Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: Net: TLS – Fix for the WARNING message in skmsgfree. A splice operation with MSGSPLICEPAGES causes the TLS code to use the tlsswsendmsgsplice path to move the user-provided pages from the msg to the msgpl. This process loops over...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: xen/privcmd: fixed the error exit of privcmdioctldmop The error exit of privcmdioctldmop calls unlockpages, potentially with pages being NULL, leading to a NULL dereference. Additionally, lockpages does not check whether...

Astra Linux – Vulnerability in Zabbix

A authenticated user can create a link containing XSS payloads for action pages, and send it to other users. Malicious code has access to all the same objects as the rest of the web page, and can make arbitrary modifications to the contents of the page displayed to the victim. This attack can be...

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: KVM: SVM – Flushing pages under kvm-lock to fix a Use-After-Free error in svmregisterencregion It is necessary to flush the cached pages in svmregisterencregion before releasing kvm-lock to address use-after-free issues. In such...

Astra Linux – Vulnerability found in Linux 5.15, Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: f2fs: compress: fixed to avoid a use-after-free condition on dic. Call trace: memcpy+0x128/0x250 f2fsreadmultipages+0x940/0xf7c f2fsmpagereadpages+0x5a8/0x624 f2fsreadahead+0x5c/0x110 pagecacheraunbounded+0x1b8/0x590...

Astra Linux – Vulnerability in Chromium

Inappropriate implementation in Extensions in Google Chrome prior to 115.0.5790.170 allowed an attacker who convinced a user to install a malicious extension to inject scripts or HTML into a privileged page via a crafted Chrome Extension. Chromium security severity: Medium...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: mm/filemap: Make MAXPAGECACHEORDER acceptable to xarray. Patch series “mm/filemap: Limit page cache size to that supported by xarray”, version 2. Currently, xarray cannot support arbitrary page cache sizes. More details can be...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: mm/userfaultfd: the issue with the mutex hash calculation due to hugetlb faults has been fixed. In mfillatomichugetlb, the linearpageindex function is used to calculate the page index for hugetlbfaultmutexhash. However,...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: Block devices with logical block size page size will be rejected when THP is disabled. If THP is disabled and there are block devices with logical block size page size, the following nullptrderef panic occurs during boot: 13.2 mK...

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

In the Linux kernel, the following vulnerability has been resolved: mm/swap: Fixed the race condition between swapoff and getswappages. The si-lock must be held when deleting the si from the available list. Otherwise, another thread may re-add the si to the available list, which can lead to memor...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: btrfs: The free pages operation fails with an error in btrfsuringreadextent. In this function, the pages object is never freed, with the hope that it will be picked up by btrfsuringreadfinished whenever that function is executed ...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: hugetlb, userfaultfd: fixed the issue of reservation restoration when an error occurs with userfaultfd. Currently, in the iscontinue case within hugetlbmcopyatomicpte, if we use “goto outreleaseunlock;“ in cases where idx =...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: Fuse: A missing copyfinish function in fuse-over-io-uring argument copies. This issue causes a possible reference count leak of payload pages during argument copies. Joanne: Simplified error cleanup...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: mm: turning foliotesthugetlb into a PageType. The current foliotesthugetlb function can be exploited by a concurrent folio split operation, resulting in a false positive—returning true for a folio that never belonged to hugetlbfs...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: bootmem: The vmemmap pages are removed from kmemleak when freeing the page. These pages were previously marked by kmemleak when allocated from a memblock. If they remain in kmemleak, they may cause errors when reusing the page...

Astra Linux – Vulnerability in Linux 5.10, Linux

Linux block and network PV device frontends do not zero memory regions before sharing them with the backend CVE-2022-26365, CVE-2022-33740. Additionally, the granularity of the grant table does not allow sharing smaller than a 4K page, resulting in unrelated data residing in the same 4K page as...

Astra Linux – Vulnerability in Firefox and Thunderbird

If a PAC URL was set, and the server hosting the PAC was unreachable, OCSP requests would be blocked, resulting in incorrect error pages being displayed. This vulnerability affects Firefox 102, Firefox ESR 91.11, Thunderbird 102, and Thunderbird 91.11...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: mm/secretmem: fixed NULL page-mapping dereference in pageissecretmem Checked for a NULL page-mapping before dereferencing the mapping in pageissecretmem, as the page’s mapping can be nullified while gup is running, for example, b...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: watchqueue: Fixed NULL dereference in error cleanup. In watchqueuesetsize, the error cleanup code does not take into account the fact that freepage cannot handle a NULL pointer when trying to free buffer pages that have been...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: fuse: The fuserelease function contains a race condition between the write2 and close2 calls. This allows pages to become dirty after the fuseFlush - writeinodenow operation. If these pages are not flushed from fuseRelease, there...