CVE-2026-80603

A flaw was found in the Linux kernel's netfilter component, specifically within the nfconntrackirc module. An off-by-one error in the parsedcc function can cause the system to read one byte beyond an allocated buffer. This can lead to the use of uninitialized or stale data, potentially resulting ...

Linux Distros Unpatched Vulnerability : CVE-2026-80603

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - netfilter: nfconntrackirc: fix parsedcc off-by-one OOB read parsedcc treats dataend as an inclusive end pointer, but its only caller passes datalimit = ibptr +...

SUSE CVE-2026-80603

In the Linux kernel, the following vulnerability has been resolved: netfilter: nfconntrackirc: fix parsedcc off-by-one OOB read parsedcc treats dataend as an inclusive end pointer, but its only caller passes datalimit = ibptr + datalen, which points one past the last valid byte. The newline searc...

CVE-2026-80603

In the Linux kernel, the following vulnerability has been resolved: netfilter: nfconntrackirc: fix parsedcc off-by-one OOB read parsedcc treats dataend as an inclusive end pointer, but its only caller passes datalimit = ibptr + datalen, which points one past the last valid byte. The newline searc...

UBUNTU-CVE-2026-80603

In the Linux kernel, the following vulnerability has been resolved: netfilter: nfconntrackirc: fix parsedcc off-by-one OOB read parsedcc treats dataend as an inclusive end pointer, but its only caller passes datalimit = ibptr + datalen, which points one past the last valid byte. The newline searc...

CVE-2026-80603

In the Linux kernel, the following vulnerability has been resolved: netfilter: nfconntrackirc: fix parsedcc off-by-one OOB read parsedcc treats dataend as an inclusive end pointer, but its only caller passes datalimit = ibptr + datalen, which points one past the last valid byte. The newline searc...

CVE-2026-80603 netfilter: nf_conntrack_irc: fix parse_dcc() off-by-one OOB read

In the Linux kernel, the following vulnerability has been resolved: netfilter: nfconntrackirc: fix parsedcc off-by-one OOB read parsedcc treats dataend as an inclusive end pointer, but its only caller passes datalimit = ibptr + datalen, which points one past the last valid byte. The newline searc...

EUVD-2026-67479

In the Linux kernel, the following vulnerability has been resolved: netfilter: nfconntrackirc: fix parsedcc off-by-one OOB read parsedcc treats dataend as an inclusive end pointer, but its only caller passes datalimit = ibptr + datalen, which points one past the last valid byte. The newline searc...

CVE-2026-80603

An off-by-one out-of-bounds read in the Linux kernel's netfilter nf_conntrack_irc module affects the parse_dcc() function. The function treats data_end as an inclusive bound, but its caller passes an exclusive end pointer (ib_ptr + datalen). The newline search loop iterates with

CVE-2026-80603

In the Linux kernel, the following vulnerability has been resolved: netfilter: nfconntrackirc: fix parsedcc off-by-one OOB read parsedcc treats dataend as an inclusive end pointer, but its only caller passes datalimit = ibptr + datalen, which points one past the last valid byte. The newline searc...

CVE-2026-80603 netfilter: nf_conntrack_irc: fix parse_dcc() off-by-one OOB read

In the Linux kernel, the following vulnerability has been resolved: netfilter: nfconntrackirc: fix parsedcc off-by-one OOB read parsedcc treats dataend as an inclusive end pointer, but its only caller passes datalimit = ibptr + datalen, which points one past the last valid byte. The newline searc...

Astra Linux – Vulnerability in Linux 5.10, Linux

A issue was discovered in the Linux kernel, specifically in the nfconntrackirc module. In this case, the message handling mechanism can become confusing, and messages may be matched incorrectly. It is possible for a firewall to be bypassed when users use unencrypted IRC with the nfconntrackirc...

EUVD-2022-34909

Malicious code in bioql PyPI...

Ubuntu 22.04 LTS : Linux kernel (OEM) vulnerabilities (USN-6247-1)

The remote Ubuntu 22.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-6247-1 advisory. David Leadbeater discovered that the netfilter IRC protocol tracking implementation in the Linux Kernel incorrectly handled certain message payloads in...

AlmaLinux 8 : kernel (ALSA-2023:2951)

The remote AlmaLinux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the ALSA-2023:2951 advisory. - Some AMD CPUs may transiently execute beyond unconditional direct branches, which may potentially result in data leakage. CVE-2021-26341 - When sending...

AlmaLinux 9 : kernel-rt (ALSA-2023:2148)

The remote AlmaLinux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the ALSA-2023:2148 advisory. - Some AMD CPUs may transiently execute beyond unconditional direct branches, which may potentially result in data leakage. CVE-2021-26341 - When sending...

RHEL 9 : kernel-rt (RHSA-2023:2148)

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2023:2148 advisory. The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirement...

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...

EulerOS 2.0 SP5 : kernel (EulerOS-SA-2023-1507)

According to the versions of the kernel packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : A use-after-free flaw was found in fs/ext4/namei.c:dxinsertblock in the Linux kernels filesystem sub-component. This flaw allows a local attacker...

Ubuntu 20.04 LTS : Linux kernel (GKE) vulnerabilities (USN-5877-1)

The remote Ubuntu 20.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-5877-1 advisory. Kyle Zeng discovered that the sysctl implementation in the Linux kernel contained a stack-based buffer overflow. A local attacker could use this to cause...