CVE-2026-45251

CVE-2026-45251 describes a kernel use-after-free vulnerability: a file descriptor can be closed while a thread is blocked in poll(2)/select(2). The blocked thread does not hold a reference to the underlying object, so freeing the object may occur while the thread is still waiting. In some fd type...

FreeBSD 资源管理错误漏洞

FreeBSD is a Unix-like operating system developed by the FreeBSD Foundation. There is a resource management vulnerability in FreeBSD. This vulnerability arises from threads being blocked during poll or select calls when file descriptors are closed. The kernel fails to remove the blocked threads...

FreeBSD : FreeBSD -- Kernel use-after-free via file descriptor syscalls (ee21f41f-54b5-11f1-8d7a-bc241121aa0a)

The version of FreeBSD installed on the remote host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the ee21f41f-54b5-11f1-8d7a-bc241121aa0a advisory. A file descriptor can be closed while a thread is blocked in a poll2 or select2 call waiting for that...

FreeBSD : FreeBSD -- select(2) file descriptor set overflow causes stack overflow (90fe1784-54b6-11f1-8d7a-bc241121aa0a)

The version of FreeBSD installed on the remote host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the 90fe1784-54b6-11f1-8d7a-bc241121aa0a advisory. libcasper3 communicates with helper processes via UNIX domain sockets, and uses the select2 system call...

Astra Linux – Vulnerability in Linux, Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: scsi: scsi.debug: A sanity check was performed to ensure that the block descriptor length in respmodeselect was valid. BUG: KASAN: A use-after-free condition occurred in respmodeselect+0xa4c/0xb40, located in...

Astra Linux – Vulnerability in ruby-rails-html-sanitizer

Rails-html-sanitizer is responsible for sanitizing HTML fragments in Rails applications. Prior to version 1.4.4, there was a potential XSS vulnerability with certain configurations of Rails::Html::Sanitizer, due to an incomplete fix of CVE-2022-32209. Rails::Html::Sanitizer might allow an attacke...

Astra Linux – Vulnerability in Firefox

When styling and rendering an oversized element, Firefox did not apply correct clipping, allowing an attacker to paint over the user interface. This vulnerability affects Firefox versions prior to 89...

Astra Linux – Vulnerability in SQLite3

A flaw was discovered in SQLite’s SELECT query functionality src/select.c. This flaw allows an attacker who is capable of executing SQL queries locally on the SQLite database to cause a denial of service or potentially lead to code execution by triggering a use-after-free. The most significant...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211hwsim: Fixed possible NULL dereferencing. In the call to mac80211hwsimselecttxlink, the sta pointer might be NULL. Therefore, it is necessary to check that it is not NULL before accessing it...

Astra Linux – Vulnerability in PostgresSQL 11

An information leak was discovered in PostgreSQL versions prior to 13.2, before 12.6, and before 11.11. A user with UPDATE permission but without SELECT permission for a specific column could create queries that, under certain circumstances, might reveal values from that column in error messages...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: spi-rockchip: Fixed out-of-bounds access to registers. Do not write code related to native chip selection for GPIO chip selections. GPIOs can be numbered much higher than native CS. Moreover, this approach doesn’t make any sen...

Astra Linux – Vulnerability in SQLite3

The flattenSubquery in select.c in SQLite 3.30.1 mishandles certain uses of SELECT DISTINCT involving a LEFT JOIN where the right-hand side is a view. This can lead to a NULL pointer dereference or incorrect results...

Astra Linux – Vulnerability in Mariadb 10.3

In MariaDB version 10.5.9, an application can crash due to certain long SELECT DISTINCT statements that improperly interact with storage-engine resource limitations related to temporary data structures...

Astra Linux – Vulnerability in xorg-server

A vulnerability was discovered in X.Org. This security flaw occurs because the handler for the XvdiSelectVideoNotify request may write to memory after it has been freed. This issue can lead to local privileges escalation on systems where X is used...

Astra Linux – Vulnerability in Qemu

An “off-by-one” error was detected in the SCSI device emulation in QEMU. This error could occur during the processing of MODE SELECT commands in modesensepage, if the ‘page’ argument is set to MODEPAGEALLS 0x3f. A malicious guest could exploit this flaw to potentially cause QEMU to crash, resulti...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: ALSA: usb: scarlett2: Fixed missing NULL checks. The scarlett2inputselectctlinfo function sets up the string arrays using kasprintf, but it fails to perform NULL checks. This could lead to NULL dereferencing errors. We need to ad...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: mm/damon/reclaim: A potential memory leak was fixed in damonreclaiminit. damonreclaiminit allocates a memory chunk for ctx using damonnewctx. When damonselectops fails, the ctx is not released, which will lead to a memory leak. W...

Astra Linux – Vulnerability in SQLite3

In SQLite version 3.31.1, the ALTER TABLE implementation contains a use-after-free issue, as demonstrated by an ORDER BY clause that belongs to a compound SELECT statement...

FreeBSD-SA-26:19.file

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA512 ============================================================================= FreeBSD-SA-26:19.file Security Advisory The FreeBSD Project Topic: Kernel use-after-free via file descriptor syscalls Category: core Module: file Announced: 2026-05-20...

FreeBSD-SA-26:22.libcasper

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA512 ============================================================================= FreeBSD-SA-26:22.libcasper Security Advisory The FreeBSD Project Topic: select2 file descriptor set overflow causes stack overflow Category: core Module: libcasper...