CVE-2021-4442

In the Linux kernel, the following vulnerability has been resolved: tcp: add sanity tests to TCPQUEUESEQ Qingyu Li reported a syzkaller bug where the repro changes RCV SEQ after restoring data in the receive queue. mprotect0x4aa000, 12288, PROTREAD = 0 mmap0x1ffff000, 4096, PROTNONE,...

CVE-2021-4442 tcp: add sanity tests to TCP_QUEUE_SEQ

In the Linux kernel, the following vulnerability has been resolved: tcp: add sanity tests to TCPQUEUESEQ Qingyu Li reported a syzkaller bug where the repro changes RCV SEQ after restoring data in the receive queue. mprotect0x4aa000, 12288, PROTREAD = 0 mmap0x1ffff000, 4096, PROTNONE,...

CVE-2021-4442

CVE-2021-4442 – The Linux kernel TCP stack vulnerability described as: a syzkaller repro could cause RCV_SEQ to be advanced after data restoration in the receive queue, enabling an out-of-order or invalid sequence handling when TCP_QUEUE_SEQ is used on non-empty queues. The connected documents (A...

kernel: mm/mprotect: only reference swap pfn page if type match

In the Linux kernel, the following vulnerability has been resolved: mm/mprotect: only reference swap pfn page if type match Yu Zhao reported a bug after the commit "mm/swap: Add swpoffsetpfn to fetch PFN from swap entry" added a check in swpoffsetpfn for swap type 1: kernel BUG at...

SUSE CVE-2005-3105

The mprotect code mprotect.c in Linux 2.6 on Itanium IA64 Montecito processors does not properly maintain cache coherency as required by the architecture, which allows local users to cause a denial of service and possibly corrupt data by modifying PTE protections...

SUSE CVE-2006-2071

Linux kernel 2.4.x and 2.6.x up to 2.6.16 allows local users to bypass IPC permissions and modify a readonly attachment of shared memory by using mprotect to give write permission to the attachment. NOTE: some original raw sources combined this issue with CVE-2006-1524, but they are different bug...

SUSE CVE-2010-4169

Use-after-free vulnerability in mm/mprotect.c in the Linux kernel before 2.6.37-rc2 allows local users to cause a denial of service via vectors involving an mprotect system call...

GSD-2022-1005028 mm/mprotect: only reference swap pfn page if type match

mm/mprotect: only reference swap pfn page if type match This is an automated ID intended to aid in discovery of potential security vulnerabilities. The actual impact and attack plausibility have not yet been proven. This ID is fixed in Linux Kernel version v5.19.6 by commit...

UBUNTU-CVE-2021-39802

In changepterange of mprotect.c , there is a possible way to make a shared mmap writable due to a permissions bypass. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android...

PT-2022-7341 · Google · Android Kernel

Name of the Vulnerable Software and Affected Versions: Android kernel versions affected versions not specified Description: The issue is related to a permissions bypass in the change pte range function of mprotect.c, which could allow making a shared mmap writable. This could lead to local...

ASB-A-213339151

In changepterange of mprotect.c , there is a possible way to make a shared mmap writable due to a permissions bypass. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation...

Default configuration

Wasmtime is an open source runtime for WebAssembly & WASI. Prior to versions 0.34.1 and 0.33.1, there exists a bug in the pooling instance allocator in Wasmtime's runtime where a failure to instantiate an instance for a module that defines an externref global will result in an invalid drop of a...

CVE-2022-23636 Invalid drop of partially-initialized instances in wasmtime

Wasmtime is an open source runtime for WebAssembly & WASI. Prior to versions 0.34.1 and 0.33.1, there exists a bug in the pooling instance allocator in Wasmtime's runtime where a failure to instantiate an instance for a module that defines an externref global will result in an invalid drop of a...

Solaris SunSSH 11.0 x86 - libpam Remote Root (3)

Exploit Title: Solaris SunSSH 11.0 x86 - libpam Remote Root 3 Exploit Author: Nathaniel Singer, Joe Rozner Date: 09/11/2020 CVE: 2020-14871 Vulnerable Versions: Oracle Solaris: 9 some releases, 10 all releases, 11.0 Description: CVE-2020-14871 is a critical pre-authentication via SSH stack-based...

Microsoft Azure Sphere Linux namespace ptrace unsigned code execution vulnerability

Summary An unsigned code execution vulnerability exists in the Linux namespace ptrace functionality of Microsoft Azure Sphere 21.01. Specially crafted shellcode could allow an adversary to execute unsigned code. An attacker can change the namespace and use ptrace to modify the code of a running...

AndroidSecNotes

原文 by 瘦蛟舞 0x00 序 随着移动安全越来越火,各种调试工具也都层出不穷,但因为环境和需求的不同,并没有工具是万能的。另外工具是死的,人是活的,如果能搞懂工具的原理再结合上自身的经验,你也可以创造出属于自己的调试武器。因此,笔者将会在这一系列文章中分享一些自己经常用或原创的调试工具以及手段,希望能对国内移动安全的研究起到一些催化剂的作用。 文章中所有提到的代码和工具都可以在我的github下载到,地址是: https://github.com/zhengmin1989/TheSevenWeapons 0x01 利用函数挂钩实现native层的hook...

Denial Of Service (DoS)

kernel is vulnerable to denial of service. A use-after-free flaw in the mprotect system call could allow a local, unprivileged user to cause a local denial of service...

Linux/ARM64 - Egghunter (PWN!PWN!) + execve("/bin/sh", NULL, NULL) + mprotect() Shellcod

/ Title: Linux/ARM64 - Egghunter PWN!PWN! + execve"/bin/sh", NULL, NULL + mprotect Shellcode 88 Bytes Date: 2019-06-30 Tested: Ubuntu 16.04 aarch64 Author: Ken Kitahara Compilation: gcc -o loader loader.c ubuntu@ubuntu:/works$ lsbrelease -a No LSB modules are available. Distributor ID: Ubuntu...

Netperf 2.6.0 - Stack-Based Buffer Overflow Exploit

Exploit Author: Juan Sacco - http://exploitpack.com Tested on: Kali i686 GNU/Linux Description: Netperf 2.6.0 s a benchmark tool than developed by Helett Packard that can be used to measure the performance of many different types of networking. It provides tests for both unidirectional troughput...

Netperf 2.6.0 - Stack-Based Buffer Overflow

Netperf 2.6.0 - Stack-Based Buffer Overflow Exploit Author: Juan Sacco - http://exploitpack.com Tested on: Kali i686 GNU/Linux Description: Netperf 2.6.0 s a benchmark tool than developed by Helett Packard that can be used to measure the performance of many different types of networking. It...