CVE-2023-0386

在 Linux 内核中发现了一个缺陷：在 Linux 内核的 OverlayFS 子系统中，当用户将具有 capabilities 的文件从 nosuid 挂载点复制到另一个挂载点时，存在对具有 capabilities 的 setuid 文件执行的未授权访问。此 uid 映射错误允许本地用户在系统上提升其权限。 参见：https://ubuntu.com/security/CVE-2023-0386 编译 root@kitploit: make all 使用 启动两个终端，并在第一个终端中输入 root@kitploit: ./fuse ./ovlcap/lower ./gc...

docker_lightman_exploit

Docker Lightman 漏洞利用 Docker CVE-2022-37708。 此漏洞利用依赖于 UNIX 文件系统在 Docker 共享文件时设置 UID 和 GID 的方式，这些文件在运行 Docker 的宿主机与被 Docker 容器内运行的客户端之间共享，同时也依赖于进程 ID 所有权的工作原理。 问题简述 Docker 将客户端内共享的文件 ID 直接映射到“宿主机系统”上的一个私有（且受保护的）目录（例如 /var/lib/docker/volumes）。 对此路径的目录遍历已被正确限制，这不是本漏洞的利用点。 这些文件具有在托管于 Docker...

UBUNTU-CVE-2026-72379

In the Linux kernel, the following vulnerability has been resolved: fs: refuse OTMPFILE creation with an unmapped fsuid or fsgid vfstmpfile never checked that the caller's fsuid and fsgid map into the filesystem. On an idmapped mount whose idmapping does not cover the caller's fsu,gid, the -tmpfi...

CVE-2026-72379 fs: refuse O_TMPFILE creation with an unmapped fsuid or fsgid

In the Linux kernel, the following vulnerability has been resolved: fs: refuse OTMPFILE creation with an unmapped fsuid or fsgid vfstmpfile never checked that the caller's fsuid and fsgid map into the filesystem. On an idmapped mount whose idmapping does not cover the caller's fsu,gid, the -tmpfi...

CVE-2026-72379

The CVE-2026-72379 issue is in the Linux kernel: vfs_tmpfile() did not verify the caller’s fsuid/fsGid mappings, allowing O_TMPFILE creation on idmapped mounts when mapping does not cover the caller. The fix adds a missing fsuidgid_has_mapping() check so that O_TMPFILE creation is blocked unless ...

CVE-2026-72379 fs: refuse O_TMPFILE creation with an unmapped fsuid or fsgid

In the Linux kernel, the following vulnerability has been resolved: fs: refuse OTMPFILE creation with an unmapped fsuid or fsgid vfstmpfile never checked that the caller's fsuid and fsgid map into the filesystem. On an idmapped mount whose idmapping does not cover the caller's fsu,gid, the -tmpfi...

CVE-2026-53798 rsync < 3.5.0 Privilege Confusion via name-converter uid/gid mapping

rsync before 3.5.0 contains a privilege confusion vulnerability in the name-converter subprocess uid/gid mapping that allows local attackers to cause transferred files to be owned by root by influencing name-converter responses to return empty values. When the name-converter subprocess returns an...

Exploit for Improper Ownership Management in Debian Debian_Linux

A flaw was found in the Linux kernel, where unauthorized access...

Debian dla-3446 : linux-config-5.10 - security update

The remote Debian 10 host has packages installed that are affected by multiple vulnerabilities as referenced in the dla-3446 advisory. ------------------------------------------------------------------------- Debian LTS Advisory DLA-3446-1 [email protected]...

Ubuntu 20.04 LTS : Linux kernel (Intel IoTG) vulnerabilities (USN-6134-1)

The remote Ubuntu 20.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-6134-1 advisory. It was discovered that the Traffic-Control Index TCINDEX implementation in the Linux kernel did not properly perform filter deactivation in some...

RHEL 9 : kernel-rt (RHSA-2023:1980)

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2023:1980 advisory. The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements. Securi...

RHEL 9 : kernel (RHSA-2023:1970)

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2023:1970 advisory. The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fixes: kernel: FUSE filesystem low-privileged user...

RHEL 9 : kpatch-patch (RHSA-2023:1681)

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2023:1681 advisory. This is a kernel live patch module which is automatically loaded by the RPM post-install script to modify the code of a running kernel. Security Fixe...

RHEL 9 : kernel-rt (RHSA-2023:1691)

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2023:1691 advisory. The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements. Securi...

kernel: FUSE filesystem low-privileged user privileges escalation

A flaw was found in the Linux kernel, where unauthorized access to the execution of the setuid file with capabilities was found in the Linux kernel’s OverlayFS subsystem in how a user copies a capable file from a nosuid mount into another mount. This uid mapping bug allows a local user to escalat...

AlmaLinux 8 : kpatch-patch (ALSA-2023:1659)

The remote AlmaLinux 8 host has a package installed that is affected by multiple vulnerabilities as referenced in the ALSA-2023:1659 advisory. - A stack overflow flaw was found in the Linux kernel's SYSCTL subsystem in how a user changes certain kernel parameters and variables. This flaw allows a...

RHEL 8 : kernel (RHSA-2023:1554)

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2023:1554 advisory. The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fixes: ALSA: pcm: Move rwsem lock inside...

RHEL 8 : kernel (RHSA-2023:1566)

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2023:1566 advisory. The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fixes: kernel: stack overflow in doprocdointv...

kernel: FUSE filesystem low-privileged user privileges escalation

A flaw was found in the Linux kernel, where unauthorized access to the execution of the setuid file with capabilities was found in the Linux kernel’s OverlayFS subsystem in how a user copies a capable file from a nosuid mount into another mount. This uid mapping bug allows a local user to escalat...

kernel: FUSE filesystem low-privileged user privileges escalation

A flaw was found in the Linux kernel, where unauthorized access to the execution of the setuid file with capabilities was found in the Linux kernel’s OverlayFS subsystem in how a user copies a capable file from a nosuid mount into another mount. This uid mapping bug allows a local user to escalat...