Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: net/tcp: Fixed a socket memory leak in the handling of TCP-AO failures for IPv6. When tcpaocopyallmatching fails in tcpv6synrecvsock, the function simply exits. This results in a memory leak: unreferenced object 0xffff0000281a820...

CVE-2026-43384

A flaw was found in the Linux kernel's TCP Authentication Option TCP-AO implementation. This vulnerability arises from a non-constant-time comparison of Message Authentication Codes MACs. A remote attacker could potentially exploit this timing discrepancy to perform a timing attack, which may lea...

JLSEC-2026-436

libcurl can in some circumstances reuse the wrong connection when asked to do an Negotiate-authenticated HTTP or HTTPS request. libcurl features a pool of recent connections so that subsequent requests can reuse an existing connection to avoid overhead. When reusing a connection a range of...

MiracleLinux 9 : iperf3-3.9-13.el9 (AXSA:2024-9259:02)

The remote MiracleLinux 9 host has a package installed that is affected by multiple vulnerabilities as referenced in the AXSA:2024-9259:02 advisory. iperf3: possible denial of service CVE-2023-7250,ESNET-SECADV-2023-0002 iperf3: vulnerable to marvin attack if the authentication option is used...

Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: net/tcp: Fix a NULL pointer dereference when using TCP-AO with TCPREPAIR A NULL pointer dereference can occur in tcpaofinishconnect during a connect system call on a socket with a TCP-AO key added and TCPREPAIR enabled. The...

CVE-2025-39950

In the Linux kernel, the following vulnerability has been resolved: net/tcp: Fix a NULL pointer dereference when using TCP-AO with TCPREPAIR A NULL pointer dereference can occur in tcpaofinishconnect during a connect system call on a socket with a TCP-AO key added and TCPREPAIR enabled. The...

Linux Distros Unpatched Vulnerability : CVE-2025-39950

"The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - net/tcp: Fix a NULL pointer dereference when using TCP-AO with TCPREPAIR A NULL pointer dereference can occur in tcpaofinishconnect during a connect system cal...

EUVD-2025-32388

In the Linux kernel, the following vulnerability has been resolved: net/tcp: Fix a NULL pointer dereference when using TCP-AO with TCPREPAIR A NULL pointer dereference can occur in tcpaofinishconnect during a connect system call on a socket with a TCP-AO key added and TCPREPAIR enabled. The...

CVE-2025-39950

In the Linux kernel, the following vulnerability has been resolved: net/tcp: Fix a NULL pointer dereference when using TCP-AO with TCPREPAIR A NULL pointer dereference can occur in tcpaofinishconnect during a connect system call on a socket with a TCP-AO key added and TCPREPAIR enabled. The...

UBUNTU-CVE-2025-39950

In the Linux kernel, the following vulnerability has been resolved: net/tcp: Fix a NULL pointer dereference when using TCP-AO with TCPREPAIR A NULL pointer dereference can occur in tcpaofinishconnect during a connect system call on a socket with a TCP-AO key added and TCPREPAIR enabled. The...

CVE-2025-39950 net/tcp: Fix a NULL pointer dereference when using TCP-AO with TCP_REPAIR

In the Linux kernel, the following vulnerability has been resolved: net/tcp: Fix a NULL pointer dereference when using TCP-AO with TCPREPAIR A NULL pointer dereference can occur in tcpaofinishconnect during a connect system call on a socket with a TCP-AO key added and TCPREPAIR enabled. The...

CVE-2025-39950

CVE-2025-39950 pertains to the Linux kernel: a NULL pointer dereference can occur in net/tcp when TCP-AO is used with TCP_REPAIR during connect(), due to dereferencing skb without null-check in tcp_ao_finish_connect(). The vulnerability affects code paths where a TCP-AO key is present and TCP_REP...

CVE-2025-39852

In the Linux kernel, the following vulnerability has been resolved: net/tcp: Fix socket memory leak in TCP-AO failure handling for IPv6 When tcpaocopyallmatching fails in tcpv6synrecvsock it just exits the function. This ends up causing a memory-leak: unreferenced object 0xffff0000281a8200 size...

DEBIAN-CVE-2025-39852

In the Linux kernel, the following vulnerability has been resolved: net/tcp: Fix socket memory leak in TCP-AO failure handling for IPv6 When tcpaocopyallmatching fails in tcpv6synrecvsock it just exits the function. This ends up causing a memory-leak: unreferenced object 0xffff0000281a8200 size...

UBUNTU-CVE-2025-39852

In the Linux kernel, the following vulnerability has been resolved: net/tcp: Fix socket memory leak in TCP-AO failure handling for IPv6 When tcpaocopyallmatching fails in tcpv6synrecvsock it just exits the function. This ends up causing a memory-leak: unreferenced object 0xffff0000281a8200 size...

CVE-2025-39852 net/tcp: Fix socket memory leak in TCP-AO failure handling for IPv6

In the Linux kernel, the following vulnerability has been resolved: net/tcp: Fix socket memory leak in TCP-AO failure handling for IPv6 When tcpaocopyallmatching fails in tcpv6synrecvsock it just exits the function. This ends up causing a memory-leak: unreferenced object 0xffff0000281a8200 size...

CVE-2025-39852

CVE-2025-39852: Linux kernel TCP stack IPv6 TCP-AO path leaks memory when tcp_v6_syn_recv_sock() exits on error due to missing error-handling cleanup. The linked Astra/OpenSUSE advisories confirm the fix adds inet_csk_prepare_forced_close() and tcp_done() (as in the IPv4 path) to ensure the new s...

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 improper handling of TCP-AO failures, which could lead to a memory leak in IPv6 sockets...

Linux Distros Unpatched Vulnerability : CVE-2025-39852

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - net/tcp: Fix socket memory leak in TCP-AO failure handling for IPv6 When tcpaocopyallmatching fails in tcpv6synrecvsock it just exits the function. This ends up...

PT-2025-40646

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A flaw exists in the Linux kernel related to a NULL pointer dereference within the tcp ao finish connect function when TCP-AO is used in conjunction with TCP REPAIR. This issue can occur...