USN-7939-1 linux-azure, linux-azure-5.4 vulnerabilities

Jean-Claude Graf, Sandro Rüegge, Ali Hajiabadi, and Kaveh Razavi discovered that the Linux kernel contained insufficient branch predictor isolation between a guest and a userspace hypervisor for certain processors. This flaw is known as VMSCAPE. An attacker in a guest VM could possibly use this t...

UBUNTU-CVE-2025-68295

In the Linux kernel, the following vulnerability has been resolved: smb: client: fix memory leak in cifsconstructtcon When having a multiuser mount with domain= specified and using cifscreds, cifssetcifscreds will end up setting @ctx-domainname, so it needs to be freed before leaving...

EUVD-2025-203653

In the Linux kernel, the following vulnerability has been resolved: NFS: Check the TLS certificate fields in nfsmatchclient If the TLS security policy is of type RPCXPRTSECTLSX509, then the certserial and privkeyserial fields need to match as well since they define the client's identity, as...

EUVD-2025-203654

In the Linux kernel, the following vulnerability has been resolved: NFS: Fix LTP test failures when timestamps are delegated The utimes01 and utime06 tests fail when delegated timestamps are enabled, specifically in subtests that modify the atime and mtime fields using the 'nobody' user ID. The...

CVE-2025-68243

In the Linux kernel, the following vulnerability has been resolved: NFS: Check the TLS certificate fields in nfsmatchclient If the TLS security policy is of type RPCXPRTSECTLSX509, then the certserial and privkeyserial fields need to match as well since they define the client's identity, as...

CVE-2025-68242

In the Linux kernel, the following vulnerability has been resolved: NFS: Fix LTP test failures when timestamps are delegated The utimes01 and utime06 tests fail when delegated timestamps are enabled, specifically in subtests that modify the atime and mtime fields using the 'nobody' user ID. The...

CVE-2025-68242

In the Linux kernel, the following vulnerability has been resolved: NFS: Fix LTP test failures when timestamps are delegated The utimes01 and utime06 tests fail when delegated timestamps are enabled, specifically in subtests that modify the atime and mtime fields using the 'nobody' user ID. The...

UBUNTU-CVE-2025-68243

In the Linux kernel, the following vulnerability has been resolved: NFS: Check the TLS certificate fields in nfsmatchclient If the TLS security policy is of type RPCXPRTSECTLSX509, then the certserial and privkeyserial fields need to match as well since they define the client's identity, as...

UBUNTU-CVE-2025-68242

In the Linux kernel, the following vulnerability has been resolved: NFS: Fix LTP test failures when timestamps are delegated The utimes01 and utime06 tests fail when delegated timestamps are enabled, specifically in subtests that modify the atime and mtime fields using the 'nobody' user ID. The...

CVE-2025-68243

The CVE affects the Linux kernel NFS client TLS/X.509 handling in nfs_match_client(). When RPC_XPRTSEC_TLS_X509 is used, the cert_serial and privkey_serial fields must match to validate the client identity; otherwise, there can be unintended session reuse. The issue has been resolved in the Linux...

CVE-2025-68243 NFS: Check the TLS certificate fields in nfs_match_client()

In the Linux kernel, the following vulnerability has been resolved: NFS: Check the TLS certificate fields in nfsmatchclient If the TLS security policy is of type RPCXPRTSECTLSX509, then the certserial and privkeyserial fields need to match as well since they define the client's identity, as...

CVE-2025-68242

CVE-2025-68242 concerns the Linux kernel NFS attribute handling. The description notes that when delegated timestamps are allowed, the kernel’s nfs_setattr does not verify the inode UID against the caller’s fsuid, leading to failures in LTP tests utimes01/utime06 (the tests modify atime/mtime usi...

CVE-2025-68242 NFS: Fix LTP test failures when timestamps are delegated

In the Linux kernel, the following vulnerability has been resolved: NFS: Fix LTP test failures when timestamps are delegated The utimes01 and utime06 tests fail when delegated timestamps are enabled, specifically in subtests that modify the atime and mtime fields using the 'nobody' user ID. The...

CVE-2025-68242 NFS: Fix LTP test failures when timestamps are delegated

In the Linux kernel, the following vulnerability has been resolved: NFS: Fix LTP test failures when timestamps are delegated The utimes01 and utime06 tests fail when delegated timestamps are enabled, specifically in subtests that modify the atime and mtime fields using the 'nobody' user ID. The...

CVE-2025-68185

In the Linux kernel, the following vulnerability has been resolved: nfs4setupreaddir: insufficient locking for -dparent-dinode dereferencing Theoretically it's an oopsable race, but I don't believe one can manage to hit it on real hardware; might become doable on a KVM, but it still won't be easy...

Linux kernel 安全漏洞

Linux kernel is the kernel used by Linux, the open source operating system of the Linux Foundation in the United States. A security vulnerability exists in the Linux kernel that stems from NFS not verifying UID and fsuid matches, which could lead to timestamp delegation privilege issues...

Linux kernel 安全漏洞

Linux kernel is the kernel used by Linux, the open source operating system of the Linux Foundation in the United States. A security vulnerability exists in Linux kernel that stems from nfsmatchclient not checking the TLS certificate field, which could lead to client authentication issues...

Ubuntu 14.04 LTS / 16.04 LTS : Linux kernel vulnerabilities (USN-7930-1)

The remote Ubuntu 14.04 LTS / 16.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-7930-1 advisory. Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update...

USN-7930-2: Linux kernel (FIPS) vulnerabilities

Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update corrects flaws in the following subsystems: - Cryptographic API; - ACPI drivers; - Hardware monitoring drivers; - InfiniBand drivers; - MTD block device drivers;...

ROS-20251215-7313

A vulnerability in the cifs.upcall function of the CIFS cifs-utils network file system mount utility package is related to the provisioning of a data element for an erroneous session. Exploitation of the vulnerability could allow an attacker to disclose protected information...