chronomaly

Chronomaly Chronomaly 是一个利用 CVE-2025-38352 的 Android/Linux 内核漏洞利用程序。该漏洞利用专门针对 Linux 内核 v5.10.157 编写，但由于不需要任何特定内核文本偏移量，它应适用于所有有漏洞的 v5.10.x 内核。 我在一个三部分的博客系列文章中详细介绍了该漏洞，从 PoC 一直讲到漏洞利用： 第一部分 - Android 内核漏洞分析与 PoC（野外） 第二部分 - 在没有内核补丁的情况下扩展竞态窗口 第三部分 - 揭示 Chronomaly 构建设置 该漏洞利用仅在 QEMU 中运行的 x8664 Linux 内核...

CVE-2026-45259

sigqueue2 was marked as permitted in capability mode with the introduction of Capsicum in 2011, but the implementation of kernsigqueue did not include a capability mode check restricting signal delivery to the calling process's own PID. A process in capability mode can use sigqueue2 to send signa...

CVE-2026-45259

The FreeBSD kernel contains a vulnerability in the kern_sigqueue implementation where sigqueue(2) lacks a capability mode check. This allows a process running in Capsicum capability mode to bypass sandbox restrictions and send signals to any process it could signal under standard Unix permissions...

CVE-2026-45259 sigqueue(2) missing capability mode restriction

sigqueue2 was marked as permitted in capability mode with the introduction of Capsicum in 2011, but the implementation of kernsigqueue did not include a capability mode check restricting signal delivery to the calling process's own PID. A process in capability mode can use sigqueue2 to send signa...

CVE-2026-45259 sigqueue(2) missing capability mode restriction

sigqueue2 was marked as permitted in capability mode with the introduction of Capsicum in 2011, but the implementation of kernsigqueue did not include a capability mode check restricting signal delivery to the calling process's own PID. A process in capability mode can use sigqueue2 to send signa...

CVE-2026-45259

sigqueue2 was marked as permitted in capability mode with the introduction of Capsicum in 2011, but the implementation of kernsigqueue did not include a capability mode check restricting signal delivery to the calling process's own PID. A process in capability mode can use sigqueue2 to send signa...

EUVD-2026-39963

sigqueue2 was marked as permitted in capability mode with the introduction of Capsicum in 2011, but the implementation of kernsigqueue did not include a capability mode check restricting signal delivery to the calling process's own PID. A process in capability mode can use sigqueue2 to send signa...

CVE-2026-45259: Incorrect Privilege Assignment

sigqueue2 was marked as permitted in capability mode with the introduction of Capsicum in 2011, but the implementation of kernsigqueue did not include a capability mode check restricting signal delivery to the calling process's own PID. A process in capability mode can use sigqueue2 to send signa...

PT-2026-53061

Name of the Vulnerable Software and Affected Versions FreeBSD affected versions not specified Description The implementation of the kern sigqueue function failed to include a capability mode check. This allows a process operating in Capsicum capability mode—a security framework that restricts...

FreeBSD : FreeBSD -- sigqueue(2) missing capability mode restriction (94f20492-6473-11f1-958d-bc241121aa0a)

The version of FreeBSD installed on the remote host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the 94f20492-6473-11f1-958d-bc241121aa0a advisory. sigqueue2 was marked as permitted in capability mode with the introduction of Capsicum in 2011, but the...

FreeBSD -- sigqueue(2) missing capability mode restriction

Problem Description: sigqueue2 was marked as permitted in capability mode with the introduction of Capsicum in 2011, but the implementation of kernsigqueue did not include a capability mode check restricting signal delivery to the calling process's own PID. Impact: A process in capability mode ca...

FreeBSD Security Advisory - FreeBSD-SA-26:28.capsicum

FreeBSD Security Advisory - sigqueue2 was marked as permitted in capability mode with the introduction of Capsicum in 2011, but the implementation of kernsigqueue did not include a capability mode check restricting signal delivery to the calling process's own PID...

FreeBSD-SA-26:28.capsicum

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA512 ============================================================================= FreeBSD-SA-26:28.capsicum Security Advisory The FreeBSD Project Topic: sigqueue2 missing capability mode restriction Category: core Module: capsicum Announced: 2026-06-09...

ASB-A-425282960

In runposixcputimers of posix-cpu-timers.c, there is a possible way to trigger a use-after-free on a sigqueue object due to memory corruption. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation...

kernel: signal: restore the override_rlimit logic

A flaw was found in the Linux kernel. A local user can cause a Denial of Service DoS by exhausting the pending signal queue limit. Due to an issue where resource limits are enforced unconditionally even for signals intended to override them, the kernel fails to allocate necessary resources when...

AZL-53495 CVE-2024-50271 affecting package kernel for versions less than 6.6.64.2-1

In the Linux kernel, the following vulnerability has been resolved: signal: restore the overriderlimit logic Prior to commit d64696905554 "Reimplement RLIMITSIGPENDING on top of ucounts" UCOUNTRLIMITSIGPENDING rlimit was not enforced for a class of signals. However now it's enforced...

UBUNTU-CVE-2024-50271

In the Linux kernel, the following vulnerability has been resolved: signal: restore the overriderlimit logic Prior to commit d64696905554 "Reimplement RLIMITSIGPENDING on top of ucounts" UCOUNTRLIMITSIGPENDING rlimit was not enforced for a class of signals. However now it's enforced...

PT-2024-34099

Name of the Vulnerable Software and Affected Versions: Linux kernel affected versions not specified Description: The issue concerns a behavior change in the Linux kernel related to signal handling, specifically with the override rlimit logic. Prior to a certain commit, the UCOUNT RLIMIT SIGPENDIN...

Linux Kernel 2.4/2.6 Sigqueue Blocking Denial of Service Vulnerability

No description provided by source. source: http://www.securityfocus.com/bid/10096/info A vulnerability has been reported in the Linux Kernel that may permit a malicious local user to affect a system-wide denial of service condition. This issue may be triggered via the Kernel signal queue struct...

Possible DoS on Linux kernel 2.4 and 2.6 using sigqueue overflow.

Hello. We faced a bug ? in Linux kernel causing different misbehaviours on our server. After exploration, it seems that we found some security implications of this issue. When a process exits, it's parent is notified by SIGCHLD, and finished child is kept in process table in "zombie" state until...