DEBIAN-CVE-2025-21858

In the Linux kernel, the following vulnerability has been resolved: geneve: Fix use-after-free in genevefinddev. syzkaller reported a use-after-free in genevefinddev 0 without repro. geneveconfigure links struct genevedev.next to netgenericnet, genevenetid-genevelist. The net here could differ fr...

Linux Distros Unpatched Vulnerability : CVE-2021-47036

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: udp: skip L4 aggregation for UDP tunnel packets If NETIFFGROFRAGLIST or NETIFFGROUDPFWD are...

DEBIAN-CVE-2025-21768

In the Linux kernel, the following vulnerability has been resolved: net: ipv6: fix dst ref loops in rpl, seg6 and ioam6 lwtunnels Some lwtunnels have a dst cache for post-transformation dst. If the packet destination did not change we may end up recording a reference to the lwtunnel in its own...

AZL-62544 CVE-2025-21768 affecting package kernel 6.6.150.1-1

In the Linux kernel, the following vulnerability has been resolved: net: ipv6: fix dst ref loops in rpl, seg6 and ioam6 lwtunnels Some lwtunnels have a dst cache for post-transformation dst. If the packet destination did not change we may end up recording a reference to the lwtunnel in its own...

UBUNTU-CVE-2025-21768

In the Linux kernel, the following vulnerability has been resolved: net: ipv6: fix dst ref loops in rpl, seg6 and ioam6 lwtunnels Some lwtunnels have a dst cache for post-transformation dst. If the packet destination did not change we may end up recording a reference to the lwtunnel in its own...

SUSE CVE-2022-49663

In the Linux kernel, the following vulnerability has been resolved: tunnels: do not assume mac header is set in skbtunnelcheckpmtu Recently added debug in commit f9aefd6b2aa3 "net: warn if mac header was not set" caught a bug in skbtunnelcheckpmtu, as shown in this syzbot report 1. In ndostartxmi...

Linux kernel 安全漏洞

Linux kernel is the kernel used by Linux, the open source operating system of the Linux Foundation in the United States. A security vulnerability exists in the Linux kernel that stems from rpl, seg6, and ioam6 lwtunnels not handling dst cache references correctly, which could lead to a memory lea...

UBUNTU-CVE-2022-49663

In the Linux kernel, the following vulnerability has been resolved: tunnels: do not assume mac header is set in skbtunnelcheckpmtu Recently added debug in commit f9aefd6b2aa3 "net: warn if mac header was not set" caught a bug in skbtunnelcheckpmtu, as shown in this syzbot report 1. In ndostartxmi...

AsyncRAT Campaign Uses Python Payloads and TryCloudflare Tunnels for Stealth Attacks

A malware campaign has been observed delivering a remote access trojan RAT named AsyncRAT by making use of Python payloads and TryCloudflare tunnels. "AsyncRAT is a remote access trojan RAT that exploits the async/await pattern for efficient, asynchronous communication," Forcepoint X-Labs...

Ransomware Targets ESXi Systems via Stealthy SSH Tunnels for C2 Operations

Cybersecurity researchers have found that ransomware attacks targeting ESXi systems are also leveraging the access to repurpose the appliances as a conduit to tunnel traffic to command-and-control C2 infrastructure and stay under the radar. "ESXi appliances, which are unmonitored, are increasingl...

BellaCPP: Discovering a new BellaCiao variant written in C++

Introduction BellaCiao is a .NET-based malware family that adds a unique twist to an intrusion, combining the stealthy persistence of a webshell with the power to establish covert tunnels. It surfaced for the first time in late April 2023 and has since been publicly attributed to the APT actor...

Hackers Leveraging Cloudflare Tunnels, DNS Fast-Flux to Hide GammaDrop Malware

The threat actor known as Gamaredon has been observed leveraging Cloudflare Tunnels as a tactic to conceal its staging infrastructure hosting a malware called GammaDrop. The activity is part of an ongoing spear-phishing campaign targeting Ukrainian entities since at least early 2024 that's design...

CLSA-2024-1727690947 kernel: Fix of 80 CVEs

sch/netem: fix use after free in netemdequeue CVE-2024-46800 - VMCI: Fix use-after-free when removing resource in vmciresourceremove CVE-2024-46738 - drm/amdgpu: Fix out-of-bounds write warning CVE-2024-46725 - drm/amdgpu: Fix out-of-bounds read of dfv17channelnumber CVE-2024-46724 - drm/amdgpu:...

kernel: tunnels: fix out of bounds access when building IPv6 PMTU error

A flaw was found in the Linux kernel. This issue occurs due to the improper handling of non-linear skbs socket buffers when calculating checksums for ICMPv6 PMTU error messages. This vulnerability can lead to out-of-bounds access, potentially causing memory corruption or crashes...

[SECURITY] Fedora 40 Update: tor-0.4.8.12-2.fc40

The Tor network is a group of volunteer-operated servers that allows people to improve their privacy and security on the Internet. Tor's users employ this network by connecting through a series of virtual tunnels rather than making a direct connection, thus allowing both organizations and...

CVE-2024-39545 Junos OS: SRX Series, MX Series with SPC3 and NFX350: When VPN tunnels parameters are not configured in specific way the iked process will crash

An Improper Check for Unusual or Exceptional Conditions vulnerability in the the IKE daemon iked of Juniper Networks Junos OS on SRX Series, MX Series with SPC3 and NFX350 allows allows an unauthenticated, network-based attacker sending specific mismatching parameters as part of the IPsec...

Moderate: Red Hat Security Advisory: libreswan security update

An update for libreswan is now available for Red Hat Enterprise Linux 8.8 Extended Update Support. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available fo...

Important: kernel

Issue Overview: In the Linux kernel, the following vulnerability has been resolved: ext4: block range must be validated before use in ext4mbclearbb CVE-2022-50021 In the Linux kernel, the following vulnerability has been resolved: block, bfq: fix possible uaf for 'bfqq-bic' CVE-2022-50488 In the...

SUSE CVE-2024-35884

In the Linux kernel, the following vulnerability has been resolved: udp: do not accept non-tunnel GSO skbs landing in a tunnel When rx-udp-gro-forwarding is enabled UDP packets might be GROed when being forwarded. If such packets might land in a tunnel this can cause various issues and...

Moderate: Red Hat Security Advisory: libreswan security update

An update for libreswan is now available for Red Hat Enterprise Linux 8.8 Extended Update Support. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available fo...