Astra Linux – Vulnerability found in Linux 5.10, Linux 5.15, and Linux 6.1

A heap-out-of-bounds write vulnerability in the Linux kernel’s Performance Events system component can be exploited to achieve local privilege escalation. The readsize of a perfevent can overflow, resulting in an out-of-bounds increment or write in perfreadgroup. We recommend upgrading to a versi...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: ALSA: firewire-motu: added a bounds check in the putuser loop for DSP events. In the DSP event handling code, the putuser loop copies event data. When the user buffer size is not aligned to 4 bytes, it may overwrite data beyond t...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: net: switchdev: Converting the blocking notification chain to a raw one A blocking notification chain uses a read-write semaphore to protect the integrity of the chain. The semaphore is acquired for writing when adding/removing...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1, and Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: Tracing: Do not register unsupported perf events Synthetic events currently do not have a function to register perf events. This leads to calling the tracepoint register functions with a NULL function pointer, which triggers the...

Astra Linux – Vulnerability in Firefox

An attacker could write data to the user’s clipboard by bypassing the user prompt during a certain sequence of navigation events. This vulnerability affects Firefox 129, Firefox ESR 128.3, and Thunderbird 128.3...

Astra Linux – Vulnerability in Linux

A issue was discovered in Xen through version 4.14.x. Some operating systems, such as Linux, FreeBSD, and NetBSD, process watch events using a single thread. If these events are received faster than the thread can handle them, they will be queued up. Since the queue is unbounded, a guest system m...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: net: rfkill: It is now possible to prevent the creation of an unlimited number of rfkill events. The user space can create an unlimited number of rfkill events if the system is configured in that way, without consuming resources...

Astra Linux – Vulnerability in Thunderbird

matrix-js-sdk is a client-server SDK for the Matrix messaging protocol, designed for JavaScript. In versions prior to 19.4.0, events sent with special strings in key locations could temporarily disrupt or hinder the proper functioning of matrix-js-sdk, potentially affecting the consumer’s ability...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1, and Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: Tracing: dynevent – Added a missing lockdown check to dynevent. Since the dynamicevents interface on tracefs is compatible with kprobeevents and uprobeevents, it should also check the lockdown status and reject any cases where...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: perf/x86/intel: Limit the period on Haswell Running the ltp test cve-2015-3290 concurrently reports the following warnings. perfevents: irq loop stuck! WARNING: CPU: 31 PID: 32438 at arch/x86/events/intel/core.c:3174...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: tracing/hist: Fix out-of-bound write on ‘actiondata.varrefidx’ When generating a synthetic event with many parameters and then creating a trace action for it 1, a kernel panic occurred 2. This issue arises because in...

Astra Linux – Vulnerabilities in Linux, Linux-5.10, Linux-5.15

In the Linux kernel, the following vulnerability has been resolved: inotify: Avoid reporting events with an invalid wd value. When inotifyfreeingmark races with inotifyhandleinodeevent, it is possible that inotifyhandle inodeevent sees that imark-wd has already been reset to -1 and reports this...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: KVM: x86: Ignore -EBUSY when checking nested events from vcpublock Ignore -EBUSY when checking nested events after exiting a blocking state. This applies when L2 is active; exiting to userspace will typically result in a spurious...

Astra Linux – Vulnerability found in Linux 5.15, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: ALSA: Fixed deadlocks that occurred during the removal of kctl elements at disconnection. In sndcarddisconnect, we set the card-shutdown flag at the beginning, called callbacks, and performed synchronization for the...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1, and Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: Tracing: Add downwritetraceeventsem when adding a trace event. When a module is loaded, it adds trace events defined by that module. It may also be necessary to modify the module’s trace printk formats by replacing enum names wit...

Astra Linux – Vulnerability in Linux 5.15

A use-after-free vulnerability in the Linux Kernel Performance Events system can be exploited to gain local privilege escalation. The perfgroupdetach function did not check the attachstate of the event’s siblings before calling addeventtogroups. However, removeonexec allowed calling listdelevent...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: drivers/perf: hisi: hns3: Fix for out-of-bound access when a valid event group is used. The perf tool allows users to create event groups using the cmd 1, but the driver does not check whether the array index is out of bounds whe...

Astra Linux – Vulnerability in Linux, Linux 5.10

Rogue backends can cause Denial of Service DoS attacks on guests through high-frequency events. This CNA information record relates to multiple Common Vulnerabilities and Exposures CVEs; the text explains which aspects/vulnerabilities correspond to which CVEs. Xen allows for the execution of PV...

Astra Linux – Vulnerability in Linux 5.10, Linux, Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: drm/amdkfd: Fixed an illegal memory access In the kfdwaitonevents function, the kfdeventwaiter structure is allocated by alloceventwaiters. However, the event field of the waiter structure is not initialized. When the...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15, Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: PCI/DPC: Fixed a use-after-free issue when a DPC event occurs concurrently with hot-removal of the same portion of the hierarchy. Keith reported a use-after-free when a DPC event occurred concurrently with the hot-removal of t...