DirtyFrag-go

dirtyfrag-go 2つのバグ。1つのシェル。ディスク書き込みなし。 dirtyfrag（CVE-2026-43284 / CVE-2026-43500）のGo移植版です。 動作の仕組み（要約） このバグクラスはLinuxカーネルのXFRMサブシステムに存在します。ファイルページがパイプにspliceされ、その後ESP暗号化ソケットに送られると、カーネルはESPペイロードをその場で復号化します - ソースファイルのページキャッシュページに直接書き込まれます。ファイルは読み取り専用です。しかしページキャッシュはそうではありません。...

Ubuntu 24.04 LTS / 26.04 LTS : Linux kernel vulnerabilities (USN-8816-1)

The remote Ubuntu 24.04 LTS / 26.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-8816-1 advisory. Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update...

kernel: xfrm: ah6: validate routing header segments_left

A flaw was found in the Linux kernel's xfrm subsystem, specifically within the AH6 Authentication Header for IPv6 module. The ipv6rearrangerthdr function does not properly validate the segmentsleft field in routing headers when processing raw IPv6 HDRINCL packets. This oversight allows an attacke...

kernel: xfrm: ah6: validate routing header segments_left

A flaw was found in the Linux kernel's xfrm subsystem, specifically within the AH6 Authentication Header for IPv6 module. The ipv6rearrangerthdr function does not properly validate the segmentsleft field in routing headers when processing raw IPv6 HDRINCL packets. This oversight allows an attacke...

AZL-99564 CVE-2026-80848 affecting package kernel 6.6.150.1-1

In the Linux kernel, the following vulnerability has been resolved: xfrm: espintcp: fix UAF during close ZDI reported and analyzed a race condition during close for espintcp sockets: espintcpclose frees emsg-skb via kfreeskb without holding any socket lock. Concurrently, the xfrmtransreinject wor...

PT-2026-85721

In the Linux kernel, the following vulnerability has been resolved: xfrm: fix xfrm state construct auth-trunc leak attach auth trunc can allocate x-aalg while leaving x-props.aalgo at zero when the selected auth algorithm has no sadb alg id. One real case is cmacaes. xfrm state construct then...

Unity Linux 20.1050a Security Update: kernel (UTSA-2026-098800)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-098800 advisory. In the Linux kernel, the following vulnerability has been resolved: xfrm: hold dev ref until after transportfinish NFHOOK After async crypto completes, xfrminputresu...

kernel: xfrm: defensively unhash xfrm_state lists in __xfrm_state_delete

A flaw was found in the Linux kernel's xfrm IPSec framework subsystem. This vulnerability, a use-after-free, occurs when the system incorrectly manages memory related to security policies, specifically during the deletion of xfrmstate lists. An attacker with local access could exploit this flaw b...

kernel: xfrm: defensively unhash xfrm_state lists in __xfrm_state_delete

A flaw was found in the Linux kernel's xfrm IPSec framework subsystem. This vulnerability, a use-after-free, occurs when the system incorrectly manages memory related to security policies, specifically during the deletion of xfrmstate lists. An attacker with local access could exploit this flaw b...

kernel: xfrm: defensively unhash xfrm_state lists in __xfrm_state_delete

A flaw was found in the Linux kernel's xfrm IPSec framework subsystem. This vulnerability, a use-after-free, occurs when the system incorrectly manages memory related to security policies, specifically during the deletion of xfrmstate lists. An attacker with local access could exploit this flaw b...

CVE-2026-72463

A flaw was found in the Linux kernel's xfrm IP eXtensible FRamework for IPsec subsystem. This vulnerability occurs during asynchronous resumption where the xfrmrcvcb function can modify a network device without properly managing its reference count. This improper handling leads to a use-after-fre...

CVE-2026-72450

A flaw was found in the Linux kernel's xfrm subsystem. This vulnerability, a shift-out-of-bounds error, occurs when an unspecified address family AFUNSPEC selector with a large prefix length is incorrectly matched against an IPv4 flow. An attacker could potentially exploit this by sending special...

CVE-2026-72137

A flaw was found in the xfrm subsystem of the Linux kernel, specifically within the natkeepalive component. This vulnerability occurs when the natkeepalivesend function attempts to free a network packet buffer skb that may have already been freed by the networking stack. This double free can lead...

Linux Distros Unpatched Vulnerability : CVE-2026-72137

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - In the Linux kernel, the following vulnerability has been resolved: xfrm: natkeepalive: avoid double free on send error natkeepalivesend frees the keepalive skb...

Unity Linux 20.1050e Security Update: kernel (UTSA-2026-102129)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-102129 advisory. In the Linux kernel, the following vulnerability has been resolved: xfrm: clear trailing padding in buildpolexpire buildexpire clears the trailing padding bytes of...

Unity Linux 20.1050e Security Update: kernel (UTSA-2026-101968)

"The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-101968 advisory. In the Linux kernel, the following vulnerability has been resolved: net: afkey: initialize algkeylen for IPComp states pfkeymsg2xfrmstate handles the IPComp...

Linux Distros Unpatched Vulnerability : CVE-2026-72450

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - xfrm: validate selector family and prefixlen during match syzbot reported a shift-out-of-bounds in xfrmselectormatch due to AFUNSPEC selector with large prefixl...

Unity Linux 20.1050e Security Update: kernel (UTSA-2026-099775)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-099775 advisory. A flaw was found in the Linux kernels IP framework for transforming packets XFRM subsystem. This issue may allow a malicious user with CAPNETADMIN privileges to caus...

Unity Linux 20.1050a Security Update: kernel (UTSA-2026-100497)

"The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-100497 advisory. In the Linux kernel, the following vulnerability has been resolved: net: afkey: initialize algkeylen for IPComp states pfkeymsg2xfrmstate handles the IPComp...

CVE-2026-72463

CVE-2026-72463 (Linux kernel xfrm): The flaw lets a use-after-free occur in xfrm async resumption when xfrm_rcv_cb changes skb->dev to a tunnel device without taking a reference, risking tunnel dev UAF and orig device refcount leaks. The patch stashs the original skb->dev and extends RCU pr...