kernel: netfilter: conntrack: serialize hash resizes and cleanups

A vulnerability was found in the Linux kernel’s netfilter and conntrack module, occurring during the resizing and cleanup of hash tables used for connection tracking. The kernel's nfctiteratecleanup function fails to efficiently handle simultaneous hash resizes and cleanups, leading to prolonged...

SUSE CVE-2024-41040

In the Linux kernel, the following vulnerability has been resolved: net/sched: Fix UAF when resolving a clash KASAN reports the following UAF: BUG: KASAN: slab-use-after-free in tcfctflowtableprocessconn+0x12b/0x380 actct Read of size 1 at addr ffff888c07603600 by task handler130/6469 Call Trace:...

DEBIAN-CVE-2024-41040

In the Linux kernel, the following vulnerability has been resolved: net/sched: Fix UAF when resolving a clash KASAN reports the following UAF: BUG: KASAN: slab-use-after-free in tcfctflowtableprocessconn+0x12b/0x380 actct Read of size 1 at addr ffff888c07603600 by task handler130/6469 Call Trace:...

DEBIAN-CVE-2024-38558

In the Linux kernel, the following vulnerability has been resolved: net: openvswitch: fix overwriting ct original tuple for ICMPv6 OVSPACKETCMDEXECUTE has 3 main attributes: - OVSPACKETATTRKEY - Packet metadata in a netlink format. - OVSPACKETATTRPACKET - Binary packet content. -...

SUSE CVE-2024-27415

In the Linux kernel, the following vulnerability has been resolved: netfilter: bridge: confirm multicast packets before passing them up the stack conntrack nfconfirm logic cannot handle cloned skbs referencing the same nfconn entry, which will happen for multicast broadcast frames on bridges...

UBUNTU-CVE-2024-27415

In the Linux kernel, the following vulnerability has been resolved: netfilter: bridge: confirm multicast packets before passing them up the stack conntrack nfconfirm logic cannot handle cloned skbs referencing the same nfconn entry, which will happen for multicast broadcast frames on bridges...

UBUNTU-CVE-2024-26921

In the Linux kernel, the following vulnerability has been resolved: inet: inetdefrag: prevent sk release while still in use iplocalout and other functions can pass skb-sk as function argument. If the skb is a fragment and reassembly happens before such function call returns, the sk must not be...

DEBIAN-CVE-2024-26851

In the Linux kernel, the following vulnerability has been resolved: netfilter: nfconntrackh323: Add protection for bmp length out of range UBSAN load reports an exception of BRK5515 SHIFTISSUE:Bitwise shifts that are out of bounds for their data type. vmlinux getbitmapb=75 + 712 vmlinux...

UBUNTU-CVE-2021-47199

In the Linux kernel, the following vulnerability has been resolved: net/mlx5e: CT, Fix multiple allocations and memleak of mod acts CT clear action offload adds additional mod hdr actions to the flow's original mod actions in order to clear the registers which hold ctstate. When such flow also...

UBUNTU-CVE-2024-26673

In the Linux kernel, the following vulnerability has been resolved: netfilter: nftct: sanitize layer 3 and 4 protocol number in custom expectations - Disallow families other than NFPROTOIPV4,IPV6,INET. - Disallow layer 4 protocol with no ports, since destination port is a mandatory attribute for...

OESA-2024-1344 kernel security update

The Linux Kernel, the operating system core itself. Security Fixes: In the Linux kernel, the following vulnerability has been resolved: net/sched: actct: fix wild memory access when clearing fragments while testing re-assembly/re-fragmentation using actct, it's possible to observe a crash like th...

Ubuntu 16.04 LTS / 18.04 LTS : Linux kernel (GCP) vulnerabilities (USN-6701-2)

The remote Ubuntu 16.04 LTS / 18.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-6701-2 advisory. Ruihan Li discovered that the bluetooth subsystem in the Linux kernel did not properly perform permissions checks when handling HCI sockets. ...

SUSE CVE-2021-46954

In the Linux kernel, the following vulnerability has been resolved: net/sched: schfrag: fix stack OOB read while fragmenting IPv4 packets when 'actmirred' tries to fragment IPv4 packets that had been previously re-assembled using 'actct', splats like the following can be observed on kernels built...

CVE-2021-46954

In the Linux kernel, the following vulnerability has been resolved: net/sched: schfrag: fix stack OOB read while fragmenting IPv4 packets when 'actmirred' tries to fragment IPv4 packets that had been previously re-assembled using 'actct', splats like the following can be observed on kernels built...

Cross site scripting

An out-of-bounds read vulnerability was found in Netfilter Connection Tracking conntrack in the Linux kernel. This flaw allows a remote user to disclose sensitive information via the DCCP protocol...

CVE-2023-39197 Kernel: dccp: conntrack out-of-bounds read in nf_conntrack_dccp_packet()

An out-of-bounds read vulnerability was found in Netfilter Connection Tracking conntrack in the Linux kernel. This flaw allows a remote user to disclose sensitive information via the DCCP protocol...

CVE-2023-39197

The CVE-2023-39197 entry concerns an out-of-bounds read in Linux kernel Netfilter Connection Tracking (conntrack) for DCCP. A remote attacker could disclose kernel memory contents via crafted DCCP traffic due to copying an unbounded portion of the conntrack header; the issue is categorized as a k...

CVE-2023-39197 Kernel: dccp: conntrack out-of-bounds read in nf_conntrack_dccp_packet()

An out-of-bounds read vulnerability was found in Netfilter Connection Tracking conntrack in the Linux kernel. This flaw allows a remote user to disclose sensitive information via the DCCP protocol...

OESA-2023-1859 kernel security update

The Linux Kernel, the operating system core itself. Security Fixes: An out-of-bounds read vulnerability was found in Netfilter Connection Tracking conntrack in the Linux kernel. This flaw allows a remote user to disclose sensitive information via the DCCP protocol.CVE-2023-39197 A null pointer...

The vulnerability of the nf_conntrack_dccp_packet() function in the net/netfilter/nf_conntrack_proto_dccp.c module of the Linux operating system allows a hacker to gain access to protected information.

The vulnerability of the nfconntrackdccppacket function in the net/netfilter/nfconntrackprotodccp.c module of the Linux kernel is related to the escape of allocated memory from the protected area. Exploiting this vulnerability can allow an attacker to gain access to protected information...