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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
MD5 | 42ccdba2244f2e29052f626231d0a846
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
MD5 | 9cfe18ce0b936ec4aede687d0c578c6b
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
MD5 | 7931eb75308b0094304dfb562742ac60
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
MD5 | 41824a6599589efdca21090fad590230
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
MD5 | 7ba642cce9cb63e641f1c54ff2f0b5a2
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
MD5 | f8dcccce709ef81f0592b215acb9e196
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
MD5 | faa65f948d2b34a3bc146375c9d83828
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
MD5 | 8561a3f60f80492e6117f72e7afc1f1a
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