Linux Distros Unpatched Vulnerability : CVE-2023-53619

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - netfilter: conntrack: Avoid nfcthelperhash uses after free If nfconntrackinitstart fails for example due to a registernfconntrackbpf failure, the...

EUVD-2025-22890

Malicious code in bioql PyPI...

CVE-2022-49561 netfilter: conntrack: re-fetch conntrack after insertion

In the Linux kernel, the following vulnerability has been resolved: netfilter: conntrack: re-fetch conntrack after insertion In case the conntrack is clashing, insertion can free skb-nfct and set skb-nfct to the already-confirmed entry. This wasn't found before because the conntrack entry and the...

CVE-2022-48974

CVE-2022-48974 – Linux kernel netfilter conntrack fix : The vulnerability occurs in nf_conntrack_hash_check_insert() when nf_ct_ext_valid_pre/post() paths call NF_CT_STAT_INC() in a preemptible context, enabling a use-after-free-like trace. The fix patches nf_conntrack to use NF_CT_STAT_INC_ATOMI...

CVE-2021-47408

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...

CVE-2021-47408

In the Linux kernel, the following vulnerability has been resolved: netfilter: conntrack: serialize hash resizes and cleanups Syzbot was able to trigger the following warning 1 No repro found by syzbot yet but I was able to trigger similar issue by having 2 scripts running in parallel, changing...

CVE-2021-47408 netfilter: conntrack: serialize hash resizes and cleanups

In the Linux kernel, the following vulnerability has been resolved: netfilter: conntrack: serialize hash resizes and cleanups Syzbot was able to trigger the following warning 1 No repro found by syzbot yet but I was able to trigger similar issue by having 2 scripts running in parallel, changing...

OESA-2023-1861 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...

USN-3392-1: Linux kernel regression

USN-3378-1 fixed vulnerabilities in the Linux kernel. Unfortunately, a regression was introduced that prevented conntrack from working correctly in some situations. This update fixes the problem. We apologize for the inconvenience. Original advisory details: Fan Wu and Shixiong Zhao discovered a...