Secure Reinforcement Learning: On Model-Free Detection of Man in the Middle Attacks

We consider the problem of learning-based man-in-the-middle MITM attacks in cyber-physical systems CPS, and extend our previously proposed Bellman Deviation Detection BDD framework for model-free reinforcement learning RL. We refine the standard MDP attack model by allowing the reward function to...

Intermittent File Encryption in Ransomware: Measurement, Modeling, and Detection

File encrypting ransomware increasingly employs intermittent encryption techniques, encrypting only parts of files to evade classical detection methods. These strategies, exemplified by ransomware families like BlackCat, complicate file structure based detection techniques due to diverse file...

Cisco Access Point Software Intermittent IPv6 Gateway Change (cisco-sa-ap-ipv6-gw-tUAzpn9O)

According to its self-reported version, Cisco Access Point Software Intermittent IPv6 Gateway Change is affected by a vulnerability. - A vulnerability in the IPv6 Router Advertisement RA packet processing of Cisco Access Point Software could allow an unauthenticated, adjacent attacker to modify t...

Cisco Access Point Software Intermittent IPv6 Gateway Change Vulnerability

A vulnerability in the IPv6 Router Advertisement RA packet processing of Cisco Access Point Software could allow an unauthenticated, adjacent attacker to modify the IPv6 gateway on an affected device. This vulnerability is due to a logic error in the processing of IPv6 RA packets that are receive...

Citrix Workspace App - RemotePC ICA session freezes intermittently

Users may experience a session freezing issue while working on the ICA session to Remote PC. They may also see black screen on the console of the Remote PC with unresponsive keyboard and mouse after disconnecting from the ICA connection. The machine can be recovered only by rebooting the Remote P...

Data Encryption Battlefield: a Deep Dive into the Dynamic Confrontations in Ransomware Attacks

In the rapidly evolving landscape of cybersecurity threats, ransomware represents a significant challenge. Attackers increasingly employ sophisticated encryption methods, such as entropy reduction through Base64 encoding, and partial or intermittent encryption to evade traditional detection...

Printers intermittently shows Access denied, Unable to connect

Customer has moved from 7.15 to DAAS with WEM on cloud, Since then they are facing issues with printers intermittently 2. Issue is occurring with all the users Admins and non Admins 3. Issue got auto resolved post 15-20 minutes and sometimes users need to close the application and they able to...

SUSE-SU-2024:4266-1 Security update for the Linux Kernel (Live Patch 24 for SLE 15 SP4)

This update for the Linux Kernel 5.14.21-15040024111 fixes several issues. The following security issues were fixed: - CVE-2024-36904: tcp: Use refcountincnotzero in tcptwskunique bsc1225733. - CVE-2024-43861: Fix memory leak for not ip packets bsc1229553. - CVE-2024-35905: Fixed int overflow for...

openSUSE: Security Advisory for the Linux Kernel (Live Patch 25 for SLE 15 SP4) (SUSE-SU-2024:3851-1)

The remote host is missing an update for the SPDX-FileCopyrightText: 2024 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only ifdescription...

openSUSE: Security Advisory for the Linux Kernel (Live Patch 24 for SLE 15 SP4) (SUSE-SU-2024:3815-1)

The remote host is missing an update for the SPDX-FileCopyrightText: 2024 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only ifdescription...

SUSE-SU-2024:3836-1 Security update for the Linux Kernel (Live Patch 28 for SLE 15 SP4)

This update for the Linux Kernel 5.14.21-15040024125 fixes several issues. The following security issues were fixed: - CVE-2021-47598: schcake: do not call cakedestroy from cakeinit bsc1227471. - Intermittent nfs mount failures may be due to SUNRPC over UDP bsc1231353 - CVE-2024-40954: net: do no...

SUSE-SU-2024:3793-1 Security update for the Linux Kernel (Live Patch 23 for SLE 15 SP4)

This update for the Linux Kernel 5.14.21-15040024108 fixes several issues. The following security issues were fixed: - CVE-2021-47598: schcake: do not call cakedestroy from cakeinit bsc1227471. - CVE-2024-35863: Fixed potential UAF in isvalidoplockbreak bsc1225011. - CVE-2023-52752: smb: client:...

Accessing Confluence using PAT Token fails intermittently when multiple users access concurrently

h3. Issue Summary This issue is similar to the one reported in Jira side under JRASERVER-76340|https://jira.atlassian.com/browse/JRASERVER-76340 This is reproducible on Data Center: Yes h3. Steps to Reproduce Provision a new Confluence environment Create two new users: "usera" and "userb" For eac...

CIFS ISO Mount Disconnecting Intermittently

Mounting out ISO from a CIFS ISO Storage Repository SR disconnects intermittently, and causes boot ISOs to disappear and bounced servers unable to boot. The /var/log/messages log is displayed as following: CIFS VFS: No response for cmd 50 mid 3457CIFS VFS: No response for cmd 50 mid 63007CIFS VFS...

CVE-2022-48743

In the Linux kernel, the following vulnerability has been resolved: net: amd-xgbe: Fix skb data length underflow There will be BUGON triggered in include/linux/skbuff.h leading to intermittent kernel panic, when the skb length underflow is detected. Fix this by dropping the packet if such length...

CVE-2022-48743

In the Linux kernel, the following vulnerability has been resolved: net: amd-xgbe: Fix skb data length underflow There will be BUGON triggered in include/linux/skbuff.h leading to intermittent kernel panic, when the skb length underflow is detected. Fix this by dropping the packet if such length...

CVE-2022-48743 net: amd-xgbe: Fix skb data length underflow

In the Linux kernel, the following vulnerability has been resolved: net: amd-xgbe: Fix skb data length underflow There will be BUGON triggered in include/linux/skbuff.h leading to intermittent kernel panic, when the skb length underflow is detected. Fix this by dropping the packet if such length...

CVE-2022-48743

CVE-2022-48743 (Linux kernel): The issue is in the amd-xgbe NIC path (net/amd-xgbe) where skb data length underflow could trigger BUG_ON() in skbuff.h, potentially causing kernel panics. The documented fix drops the packet when such underflows occur to handle hardware descriptor inconsistencies. ...

CVE-2022-48743 net: amd-xgbe: Fix skb data length underflow

In the Linux kernel, the following vulnerability has been resolved: net: amd-xgbe: Fix skb data length underflow There will be BUGON triggered in include/linux/skbuff.h leading to intermittent kernel panic, when the skb length underflow is detected. Fix this by dropping the packet if such length...

CVE-2022-48743 net: amd-xgbe: Fix skb data length underflow

In the Linux kernel, the following vulnerability has been resolved: net: amd-xgbe: Fix skb data length underflow There will be BUGON triggered in include/linux/skbuff.h leading to intermittent kernel panic, when the skb length underflow is detected. Fix this by dropping the packet if such length...