#dos

Ubuntu Security Notice 6340-2 - Ruihan Li discovered that the bluetooth subsystem in the Linux kernel did not properly perform permissions checks when handling HCI sockets. A physically proximate attacker could use this to cause a denial of service. Zi Fan Tan discovered that the binder IPC implementation in the Linux kernel contained a use-after-free vulnerability. A local attacker could use this to cause a denial of service or possibly execute arbitrary code.

It was discovered that the IP-VLAN network driver for the Linux kernel did not properly initialize memory in some situations, leading to an out-of- bounds write vulnerability. An attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. Querijn Voet discovered that a race condition existed in the io_uring subsystem in the Linux kernel, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. Various other vulnerabilities were also discovered and addressed.

Shenzhen Hichip Vision Technology IP Camera Firmware V11.4.8.1.1-20170926 has a denial of service vulnerability through sending a crafted multicast message in a local network.

### Impact An issue was found in RKE2 where an attacker with network access to RKE2 servers' supervisor port (TCP 9345) can force the TLS server to add entries to the certificate's Subject Alternative Name (SAN) list, through a stuffing attack, until the certificate grows so large that it exceeds the maximum size allowed by TLS client implementations. OpenSSL for example will raise an `excessive message size` error when this occurs. No authentication is necessary to perform this attack, only the ability to perform a TLS handshake against the supervisor port (TCP 9345). Affected servers will continue to operate, but clients (server or agent nodes) will fail to establish new connections when joining or rejoining the cluster, thus leading to a denial of service (DoS) attack. ### Remediation Upgrade to a fixed release: - v1.28.1+rke2r1 - v1.27.5+rke2r1 - v1.26.8+rke2r1 - v1.25.13+rke2r1 - 1.24.17+rke2r1 If you are using RKE2 1.27 or earlier, you must also add the parameter `tls-san-se...

### Impact An issue was found in K3s where an attacker with network access to K3s servers' apiserver/supervisor port (TCP 6443) can force the TLS server to add entries to the certificate's Subject Alternative Name (SAN) list, through a stuffing attack, until the certificate grows so large that it exceeds the maximum size allowed by TLS client implementations. OpenSSL for example will raise an `excessive message size` error when this occurs. No authentication is necessary to perform this attack, only the ability to perform a TLS handshake against the apiserver/supervisor port (TCP 6443). Affected servers will continue to operate, but clients (including both external administrative access with `kubectl` and server or agent nodes) will fail to establish new connections, thus leading to a denial of service (DoS) attack. ### Remediation Upgrade to a fixed release: - v1.28.1+k3s1 - v1.27.5+k3s1 - v1.26.8+k3s1 - v1.25.13+k3s1 - v1.24.17+k3s1 If you are using K3s 1.27 or earlier, you mus...

An issue was discovered in Qubo Smart Plug 10A version HSP02_01_01_14_SYSTEM-10A, allows attackers to cause a denial of service (DoS) via Wi-Fi deauthentication.

### Impact All versions of ArgoCD starting from v2.4 have a bug where the ArgoCD repo-server component is vulnerable to a Denial-of-Service attack vector. Specifically, the said component extracts a user-controlled tar.gz file without validating the size of its inner files. As a result, a malicious, low-privileged user can send a malicious tar.gz file that exploits this vulnerability to the repo-server, thereby harming the system's functionality and availability. Additionally, the repo-server is susceptible to another vulnerability due to the fact that it does not check the extracted file permissions before attempting to delete them. Consequently, an attacker can craft a malicious tar.gz archive in a way that prevents the deletion of its inner files when the manifest generation process is completed. ### Patches A patch for this vulnerability has been released in the following Argo CD versions: * v2.6.15 * v2.7.14 * v2.8.3 ### Workarounds The only way to completely resolve the issue...

Patterson and her teammates are responsible for helping to disclose and patch more than 200 security vulnerabilities a year, some of which affect devices used in thousands of households around the world.

With the growing reliance on web applications and digital platforms, the use of application programming interfaces (APIs) has become increasingly popular. If you aren’t familiar with the term, APIs allow applications to communicate with each other and they play a vital role in modern software development. However, the rise of API use has also led to an increase in the number of API breaches.

Anaconda 3 2023.03-1-Linux allows local users to disrupt TLS certificate validation by modifying the cacert.pem file used by the installed pip program. This occurs because many files are installed as world-writable on Linux, ignoring umask, even when these files are installed as root. Miniconda is also affected.