kernel: nfsd buffer overflow by RPC message over TCP with garbage data

A buffer overflow flaw was found in the Linux kernel nfsd network file system subsystem. The way a user sends RPC over TCP with excess data added at the end of the message could allow a remote user to starve the resources, causing a denial of service...

kernel: nfsd buffer overflow by RPC message over TCP with garbage data

A buffer overflow flaw was found in the Linux kernel nfsd network file system subsystem. The way a user sends RPC over TCP with excess data added at the end of the message could allow a remote user to starve the resources, causing a denial of service...

The vulnerability of the CIFS file system’s arbitrary utility command, related to the lack of measures for cleaning input data, allows a perpetrator to gain access to confidential data, compromise its integrity, and cause service failures.

The vulnerability of the CIFS file system’s arbitrary utility command related to the lack of measures for cleaning input data. Exploiting this vulnerability allows an attacker to access confidential data, compromise its integrity, and cause service failures...

USN-5804-2 linux-aws, linux-gcp-4.15 vulnerabilities

It was discovered that the NFSD implementation in the Linux kernel did not properly handle some RPC messages, leading to a buffer overflow. A remote attacker could use this to cause a denial of service system crash or possibly execute arbitrary code. CVE-2022-43945 Tamás Koczka discovered that th...

USN-5802-1 linux, linux-aws, linux-kvm, linux-lts-xenial vulnerabilities

It was discovered that the NFSD implementation in the Linux kernel did not properly handle some RPC messages, leading to a buffer overflow. A remote attacker could use this to cause a denial of service system crash or possibly execute arbitrary code. CVE-2022-43945 Tamás Koczka discovered that th...

CVE-2022-43380

IBM AIX 7.1, 7.2, 7.3, and VIOS 3.1 could allow a non-privileged local user to exploit a vulnerability in the AIX NFS kernel extension to cause a denial of service. IBM X-Force ID: 238640...

The vulnerability of the NFS file system driver in Linux operating systems allows a hacker to trigger a service failure.

The vulnerability of the Linux operating system’s kernel file system driver is related to the use of memory after it is freed. Exploiting this vulnerability can allow a remote attacker to cause service interruptions...

kernel: nfsd buffer overflow by RPC message over TCP with garbage data

A buffer overflow flaw was found in the Linux kernel nfsd network file system subsystem. The way a user sends RPC over TCP with excess data added at the end of the message could allow a remote user to starve the resources, causing a denial of service...

Linux kernel 资源管理错误漏洞

Linux kernel is the kernel used by Linux, the open source operating system of the Linux Foundation in the United States. Linux kernel suffers from a resource management error vulnerability. An attacker could exploit this vulnerability by forcing the reuse of a freed memory region via nfs42sscopen...

kernel: nfsd buffer overflow by RPC message over TCP with garbage data

A buffer overflow flaw was found in the Linux kernel nfsd network file system subsystem. The way a user sends RPC over TCP with excess data added at the end of the message could allow a remote user to starve the resources, causing a denial of service...

kernel: nfsd buffer overflow by RPC message over TCP with garbage data

A buffer overflow flaw was found in the Linux kernel nfsd network file system subsystem. The way a user sends RPC over TCP with excess data added at the end of the message could allow a remote user to starve the resources, causing a denial of service...

USN-5773-1 linux-oem-5.17 vulnerabilities

It was discovered that the NFSD implementation in the Linux kernel did not properly handle some RPC messages, leading to a buffer overflow. A remote attacker could use this to cause a denial of service system crash or possibly execute arbitrary code. CVE-2022-43945 Jann Horn discovered that the...

kernel: nfs_atomic_open() returns uninitialized data instead of ENOTDIR

A flaw was found in the Linux kernel. When an application tries to open a directory using the ODIRECTORY flag in a mounted NFS filesystem, a lookup operation is performed. If the NFS server returns a file as a result of the lookup, the NFS filesystem returns an uninitialized file descriptor inste...

kernel: nfs_atomic_open() returns uninitialized data instead of ENOTDIR

A flaw was found in the Linux kernel. When an application tries to open a directory using the ODIRECTORY flag in a mounted NFS filesystem, a lookup operation is performed. If the NFS server returns a file as a result of the lookup, the NFS filesystem returns an uninitialized file descriptor inste...

PT-2022-35029 · Linux · Linux Kernel

Name of the Vulnerable Software and Affected Versions: Linux Kernel versions prior to v6.0.3 Description: The issue is related to a use-after-free error on the source server when performing inter-server copy. This problem is noted in the context of NFSD. The actual impact and potential for attack...

PT-2022-35386 · Linux · Linux Kernel

Name of the Vulnerable Software and Affected Versions: Linux Kernel versions prior to 5.15.75 Description: The issue concerns a send buffer overflow in NFSv3 READ. The actual impact and attack plausibility have not yet been proven. Recommendations: For Linux Kernel versions prior to 5.15.75, upda...

The Linux kernel NFSD implementation prior to versions 5.19.17 and 6.0.2 are vulnerable to buffer overflow. NFSD tracks the number of pages held by each NFSD thread by combining the receive and send buffers of a remote procedure call (RPC) into a single array of pages. A client can force the send buffer to shrink by sending an RPC message over TCP with garbage data added at the end of the message. The RPC message with garbage data is still correctly formed according to the specification and is passed forward to handlers. Vulnerable code in NFSD is not expecting the oversized request and writes beyond the allocated buffer space. CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

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REJECTED CVE In the Linux kernel, the following vulnerability has been resolved: NFSD: Fix exposure in nfsd4decodebitmap The Linux kernel CVE team has assigned CVE-2021-47213 to this issue...

kernel: nfs_atomic_open() returns uninitialized data instead of ENOTDIR

A flaw was found in the Linux kernel. When an application tries to open a directory using the ODIRECTORY flag in a mounted NFS filesystem, a lookup operation is performed. If the NFS server returns a file as a result of the lookup, the NFS filesystem returns an uninitialized file descriptor inste...

PT-2024-11228 · Linux +2 · Linux Kernel +2

Name of the Vulnerable Software and Affected Versions: Linux kernel affected versions not specified Description: A vulnerability has been resolved in the Linux kernel related to the NFSD, specifically in the nfsd4 decode bitmap function. The issue was reported by [email protected]. Recommendation...