CVE-2026-68143 net: slip: serialize receive against buffer reallocation

In the Linux kernel, the following vulnerability has been resolved: net: slip: serialize receive against buffer reallocation slreallocbufs replaces rbuff and updates buffsize while holding sl-lock. slipreceivebuf reads those fields and writes through rbuff without holding the lock. An MTU change...

CVE-2026-68142

The CVE concerns the Linux kernel geneve driver. A local attacker with CAP_NET_ADMIN in one network namespace can bypass permission checks and modify a geneve network device in a different namespace, potentially enabling unauthorized network configuration changes or disruption. The fix gates the ...

CVE-2026-68142 geneve: require CAP_NET_ADMIN in the device netns for changelink

In the Linux kernel, the following vulnerability has been resolved: geneve: require CAPNETADMIN in the device netns for changelink A tunnel changelink operates on at most two netns, devnetdev and the sticky underlay netns geneve-net. They differ once the device is created in or moved to a netns...

EUVD-2026-55522

In the Linux kernel, the following vulnerability has been resolved: net/iucv: fix use-after-free of a severed iucvpath afiucv queues not-yet-received message notifications on iucv-messageq, each holding a raw pointer to the connection's iucvpath. When the peer severs the connection, iucvseverpath...

CVE-2026-68137

The CVE-2026-68137 issue is a Linux kernel use-after-free in the X.25 networking code (x25_kill_by_neigh). The vulnerability arises when the kernel walks the global X.25 socket list without guaranteeing socket lifetime after dropping x25_list_lock, allowing a concurrent close to remove a socket a...

CVE-2026-68136 net: gro: fix double aggregation of flush-marked skbs

In the Linux kernel, the following vulnerability has been resolved: net: gro: fix double aggregation of flush-marked skbs Commit 0ab03f353d36 "net-gro: Fix GRO flush when receiving a GSO packet." added a flush check to skbgroreceive, but skbgroreceivelist lacks the same validation. As a result,...

EUVD-2026-55511

In the Linux kernel, the following vulnerability has been resolved: ksmbd: defer destroyprevioussession until after NTLM authentication In ntlmauthenticate, destroyprevioussession is called using a user pointer resolved from the client-supplied NTLM blob username field before the NTLMv2 response ...

EUVD-2026-55499

In the Linux kernel, the following vulnerability has been resolved: tcp: challenge ACK for non-exact RST in SYN-RECEIVED The SYN-RECEIVED request-socket path in tcpcheckreq accepts an in-window RST without requiring SEG.SEQ to exactly match RCV.NXT. A non-exact RST therefore removes the request...

Important: Red Hat Security Advisory: osbuild-composer security update

An update for osbuild-composer is now available for Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions and Red Hat Enterprise Linux 8.8 Telecommunications Update Service. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability...

MiracleLinux 8 : ruby:3.3 (AXSA:2026-1503:01)

The remote MiracleLinux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the AXSA:2026-1503:01 advisory. zlib: zlib: Memory corruption via buffer overflow in Zlib::GzipReader CVE-2026-27820 net-imap: Net::IMAP: Arbitrary IMAP command injection via CRLF...

RHEL 8 : osbuild-composer (RHSA-2026:52390)

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2026:52390 advisory. An image building service based on osbuild It is inspired by lorax-composer and exposes the same API. As such, it is a drop-in replacement. Security...

The vulnerability of the ceph_handle_auth_reply() function in the net/ceph/auth.c module of the Linux operating system allows a hacker to compromise the confidentiality and accessibility of the protected information.

The vulnerability of the cephhandleauthreply function in the net/ceph/auth.c module of the Linux kernel is related to the execution of operations outside of the buffer boundaries. Exploiting this vulnerability could allow a malicious actor to compromise the confidentiality and accessibility of...

RHEL 9 : ignition (RHSA-2026:52826)

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2026:52826 advisory. Ignition is a utility used to manipulate systems during the initramfs. This includes partitioning disks, formatting partitions, writing files regula...

Linux Distros Unpatched Vulnerability : CVE-2026-68377

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - net/sched: acttunnelkey: Defer dstrelease to RCU callback Fix a race-condition use-after-free in tunnelkeyreleaseparams. The function releases the metadatadst o...

RHEL 8 : osbuild-composer (RHSA-2026:52389)

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2026:52389 advisory. A service for building customized OS artifacts, such as VM images and OSTree commits, that uses osbuild under the hood. Besides building images for...

Linux Distros Unpatched Vulnerability : CVE-2026-68140

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - net/iucv: fix use-after-free of a severed iucvpath afiucv queues not-yet-received message notifications on iucv-messageq, each holding a raw pointer to the...

RHEL 8 : osbuild-composer (RHSA-2026:52391)

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2026:52391 advisory. A service for building customized OS artifacts, such as VM images and OSTree commits, that uses osbuild under the hood. Besides building images for...

Linux Distros Unpatched Vulnerability : CVE-2026-68138

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - net/sched: serialize qdiscrtablist against concurrent get/put qdiscgetrtab and qdiscputrtab mutate the process-global singly linked list qdiscrtablist and a pla...

The vulnerability of the .NET software platform, related to the unlimited distribution of resources, allows a hacker to cause a service failure.

The vulnerability of the .NET software platform is related to the unlimited distribution of resources. Exploiting this vulnerability can allow a malicious actor, operating remotely, to cause service failures...

The vulnerability in the `net/packet/af_packet.c` component of the Linux operating system allows a hacker to cause a service failure.

The vulnerability in the net/packet/afpacket.c component of the Linux operating system is related to the use of memory after it has been freed. Exploiting this vulnerability can allow an attacker to cause a service failure...