OpenBSD 4.6 / NetBSD 5.0.1 - 'printf(1)' Format String Parsing Denial of Service

source: https://www.securityfocus.com/bid/36884/info OpenBSD and NetBSD are prone to a denial-of-service vulnerability because they fail to properly parse format strings to the 'printf1' function. An attacker can exploit this issue to cause applications using the vulnerable call to crash with a...

libc:fts_*() Denial Of Service

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 libc:fts Multiple Denial of Service Author: Maksymilian Arciemowicz SecurityReason.com Date: - - Dis.: 03.08.2009 - - Pub.: 02.10.2009 We are going inform all vendors, about this problem. Affected Software official: - - OpenBSD 4.5 fix available - -...

Linux each version of the local root password cracking ideas methods-vulnerability warning-the black bar safety net

RedHat/CentOS/Fedora system password cracking 1. In the grub Options menu press E to enter edit mode 2. Edit kernel that the final plus S or Single 3. Press B to boot into single-user mode 4. ENTER after executing the following command mount-t proc proc /proc mount-o remount,rw / passwd sync rebo...

CVE-2009-2793

The kernel in NetBSD, probably 5.0.1 and earlier, on x86 platforms does not properly handle a pre-commit failure of the iret instruction, which might allow local users to gain privileges via vectors related to a tempEIP pseudocode variable that is outside of the code-segment limits...

Code injection

The kernel in NetBSD, probably 5.0.1 and earlier, on x86 platforms does not properly handle a pre-commit failure of the iret instruction, which might allow local users to gain privileges via vectors related to a tempEIP pseudocode variable that is outside of the code-segment limits...

CVE-2009-2793

The kernel in NetBSD, probably 5.0.1 and earlier, on x86 platforms does not properly handle a pre-commit failure of the iret instruction, which might allow local users to gain privileges via vectors related to a tempEIP pseudocode variable that is outside of the code-segment limits...

CVE-2009-2793

The CVE-2009-2793 entry concerns the NetBSD kernel on x86, probably 5.0.1 and earlier. The root cause is a pre-commit failure of the iret (interrupt return) path which can yield an incorrect temporary instruction pointer (tempEIP) outside code-segment limits, potentially allowing local privilege ...

NetBSD IRET通用保护错误处理本地权限提升漏洞

BUGTRAQ ID: 36430 CVECAN ID: CVE-2009-2793 NetBSD是一款免费开放源代码的UNIX性质的操作系统。 在Intel架构上，操作系统内核完成了对中断或异常的服务后通常会使用iret返回到用户态。iret指令会恢复执行继续所需的上下文，如代码段、指令指针、标记等。在受保护模式中iret会分为两个不同的阶段执行，分别为提交前阶段（pre-commit，权限级别改变之前）和提交后阶段（post- commit，权限级别改变后）。可在以下伪代码中找到提交点： IF new mode != 64-Bit Mode THEN IF tempEIP is no...

SecurityReason: glibc x<=2.10.1 stdio/strfmon.c Multiple vulnerabilities

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 glibc x=2.10.1 stdio/strfmon.c Multiple vulnerabilities Author: Maksymilian Arciemowicz http://SecurityReason.com Date: - - Dis.: 10.03.2008 - - Pub.: 17.09.2009 CVE: CVE-2008-1391 Risk: High Affected Software tested 27.08.2009: - - Fedora 11 - -...

NetBSD 5.0.1 - IRET General Protection Fault Handling Privilege Escalation

NetBSD 5.0.1 - IRET General Protection Fault Handling Privilege Escalation / source: https://www.securityfocus.com/bid/36430/info NetBSD is prone to a local privilege-escalation vulnerability. A local attacker may exploit this issue to cause the kernel stack to become desynchronized. This may all...

NetBSD 5.0.1 - 'IRET' General Protection Fault Handling Privilege Escalation

/ source: https://www.securityfocus.com/bid/36430/info NetBSD is prone to a local privilege-escalation vulnerability. A local attacker may exploit this issue to cause the kernel stack to become desynchronized. This may allow the attacker to gain elevated privileges or may aid in further attacks. ...

tnftpd 'ftp://' CSRF Vulnerability

tnftpd server is prone to a cross-site request forgery CSRF vulnerability. SPDX-FileCopyrightText: 2009 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only CPE =...

FreeBSD <= 6.1 kqueue() NULL pointer dereference

FreeBSD = 6.1 suffers from classical check/use race condition on SMP systems in kevent syscall, leading to kernel mode NULL pointer dereference. It can be triggered by spawning two threads: 1st thread looping on open and close syscalls, and the 2nd thread looping on kevent, trying to add possibly...

CVE-2009-0687

The pftestrule function in OpenBSD Packet Filter PF, as used in OpenBSD 4.2 through 4.5, NetBSD 5.0 before RC3, MirOS 10 and earlier, and MidnightBSD 0.3-current allows remote attackers to cause a denial of service panic via crafted IP packets that trigger a NULL pointer dereference during...

NetBSD SHA2实现存在缓冲区溢出漏洞

Bugraq ID: 35853 NetBSD是一款基于BSD的操作系统。 NetBSD SHA2实现存在边界错误，本地攻击者可以利用漏洞触发缓冲区溢出，可能以应用程序权限执行任意指令。 程序使用sys/sha2.h中的SHA2实现，链接libcrypto库可被4或者8个字节的固定内容溢出。溢出发生于HASH INIT函数调用过程中如SHA256Init，init函数传递错误的上下文大小作为memset参数，可在之后的拷贝过程中覆盖缓冲区之后的4 字节内容。 NetBSD NetBSD 4.0.2 NetBSD NetBSD 4.0.1 NetBSD NetBSD 5.0 NetBSD...

Design/Logic Flaw

The pamunix module in OpenPAM in NetBSD 4.0 before 4.0.2 and 5.0 before 5.0.1 allows local users to change the current root password if it is already known, even when they are not in the wheel group...

CVE-2009-2482

The pamunix module in OpenPAM in NetBSD 4.0 before 4.0.2 and 5.0 before 5.0.1 allows local users to change the current root password if it is already known, even when they are not in the wheel group...

Null pointer dereference

libprop/propobject.c in proplib in NetBSD 4.0 and 4.0.1 allows local users to cause a denial of service NULL pointer dereference and kernel panic via a malformed externalized plist XML form containing an undefined element...

CVE-2009-2483

libprop/propobject.c in proplib in NetBSD 4.0 and 4.0.1 allows local users to cause a denial of service NULL pointer dereference and kernel panic via a malformed externalized plist XML form containing an undefined element...

CVE-2009-2483

libprop/propobject.c in proplib in NetBSD 4.0 and 4.0.1 allows local users to cause a denial of service NULL pointer dereference and kernel panic via a malformed externalized plist XML form containing an undefined element...