kernel: "Dirty Frag" ESP XFRM variant is a new universal Local Privilege Escalation (LPE) vulnerability in the Linux kernel

A flaw was found in the Linux kernel's xfrm-ESP and RxRPC subsystems. Unsafe in-place cryptographic processing of shared socket buffer fragments allows a low-privileged local attacker to corrupt page-cache contents of readable files, including sensitive system files, and gain root privileges. The...

kernel: "Dirty Frag" ESP XFRM variant is a new universal Local Privilege Escalation (LPE) vulnerability in the Linux kernel

A flaw was found in the Linux kernel's xfrm-ESP and RxRPC subsystems. Unsafe in-place cryptographic processing of shared socket buffer fragments allows a low-privileged local attacker to corrupt page-cache contents of readable files, including sensitive system files, and gain root privileges. The...

Astra Linux – Vulnerability in Qemu

A flaw was discovered in the QEMU implementation of VMWare’s paravirtual RDMA device. This flaw allows a malicious guest driver to execute hardware commands when shared buffers have not yet been allocated, potentially leading to a use-after-free condition...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: drm/xe/migrate: prevents infinite recursion. If the buf + offset is not aligned to XECAHELINEBYTES, we fall back to using a bounce buffer. However, the bounce buffer is allocated on the stack, and the only alignment requirement...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: crypto: arm64/neonbs – fixed an issue of out-of-bounds access due to short inputs. The bit-sliced implementation of AES-CTR operates on blocks of 128 bytes. For tail blocks or inputs that are shorter than 128 bytes, it will fall...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: cifs: A memory and information leak has been fixed in smb3reconfigure. In smb3reconfigure, if the smb3syncSession ctxpasswords function fails, the function returns immediately without freeing and erasing the newly allocated...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: jbd2: fixed a potential use-after-free issue in jbd2fcwaitbufs. In jbd2fcwaitbufs, using bh after referencing the buffer’s head count may lead to a use-after-free condition. Therefore, ensure that the buffer is updated before...

Astra Linux – Vulnerability in Linux 5.10, Linux

In the Linux kernel, the following vulnerability has been resolved: intelth: msu: Fix for vmalloced buffers After committing the change f5ff79fddf0e “dma-mapping: remove CONFIGDMAREMAP”, there is a possibility that DMA buffers may be allocated using vmalloc, which can affect the memory mapping...

Astra Linux – Vulnerability in Linux 5.10

The network backend may cause Linux netfront to use freed SKBs. While adding logic to support XDP eXpress Data Path, a code label was moved in a way that allows SKBs to retain references pointers for further processing, so that they can still be freed...

Astra Linux – Vulnerability in Linux 5.10, Linux

In the Linux kernel, the following vulnerability has been resolved: swiotlb: Fixed the issue of information leakage due to DMAFROMDEVICE. The problem I’m addressing was discovered during the LTP test covering cve-2018-1000204. A brief description of what happens is as follows: 1 The test case sen...

Astra Linux – Vulnerability in Linux, Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: comedi: vmk80xx: fixed transfer-buffer overflows The driver uses USB transfer buffers sized at the endpoint level, but until recently, there were no sanity checks on these buffer sizes. The commit e1f13c879a7c “staging: comedi...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: “Revert ‘media: iris’: Add a sanity check for stopping streaming.” This change is reflected in the commit ad699fa78b59241c9d71a8cafb51525f3dab04d4. The check that previously skipped “stopstreaming” when the instance was in...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: drm/vmwgfx: Prevents unmapping of active read buffers. The kms paths maintain a persistent map that is active for reading and comparing the cursor buffer. These maps can conflict with each other in simple scenarios where: a buffe...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: Block: Fixed page ref counts for unaligned buffers in bioreleasepages. Fixed the issue where an incorrect number of pages were released for buffers that do not start at the beginning of a page...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: xfrm: iptfs: fix skbput panic on non-linear skb during reassembly In iptfsreassemcont, IP-TFS attempts to append data to the new inner packet ‘newskb’ that is being reassembled. First, a zero-copy approach is tried; if it succeed...

Astra Linux – Vulnerability in Linux, Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: comedi: vmk80xx: fixed the bulk-buffer overflow issue. The driver uses buffers sized equal to the endpoint size, but it should not assume that the tx and rx buffers have the same size. A malicious device could cause the...

Astra Linux – Vulnerability in Linux, Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: HID: usbhid: Free rawreport buffers in usbhidstop This fix addresses a memory leak reported by syzbot at: https://syzkaller.appspot.com/bug?id=7b4fa7cb1a7c2d3342a2a8a6c53371c8c418ab47...

Astra Linux – Vulnerability in Linux, Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: media: ngene: Fixed a out-of-bounds bug in ngenuecommandconfigfreebuf. Fixed a 11-year-old bug in ngenuecommandconfigfreebuf by addressing the following warnings encountered during compilation with -Warray-bounds:...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: Media: Iris: Gen1 – Destroy internal buffers after the firmware release. After the firmware releases, the driver did not destroy the internal buffers. This led to stale allocations that were no longer needed, especially during...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: net: fec: Use pagepoolputfullpage when freeing RX buffers The pagepoolreleasepage function was used when freeing RX buffers. This function simply unmaps the page if it was mapped and does not recycle the page. As a result, after...