Important: kernel

Issue Overview: An issue was found in the Linux kernel's IPv6 TCP connection tracking code, which could lead to high CPU usage with certain traffic patterns. CVE-2023-1206 Affected Packages: kernel Note: This advisory is applicable to Amazon Linux 2 - Kernel-5.15 Extra. Visit this page to learn...

Important: kernel

Issue Overview: An issue was found in the Linux kernel's IPv6 TCP connection tracking code, which could lead to high CPU usage with certain traffic patterns. CVE-2023-1206 Affected Packages: kernel Note: This advisory is applicable to Amazon Linux 2 AL2 Core repository. Visit this FAQ section for...

PT-2023-6957

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description The issue is related to an out-of-bounds read vulnerability in Netfilter Connection Tracking conntrack in the Linux kernel. This flaw allows a remote user to disclose sensitive informati...

kernel: netfilter: nf_conntrack_irc message handling issue

A flaw was found in the Linux kernel in nfconntrackirc where the message handling can be confused and it incorrectly matches on the message. An attacker could exploit this vulnerability to bypass firewall when users are using unencrypted IRC with nfconntrackirc configured...

PT-2025-43121

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description The Linux kernel contains an issue in the net/mlx5e component where the label mapping is not correctly released when replacing an existing connection tracking ct entry. This leads to a...

libnetfilter_conntrack bug fix and enhancement update

An update is available for libnetfilterconntrack. This update affects Rocky Linux 9. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from the CVE list libnetfilterconntrack is a userspace library providing a...

SUSE CVE-2001-0405

ipconntrackftp in the IPTables firewall for Linux 2.4 allows remote attackers to bypass access restrictions for an FTP server via a PORT command that lists an arbitrary IP address and port number, which is added to the RELATED table and allowed by the firewall...

SUSE CVE-2006-2934

SCTP conntrack ipconntrackprotosctp.c in netfilter for Linux kernel 2.6.17 before 2.6.17.3 and 2.6.16 before 2.6.16.23 allows remote attackers to cause a denial of service crash via a packet without any chunks, which causes a variable to contain an invalid value that is later used to dereference ...

SUSE CVE-2012-2744

net/ipv6/netfilter/nfconntrackreasm.c in the Linux kernel before 2.6.34, when the nfconntrackipv6 module is enabled, allows remote attackers to cause a denial of service NULL pointer dereference and system crash via certain types of fragmented IPv6 packets...

SUSE CVE-2021-38209

net/netfilter/nfconntrackstandalone.c in the Linux kernel before 5.12.2 allows observation of changes in any net namespace because these changes are leaked into all other net namespaces. This is related to the NFSYSCTLCTMAX, NFSYSCTLCTEXPECTMAX, and NFSYSCTLCTBUCKETS sysctls...

SUSE CVE-2022-2663

An issue was found in the Linux kernel in nfconntrackirc where the message handling can be confused and incorrectly matches the message. A firewall may be able to be bypassed when users are using unencrypted IRC with nfconntrackirc configured...

PT-2024-11839

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A vulnerability has been resolved in the Linux kernel related to the netfilter conntrack module. The issue occurs when nf conntrack hash check insert fails in nf ct ext valid pre/post,...

conntrack-tools bug fix and enhancement update

An update is available for conntrack-tools. This update affects Rocky Linux 9. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from the CVE list The conntrack-tools packages enable the user to set up a High...

Linux kernel 安全漏洞

The Linux kernel is the kernel used by the Linux Foundation's open source operating system Linux. A security vulnerability exists in the Linux kernel, which can be exploited by an attacker to bypass the Linux kernel's filtering rules via nfconntrackirc to send malicious data...

PT-2025-8111

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A reference leak occurs in the Linux kernel when switching zones or network namespaces without clearing the connection tracking ct entry in between. This happens because tcf ct skb nfct...

DEBIAN-CVE-2021-38209

net/netfilter/nfconntrackstandalone.c in the Linux kernel before 5.12.2 allows observation of changes in any net namespace because these changes are leaked into all other net namespaces. This is related to the NFSYSCTLCTMAX, NFSYSCTLCTEXPECTMAX, and NFSYSCTLCTBUCKETS sysctls...

CVE-2021-38209

net/netfilter/nfconntrackstandalone.c in the Linux kernel before 5.12.2 allows observation of changes in any net namespace because these changes are leaked into all other net namespaces. This is related to the NFSYSCTLCTMAX, NFSYSCTLCTEXPECTMAX, and NFSYSCTLCTBUCKETS sysctls...

UBUNTU-CVE-2021-38209

net/netfilter/nfconntrackstandalone.c in the Linux kernel before 5.12.2 allows observation of changes in any net namespace because these changes are leaked into all other net namespaces. This is related to the NFSYSCTLCTMAX, NFSYSCTLCTEXPECTMAX, and NFSYSCTLCTBUCKETS sysctls...

Important: Red Hat Security Advisory: kernel security and bug fix update

An update for kernel is now available for Red Hat Enterprise Linux 8. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from th...

Important: kernel security and bug fix update

The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fixes: kernel: sizet-to-int conversion vulnerability in the filesystem layer CVE-2021-33909 kernel: race condition for removal of the HCI controller CVE-2021-32399 For more details about the security...