kernel: udp: fix potential use-after-free in tunnel segmentation

A flaw was found in the Linux kernel's UDP User Datagram Protocol tunnel segmentation. This vulnerability arises when the system attempts to process network packets, specifically in the skbudptunnelsegment function. An attacker could potentially exploit a use-after-free condition, where the syste...

CVE-2026-23111-PoC

CVE-2026-23111exploit CVE-2026-23111 — Linux Kernel nftables UAF → LPE A working local-privilege-escalation exploit for CVE-2026-23111 , a use-after-free in the Linux kernel nftables subsystem. Tested on linux-6.12.69 x86-64. Target requirements The exploit assumes a target kernel built with:...

CVE-2026-98212

A flaw was found in the Linux kernel's MultiMediaCard MMC host software queue. A local user could exploit a use-after-free vulnerability when pending retry operations are not cancelled before device removal, allowing tasks to access memory after it has been released. This issue can lead to a Deni...

BIT-PYTHON-MIN-2026-19445 Use-after-free of a server-side SSLContext when sni_callback switches contexts

A remote, unauthenticated TLS client can make a server crash or call through a freed pointer if its snicallback assigns a different context to SSLSocket.context the documented way to select a certificate per server name and nothing else keeps the original ssl.SSLContext alive. Typical cases are...

BIT-PYTHON-2026-19445 Use-after-free of a server-side SSLContext when sni_callback switches contexts

A remote, unauthenticated TLS client can make a server crash or call through a freed pointer if its snicallback assigns a different context to SSLSocket.context the documented way to select a certificate per server name and nothing else keeps the original ssl.SSLContext alive. Typical cases are...

BIT-LIBPYTHON-2026-19445 Use-after-free of a server-side SSLContext when sni_callback switches contexts

A remote, unauthenticated TLS client can make a server crash or call through a freed pointer if its snicallback assigns a different context to SSLSocket.context the documented way to select a certificate per server name and nothing else keeps the original ssl.SSLContext alive. Typical cases are...

kernel: udp: fix potential use-after-free in tunnel segmentation

A flaw was found in the Linux kernel's UDP User Datagram Protocol tunnel segmentation. This vulnerability arises when the system attempts to process network packets, specifically in the skbudptunnelsegment function. An attacker could potentially exploit a use-after-free condition, where the syste...

Important: Red Hat Security Advisory: kernel security update

An update for kernel 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 Scoring Syst...

Security Bulletin:Vulnerabilities exists in callhome of IBM Netezza Appliance

Summary Vulnerabilities identified in IBM Netezza Appliance have been addressed in security patch ina-release-callhomeimage-1.0.2.3. Vulnerability Details CVEID:CVE-2022-2042 DESCRIPTION: Use After Free in GitHub repository vim/vim prior to 8.2. CWE:CWE-416: Use After Free CVSS Source: IBM X-Forc...

CVE-2026-98211

A flaw was found in the Linux kernel's MultiMediaCard MMC host controller interface driver. When the device is removed, the driver fails to cancel pending delayed timeout tasks, allowing scheduled work to access memory that has already been released. A local user capable of triggering device...

CVE-2026-98253

A flaw was found in the Linux kernel's RDMA Remote Direct Memory Access subsystem. A local attacker can cause a Denial of Service DoS or memory corruption by exploiting a race condition in the User Connection Manager Access ucma component. This issue occurs when concurrent multicast join requests...

CVE-2026-98210

A flaw was found in the Linux kernel's mxcmmc host driver. A local user with administrative privileges could trigger this vulnerability by unbinding or removing the device, leading to a Denial of Service DoS or potential arbitrary code execution. The driver fails to cancel active background tasks...

CVE-2026-56154

A use-after-free flaw was found in the modrewrite module of Apache HTTP Server when evaluating URL lookahead expressions that reference HTTP request headers, such as %LA-U:HTTP:.... A remote attacker may be able to trigger invalid memory access in a server using an affected rewrite configuration,...

kernel: blk-cgroup: fix UAF in __blkcg_rstat_flush()

A flaw was found in the Linux kernel's block input/output control group blk-cgroup component. This vulnerability, a Use-After-Free UAF, occurs when multiple block control groups are released at the same time. A race condition allows one group to remove another's entries while it is still in use,...

kernel: udp: fix potential use-after-free in tunnel segmentation

A flaw was found in the Linux kernel's UDP User Datagram Protocol tunnel segmentation. This vulnerability arises when the system attempts to process network packets, specifically in the skbudptunnelsegment function. An attacker could potentially exploit a use-after-free condition, where the syste...

CVE-2026-54107

Quando ValidateHwnd Não É uma Barreira: Causa-Raiz da CVE-2026-54107 Um use-after-free no gerenciamento do ciclo de vida de janelas em win32kfull.sys — como o encontrei, como me convenci de que era real e como o processo do MSRC realmente se parecia do lado do pesquisador. Eram quase 2 da manhã...

K000163627: Linux kernel vulnerabilities CVE-2026-43276, CVE-2026-43329, CVE-2026-45898 and CVE-2026-46090

Security Advisory Description CVE-2026-43276 In the Linux kernel, the following vulnerability has been resolved: net: mana: Fix double destroyworkqueue on service rescan PCI path While testing corner cases in the driver, a use-after-free crash was found on the service rescan PCI path. When...

K000163626: Multiple Linux kernel vulnerabilities

Security Advisory Description CVE-2026-46242 In the Linux kernel, the following vulnerability has been resolved: eventpoll: fix epremove struct eventpoll / struct file UAF epremove via epremovefile cleared file-fep under file-flock but then kept using @file inside the critical section isfileepoll...

cve-2026-19445-sni-uaf

abraxaslabs.tech · github.com/abraxas · @abraxasnull · [email protected] · cve-2026-19445-sni-uaf cve-2026-19445-sni-uaf CPython ssl - Python Software Foundation A TLS server that mints an SSLContext per connection, sets snicallback, and assigns sslobj.context = otherctx can drop the last...

K000163623: Multiple Linux kernel vulnerabilities

Security Advisory Description CVE-2026-46113 In the Linux kernel, the following vulnerability has been resolved: KVM: x86: Fix shadow paging use-after-free due to unexpected GFN The shadow MMU computes GFNs for direct shadow pages using sp-gfn plus the SPTE index. This assumption breaks for shado...