AZL-10858 CVE-2022-39188 affecting package kernel for versions less than 5.15.67.1-4

An issue was discovered in include/asm-generic/tlb.h in the Linux kernel before 5.19. Because of a race condition unmapmappingrange versus munmap, a device driver can free a page while it still has stale TLB entries. This only occurs in situations with VMPFNMAP VMAs...

CVE-2022-39188

An issue was discovered in include/asm-generic/tlb.h in the Linux kernel before 5.19. Because of a race condition unmapmappingrange versus munmap, a device driver can free a page while it still has stale TLB entries. This only occurs in situations with VMPFNMAP VMAs...

Linux kernel 竞争条件问题漏洞

Linux kernel is the kernel used by Linux, the open source operating system of the Linux Foundation in the United States. A security vulnerability exists in versions of the Linux kernel prior to 5.19, which stems from its include/asm-generic/tlb.h component due to a contention condition in the cas...

"As Nasty as Dirty Pipe" — 8 Year Old Linux Kernel Vulnerability Uncovered

Details of an eight-year-old security vulnerability in the Linux kernel have emerged that the researchers say is "as nasty as Dirty Pipe." Dubbed DirtyCred by a group of academics from Northwestern University, the security weakness exploits a previously unknown flaw CVE-2022-2588 to escalate...

FreeBSD 安全漏洞

FreeBSD is a set of Unix-like operating systems from the FreeBSD Foundation. A security vulnerability exists in FreeBSD. By exploiting this vulnerability, an attacker can read segments of FreeBSD's memory via outdated virtual memory mappings to obtain sensitive information...

FreeBSD : FreeBSD -- Memory disclosure by stale virtual memory mapping (02fb9764-1893-11ed-9b22-002590c1f29c)

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 02fb9764-1893-11ed-9b22-002590c1f29c advisory. - A particular case of memory sharing is mishandled in the virtual memory system. This is very similar ...

CVE-2022-20239

remappfnrange' here may map out of size kernel memory for example, may map the kernel area, and because the 'vma-vmpageprot' can also be controlled by userspace, so userspace may map the kernel area to be writable, which is easy to be exploitedProduct: AndroidVersions: Android SoCAndroid ID:...

FreeBSD-SA-22:11.vm

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA512 ============================================================================= FreeBSD-SA-22:11.vm Security Advisory The FreeBSD Project Topic: Memory disclosure by stale virtual memory mapping Category: core Module: vm Announced: 2022-08-09 Credits:...

FreeBSD -- Memory disclosure by stale virtual memory mapping

Problem Description: A particular case of memory sharing is mishandled in the virtual memory system. This is very similar to SA-21:08.vm, but with a different root cause. Impact: An unprivileged local user process can maintain a mapping of a page after it is freed, allowing that process to read...

STIG V-218773 - Recycling IIS App Pools on Storefront Servers

Address STIGV-218773 compatibility with Citrix Storefront vis a vis of the virtual memory an application pool uses...

UBUNTU-CVE-2022-26356

Racy interactions between dirty vram tracking and paging log dirty hypercalls Activation of log dirty mode done by XENDMOPtrackdirtyvram was named HVMOPtrackdirtyvram before Xen 4.9 is racy with ongoing log dirty hypercalls. A suitably timed call to XENDMOPtrackdirtyvram can enable log dirty whil...

[SECURITY] [DLA 2941-1] linux-4.19 security update

Debian LTS Advisory DLA-2941-1 [email protected] https://www.debian.org/lts/security/ Ben Hutchings March 09, 2022 https://wiki.debian.org/LTS Package : linux-4.19 Version : 4.19.232-1deb9u1 CVE ID : CVE-2020-29374 CVE-2020-36322 CVE-2021-3640 CVE-2021-3744 CVE-2021-3752 CVE-2021-3760...

Fuchsia 安全漏洞

Fuchsia is an open source general-purpose operating system. a security vulnerability exists in Fuchsia, which stems from the fact that the software can modify VMO data by accessing a copy-on-write snapshot, which can be exploited by local attackers to modify objects in VMO that they do not have...

CVE-2021-44078

An issue was discovered in splitregion in uc.c in Unicorn Engine before 2.0.0-rc5. It allows local attackers to escape the sandbox. An attacker must first obtain the ability to execute crafted code in the target sandbox in order to exploit this vulnerability. The specific flaw exists within the...

Design/Logic Flaw

An issue was discovered in splitregion in uc.c in Unicorn Engine before 2.0.0-rc5. It allows local attackers to escape the sandbox. An attacker must first obtain the ability to execute crafted code in the target sandbox in order to exploit this vulnerability. The specific flaw exists within the...

PYSEC-2021-868

An issue was discovered in splitregion in uc.c in Unicorn Engine before 2.0.0-rc5. It allows local attackers to escape the sandbox. An attacker must first obtain the ability to execute crafted code in the target sandbox in order to exploit this vulnerability. The specific flaw exists within the...

PYSEC-2021-868

An issue was discovered in splitregion in uc.c in Unicorn Engine before 2.0.0-rc5. It allows local attackers to escape the sandbox. An attacker must first obtain the ability to execute crafted code in the target sandbox in order to exploit this vulnerability. The specific flaw exists within the...

CVE-2021-44078

CVE-2021-44078 affects Unicorn Engine prior to 2.0.0-rc5. The issue is in the split_region path of uc.c (virtual memory manager) where a faulty comparison of GVA and GPA during uc_mem_map_ptr frees part of a claimed memory block, enabling a local attacker to escape the sandbox and execute arbitra...

py39-unicorn -- sandbox escape and arbitrary code execution vulnerability

jwang-a reports: An issue was discovered in splitregion in uc.c in Unicorn Engine before 2.0.0-rc5. It allows local attackers to escape the sandbox. An attacker must first obtain the ability to execute crafted code in the target sandbox in order to exploit this vulnerability. The specific flaw...

kernel: Improper handling of VM_IO|VM_PFNMAP vmas in KVM can bypass RO checks

A flaw was found in the Linux kernel’s KVM implementation, where improper handing of the VMIO|VMPFNMAP VMAs in KVM bypasses RO checks and leads to pages being freed while still accessible by the VMM and guest. This flaw allows users who can start and control a VM to read/write random pages of...