docker_cve-2015-2925

Docker + CVE-2015-2925 = 从 --volume 逃逸 Linux 近期的一个漏洞 已知大约半年（公开几个月），它使得从绑定挂载（bind mounts）中逃逸成为可能。特别是在 Docker 的情况下，可以从通过 --volume 选项挂载的目录内部逃逸到对应宿主机的文件系统。 Docker 安全团队 已经知晓 该问题，并允许发布此内容以引起公众关注。 感谢 Jann Horn 指出这一点，基本上我只是复现了它。 缓解措施 以下任一项都足以缓解： 启用 AppArmor 的内核和 AppArmor Docker 配置文件 启用 SELinux 的内核和 SELin...

Astra Linux – Vulnerability in Linux

In the Linux kernel, the following vulnerability has been resolved: tipc: skblinearize the head skb when reassembling msgs It’s not a good idea to append the frag skb to a skb’s fraglist if the fraglist already contains skbs from elsewhere. For example, this frag skb was created by pskbcopy, wher...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1, and Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: unshare: fixed the handling of unsharefs There’s an unpleasant corner case in unshare2: when CLONENEWNS is used in the flags, and current-fs hasn’t been shared at all; in that case, copymntns passes current-fs instead of a privat...

METABASE-RCE-CVE-2023-38646-

METABASE-RCE-CVE-2023-38646- 根据上述信息，要获取机器或系统的 root 用户，此命令和文件将进入 root 用户。 你可以直接运行此命令，或者作为文件运行并执行。 命令： $unshare -rm sh -c "mkdir l u w m && cp /u/b/p 3 l/; setcap capsetuid+eip l/python3;mount -t overlay overlay -o rw,lowerdir=l,upperdir=u,workdir=w m && touch m/;" && u/python3 -c 'import os;import...

CVE-2022-1015

CVE-2022-1015 id uid=1000d gid=1000d groups=1000d ./poc + unshare done table created: leaktable chain created: leakchain rule added Listening on port 9999 table created: leaktable chain created: leakchain rule added Listening on port 9999 kerneladdress: ffffffffb4a00000 kernelstack:...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1, and Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: mm/hugetlb: Fixed the issue where hugepmdunshare caused a race condition with GUP-fast. The hugepmdunshare function releases a reference to a page table that might have previously been shared across processes. This could...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1, and Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: mm/hugetlb: Un-sharing of page tables occurs during VMA splitting, not before. Currently, splitvma triggers the un-sharing of hugetlb page tables through vmops-maysplit. This occurs before the VMA lock and rmap locks are taken –...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: The issue with bitmap corruption when using CLOSERANGEUNSHARE in closerange has been fixed. The function copyfdbitmapsnew, old, count is expected to copy the first count/BITSPERLONG bits from old-fullfdsbits and fill the rest wit...

Linux Distros Unpatched Vulnerability : CVE-2026-80929

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - sysctl: move the cadpid entry from pidtable to kernreboottable cadpid is global, and killcadpid is only used in the root namespace. However, due to...

CVE-2026-80929

In the Linux kernel, the following vulnerability has been resolved: sysctl: move the "cadpid" entry from pidtable to kernreboottable cadpid is global, and killcadpid is only used in the root namespace. However, due to pidtablerootpermissions, a non-root user can unshare pid/user namespaces and...

CVE-2026-80929

CVE-2026-80929 affects the Linux kernel's sysctl subsystem . The cad_pid entry, which controls the PID killed on control-alt-delete and is logically global to the root namespace, was placed in pid_table[] with permissions governed by pid_table_root_permissions(). This allowed a non-root local use...

CVE-2026-80929

In the Linux kernel, the following vulnerability has been resolved: sysctl: move the "cadpid" entry from pidtable to kernreboottable cadpid is global, and killcadpid is only used in the root namespace. However, due to pidtablerootpermissions, a non-root user can unshare pid/user namespaces and...

Unity Linux 20.1050a Security Update: kernel (UTSA-2026-100584)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-100584 advisory. In the Linux kernel, the following vulnerability has been resolved: arm64: tlb: Flush walk cache when unsharing PMD tables When hugepmdunshare is called to unshare a...

UBUNTU-CVE-2026-68294

In the Linux kernel, the following vulnerability has been resolved: net: qrtr: restrict socket creation to the initial network namespace QRTR keeps its entire port and node state in module-global variables that are not partitioned per network namespace: qrtrlocalnid is a single global node id...

Linux Distros Unpatched Vulnerability : CVE-2026-68294

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - net: qrtr: restrict socket creation to the initial network namespace QRTR keeps its entire port and node state in module-global variables that are not partition...

Oracle Linux 10 : kernel (ELSA-2026-47017)

The remote Oracle Linux 10 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2026-47017 advisory. - ipv6: fix possible UAF in icmpv6rcv CKI Backport Bot RHEL-192215 CVE-2026-53006 - tipc: fix double-free in tipcbufappend CKI Backport Bot RHEL-1921...

SUSE CVE-2026-63875

In the Linux kernel, the following vulnerability has been resolved: arm64: tlb: Flush walk cache when unsharing PMD tables When hugepmdunshare is called to unshare a PMD table, the tlbunsharepmdptdesc function sets tlb-unsharedtables=true but the aarch64 tlbflush only checked tlb-freedtables to...

Linux Distros Unpatched Vulnerability : CVE-2026-63875

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - arm64: tlb: Flush walk cache when unsharing PMD tables When hugepmdunshare is called to unshare a PMD table, the tlbunsharepmdptdesc function sets...

kernel: rxrpc: Fix potential UAF after skb_unshare() failure

A flaw was found in the Linux kernel's rxrpc subsystem. This vulnerability arises when the system attempts to unshare a packet buffer, and the operation fails due to an allocation issue. This failure can lead to a Use-After-Free UAF condition, where the system attempts to access memory that has...

curl: CURLSHOPT_UNSHARE race can cause UAF in shared SSL session cache during HTTPS transfer

Summary CURLSHOPTUNSHARE can free a shared SSL session cache while another thread is starting a normal HTTPS transfer with the same share handle. The failing transfer reaches the cache through curleasyperform, during the OpenSSL handshake. libcurl appears to try to reject this kind of lifetime...