2/NFSv3 server in the nfsd subsystem in the Linux kernel through 4.10.11 allows remote attackers to cause a denial of service (system crash) via a long RPC reply, related to net/sunrpc/svc.c, fs/nfsd/nfs3xdr.c, and fs/nfsd/nfsxdr.c.

Related Files

Red Hat Security Advisory 2018-1319-01
Posted May 8, 2018
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2018-1319-01 - The kernel packages contain the Linux kernel, the core of any Linux operating system. Issues addressed include denial of service and use-after-free vulnerabilities.

tags | advisory, denial of service, kernel, vulnerability
systems | linux, redhat
advisories | CVE-2017-1000410, CVE-2017-13166, CVE-2017-18017, CVE-2017-7645, CVE-2017-8824, CVE-2018-8897
SHA-256 | d3fe9410234a0ad13180edc1acd09d1f107cb6f71fe5498329640037d6599e2e
Red Hat Security Advisory 2017-1615-01
Posted Jun 28, 2017
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2017-1615-01 - The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fix: A flaw was found in the way Linux kernel allocates heap memory to build the scattergather list from a fragment list->frag_list) in the socket buffer. The heap overflow occurred if 'MAX_SKB_FRAGS + 1' parameter and 'NETIF_F_FRAGLIST' feature were used together. A remote user or process could use this flaw to potentially escalate their privilege on a system.

tags | advisory, remote, overflow, kernel
systems | linux, redhat
advisories | CVE-2017-2583, CVE-2017-6214, CVE-2017-7477, CVE-2017-7645, CVE-2017-7895
SHA-256 | f1988095293b1d64049e46bd41403517aff425f5b6ac9160c3403479e585fd90
Red Hat Security Advisory 2017-1616-01
Posted Jun 28, 2017
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2017-1616-01 - The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements. Security Fix: A flaw was found in the way memory was being allocated on the stack for user space binaries. If heap and stack memory regions were adjacent to each other, an attacker could use this flaw to jump over the stack guard gap, cause controlled memory corruption on process stack or the adjacent memory region, and thus increase their privileges on the system. This is a kernel-side mitigation which increases the stack guard gap size from one page to 1 MiB to make successful exploitation of this issue more difficult.

tags | advisory, kernel
systems | linux, redhat
advisories | CVE-2017-1000364, CVE-2017-2583, CVE-2017-6214, CVE-2017-7477, CVE-2017-7645, CVE-2017-7895
SHA-256 | 8aecb00d2b9667bdf5d8c27595fddfad109f0a2bfd6bc403167c8298e434ebc5
Red Hat Security Advisory 2017-1647-01
Posted Jun 28, 2017
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2017-1647-01 - The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements. Security Fix: A flaw was found in the way memory was being allocated on the stack for user space binaries. If heap and stack memory regions were adjacent to each other, an attacker could use this flaw to jump over the stack guard gap, cause controlled memory corruption on process stack or the adjacent memory region, and thus increase their privileges on the system. This is a kernel-side mitigation which increases the stack guard gap size from one page to 1 MiB to make successful exploitation of this issue more difficult.

tags | advisory, kernel
systems | linux, redhat
advisories | CVE-2017-1000364, CVE-2017-6214, CVE-2017-7645, CVE-2017-7895
SHA-256 | 4df02e3c6dd354591d13a86f53c57cd626f1477f6715af4f1d6dffe22a92ba18
Debian Security Advisory 3886-1
Posted Jun 19, 2017
Authored by Debian | Site debian.org

Debian Linux Security Advisory 3886-1 - Several vulnerabilities have been discovered in the Linux kernel that may lead to a privilege escalation, denial of service or information leaks.

tags | advisory, denial of service, kernel, vulnerability
systems | linux, debian
advisories | CVE-2017-0605, CVE-2017-1000364, CVE-2017-7487, CVE-2017-7645, CVE-2017-7895, CVE-2017-8064, CVE-2017-8890, CVE-2017-8924, CVE-2017-8925, CVE-2017-9074, CVE-2017-9075, CVE-2017-9076, CVE-2017-9077, CVE-2017-9242
SHA-256 | eaaea7c322ad777f9581281a967dd44345471bc13a1d10f9d1bb0857fbdb1b1a
Ubuntu Security Notice USN-3312-2
Posted Jun 7, 2017
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3312-2 - USN-3312-1 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 netfilter netlink implementation in the Linux kernel did not properly validate batch messages. A local attacker with the CAP_NET_ADMIN capability could use this to expose sensitive information or cause a denial of service. Various other issues were also addressed.

tags | advisory, denial of service, kernel, local, vulnerability
systems | linux, ubuntu
advisories | CVE-2016-7913, CVE-2016-7917, CVE-2016-8632, CVE-2016-9083, CVE-2016-9084, CVE-2016-9604, CVE-2017-0605, CVE-2017-2596, CVE-2017-2671, CVE-2017-6001, CVE-2017-7472, CVE-2017-7618, CVE-2017-7645, CVE-2017-7889, CVE-2017-7895
SHA-256 | 9bc4f5c509d58e7374d08b91a33f59e8cc908ffa5e09f39be89e361fa0dd271e
Ubuntu Security Notice USN-3312-1
Posted Jun 7, 2017
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3312-1 - It was discovered that the netfilter netlink implementation in the Linux kernel did not properly validate batch messages. A local attacker with the CAP_NET_ADMIN capability could use this to expose sensitive information or cause a denial of service. Qian Zhang discovered a heap-based buffer overflow in the tipc_msg_build function in the Linux kernel. A local attacker could use to cause a denial of service or possibly execute arbitrary code with administrative privileges. Various other issues were also addressed.

tags | advisory, denial of service, overflow, arbitrary, kernel, local
systems | linux, ubuntu
advisories | CVE-2016-7913, CVE-2016-7917, CVE-2016-8632, CVE-2016-9083, CVE-2016-9084, CVE-2016-9604, CVE-2017-0605, CVE-2017-2596, CVE-2017-2671, CVE-2017-6001, CVE-2017-7472, CVE-2017-7618, CVE-2017-7645, CVE-2017-7889, CVE-2017-7895
SHA-256 | f93b3056d137e6f094a683c78f33de2cfc51578e2b30f5bf0580b49f3136e70e
Ubuntu Security Notice USN-3314-1
Posted Jun 7, 2017
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3314-1 - It was discovered that the keyring implementation in the Linux kernel in some situations did not prevent special internal keyrings from being joined by userspace keyrings. A privileged local attacker could use this to bypass module verification. It was discovered that a buffer overflow existed in the trace subsystem in the Linux kernel. A privileged local attacker could use this to execute arbitrary code. Various other issues were also addressed.

tags | advisory, overflow, arbitrary, kernel, local
systems | linux, ubuntu
advisories | CVE-2016-9604, CVE-2017-0605, CVE-2017-2671, CVE-2017-7277, CVE-2017-7472, CVE-2017-7618, CVE-2017-7645, CVE-2017-7889, CVE-2017-7895, CVE-2017-7979, CVE-2017-8063, CVE-2017-8064, CVE-2017-8067
SHA-256 | 97b6224fb0c1440e3c27196c751fe7e85e5f5e540f680453e3395eb740d8b882
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