openSUSE 16 Security Update : nsd (openSUSE-SU-2026:21502-1)

The remote openSUSE 16 host has a package installed that is affected by multiple vulnerabilities as referenced in the openSUSE-SU-2026:21502-1 advisory. Changes in nsd: - Update nsd.keyring - update to 4.14.3: https://github.com/NLnetLabs/nsd/blob/NSD4143REL/doc/ChangeLog CVE-2026-12490: Bypass o...

OPENSUSE-SU-2026:21502-1 Security update for nsd

This update for nsd fixes the following issues: Changes in nsd: - Update nsd.keyring - update to 4.14.3: https://github.com/NLnetLabs/nsd/blob/NSD4143REL/doc/ChangeLog CVE-2026-12490: Bypass of client certificate verification with transfer over TLS bsc1269563 CVE-2026-12246: Out of bounds stack...

apparmor: mediate the implicit connect of TCP fast open sendmsg

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SUSE CVE-2026-63828

In the Linux kernel, the following vulnerability has been resolved: apparmor: mediate the implicit connect of TCP fast open sendmsg sendmsg/sendto with MSGFASTOPEN is a combination of connect2 and write2: it opens the connection in the SYN. apparmorsocketsendmsg only checks AAMAYSEND, so a profil...

CVE-2026-63828

In the Linux kernel, the following vulnerability has been resolved: apparmor: mediate the implicit connect of TCP fast open sendmsg sendmsg/sendto with MSGFASTOPEN is a combination of connect2 and write2: it opens the connection in the SYN. apparmorsocketsendmsg only checks AAMAYSEND, so a profil...

CVE-2026-63828 apparmor: mediate the implicit connect of TCP fast open sendmsg

In the Linux kernel, the following vulnerability has been resolved: apparmor: mediate the implicit connect of TCP fast open sendmsg sendmsg/sendto with MSGFASTOPEN is a combination of connect2 and write2: it opens the connection in the SYN. apparmorsocketsendmsg only checks AAMAYSEND, so a profil...

CVE-2026-63828

In CVE-2026-63828, the Linux kernel patch fixes an AppArmor mediation gap for MSG_FASTOPEN: sendmsg/sendto could trigger an implicit connect, allowing a confined task to open an outbound TCP/MPTCP connection even if connect would be denied. The vulnerability arises because apparmor_socket_sendmsg...

CVE-2026-63828 apparmor: mediate the implicit connect of TCP fast open sendmsg

In the Linux kernel, the following vulnerability has been resolved: apparmor: mediate the implicit connect of TCP fast open sendmsg sendmsg/sendto with MSGFASTOPEN is a combination of connect2 and write2: it opens the connection in the SYN. apparmorsocketsendmsg only checks AAMAYSEND, so a profil...

EUVD-2026-45494

In the Linux kernel, the following vulnerability has been resolved: apparmor: mediate the implicit connect of TCP fast open sendmsg sendmsg/sendto with MSGFASTOPEN is a combination of connect2 and write2: it opens the connection in the SYN. apparmorsocketsendmsg only checks AAMAYSEND, so a profil...

CVE-2026-63828

In the Linux kernel, the following vulnerability has been resolved: apparmor: mediate the implicit connect of TCP fast open sendmsg sendmsg/sendto with MSGFASTOPEN is a combination of connect2 and write2: it opens the connection in the SYN. apparmorsocketsendmsg only checks AAMAYSEND, so a profil...

Linux Distros Unpatched Vulnerability : CVE-2026-63828

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - apparmor: mediate the implicit connect of TCP fast open sendmsg sendmsg/sendto with MSGFASTOPEN is a combination of connect2 and write2: it opens the connection...

CVE-2026-63828: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: apparmor: mediate the implicit connect of TCP fast open sendmsg sendmsg/sendto with MSGFASTOPEN is a combination of connect2 and write2: it opens the connection in the SYN. apparmorsocketsendmsg only checks AAMAYSEND, so a profil...

OESA-2026-2076 kernel security update

The Linux Kernel, the operating system core itself. Security Fixes: In the Linux kernel, the following vulnerability has been resolved: tcp: Clear tcpsksk-fastopenrsk in tcpdisconnect. syzbot reported the splat below where a socket had tcpsksk-fastopenrsk in the TCPESTABLISHED state. 0 syzbot...

Unity Linux 20.1050e / 20.1070e Security Update: kernel (UTSA-2026-011081)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-011081 advisory. In the Linux kernel, the following vulnerability has been resolved: tcp: Don't call reqskfastopenremove in tcpconnrequest. syzbot reported the splat below in...

CVE-2026-39418

CVE-2026-39418 MaxKB is affected in versions ≤ 2.7.1 where the sandbox’s network protection can be bypassed. An authenticated user with tool-editing permissions can reach internal services blocked by the sandbox by using socket.sendto() with the MSG_FASTOPEN flag. MaxKB’s sandbox relies on LD_PRE...

SUSE-SU-2026:20558-1 Security update for the Linux Kernel RT (Live Patch 1 for SUSE Linux Enterprise 16)

This update for the SUSE Linux Enterprise kernel 6.12.0-160000.6.1 fixes one security issue The following security issue was fixed: - CVE-2025-40186: tcp: Don't call reqskfastopenremove in tcpconnrequest bsc1253439...

SUSE-SU-2026:0543-1 Security update for the Linux Kernel (Live Patch 7 for SUSE Linux Enterprise 15 SP6)

This update for the SUSE Linux Enterprise kernel 6.4.0-150600.23.33 fixes various security issues The following security issues were fixed: - CVE-2025-38111: net/mdiobus: Fix potential out-of-bounds read/write access bsc1249455. - CVE-2025-38352: posix-cpu-timers: fix race between...

Linux kernel TCP Fastopen Buffer Overflow DoS

The vulnerability of the function tcpfastopenactivedisableofocheck in the net/ipv4/tcpfastopen.c module, which is part of the IPv4 protocol implementation in Linux kernel, relates to the reutilization of previously freed memory. Exploiting this vulnerability could allow an attacker to compromise...

Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: TCP: Use dstdevrcu in tcpfastopenactivedisableofocheck. Use RCU to avoid a pair of atomic operations and a potential UAF on dstdev-flags...

Linux Kernel Security Vulnerabilities

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 the presence of a null pointer dereference during fast open early fallback, which could lead to a null pointer...