CVE-2011-4838

JRuby before 1.6.5.1 computes hash values without restricting the ability to trigger hash collisions predictably, which allows context-dependent attackers to cause a denial of service CPU consumption via crafted input to an application that maintains a hash table...

DEBIAN-CVE-2011-4838

JRuby before 1.6.5.1 computes hash values without restricting the ability to trigger hash collisions predictably, which allows context-dependent attackers to cause a denial of service CPU consumption via crafted input to an application that maintains a hash table...

Code injection

JRuby before 1.6.5.1 computes hash values without restricting the ability to trigger hash collisions predictably, which allows context-dependent attackers to cause a denial of service CPU consumption via crafted input to an application that maintains a hash table...

CVE-2011-4838

JRuby before 1.6.5.1 computes hash values without restricting the ability to trigger hash collisions predictably, which allows context-dependent attackers to cause a denial of service CPU consumption via crafted input to an application that maintains a hash table...

Rubinius Web表单哈希冲突拒绝服务漏洞

BUGTRAQ ID: 51196 Rubinius是一个运行Ruby程序的虚拟机，其带有Ruby的核心库。 Rubinius在哈希表单张贴和更新哈希表单时，哈希生成函数中存在错误，通过在HTTP POST请求中发送特制的表单，攻击者可利用此漏洞造成哈希冲突，导致较高的CPU消耗。 0 rubini 1.x 厂商补丁： rubini ------ 目前厂商还没有提供补丁或者升级程序，我们建议使用此软件的用户随时关注厂商的主页以获取最新版本： http://rubini.us/...

Ruby哈希冲突拒绝服务漏洞

BUGTRAQ ID: 51198 CVE ID: CVE-2011-4815 Ruby一种为简单快捷对象导向编程（面向对象程序设计）而创的脚本语言。 Ruby处理在哈希表单张贴和更新哈希表单时，哈希生成函数中存在错误，通过在HTTP POST请求中发送特制的表单，攻击者可利用此漏洞造成哈希冲突，导致较高的CPU消耗。 0 Ruby 1.x 厂商补丁： Yukihiro Matsumoto ------------------ 目前厂商已经发布了升级补丁以修复这个安全问题，请到厂商的主页下载： http://www.ruby-lang.org/...

Check Point response to "DoS through hash table against Web Application Platforms" (CVE-2011-4838)

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Multiple Programming Language Implementations Vulnerable to Hash Table Collision Attacks

No description provided by source. US-CERT is aware of reports stating that multiple programming language implementations, including web platforms, are vulnerable to hash table collision attacks. This vulnerability could be used by an attacker to launch a denial-of-service attack against websites...

CVE-2011-4815

Ruby aka CRuby before 1.8.7-p357 computes hash values without restricting the ability to trigger hash collisions predictably, which allows context-dependent attackers to cause a denial of service CPU consumption via crafted input to an application that maintains a hash table...

CVE-2011-4815 ruby: hash table collisions CPU usage DoS (oCERT-2011-003)

Ruby aka CRuby before 1.8.7-p357 computes hash values without restricting the ability to trigger hash collisions predictably, which allows context-dependent attackers to cause a denial of service CPU consumption via crafted input to an application that maintains a hash table...

Hashtable Collisions

This module uses a denial-of-service DoS condition appearing in a variety of programming languages. This vulnerability occurs when storing multiple values in a hash table and all values have the same hash value. This can cause a web server parsing the POST parameters issued with a request into a...

Hash table implementations vulnerable to algorithmic complexity attacks

Overview Some programming language implementations do not sufficiently randomize their hash functions or provide means to limit key collision attacks, which can be leveraged by an unauthenticated attacker to cause a denial-of-service DoS condition. Description Many applications, including common...

Multiple Programming Language Implementations Vulnerable to Hash Table Collision Attacks

US-CERT is aware of reports stating that multiple programming language implementations, including web platforms, are vulnerable to hash table collision attacks. This vulnerability could be used by an attacker to launch a denial-of-service attack against websites using affected products. The Ruby...

CVE-2011-4838 jruby: hash table collisions DoS (oCERT-2011-003)

JRuby before 1.6.5.1 computes hash values without restricting the ability to trigger hash collisions predictably, which allows context-dependent attackers to cause a denial of service CPU consumption via crafted input to an application that maintains a hash table...

postgresql: Integer overflow in hash table size calculation

Integer overflow in src/backend/executor/nodeHash.c in PostgreSQL 8.4.1 and earlier, and 8.5 through 8.5alpha2, allows remote authenticated users to cause a denial of service daemon crash via a SELECT statement with many LEFT JOIN clauses, related to certain hashtable size calculations...

postgresql: Integer overflow in hash table size calculation

Integer overflow in src/backend/executor/nodeHash.c in PostgreSQL 8.4.1 and earlier, and 8.5 through 8.5alpha2, allows remote authenticated users to cause a denial of service daemon crash via a SELECT statement with many LEFT JOIN clauses, related to certain hashtable size calculations...

postgresql: Integer overflow in hash table size calculation

Integer overflow in src/backend/executor/nodeHash.c in PostgreSQL 8.4.1 and earlier, and 8.5 through 8.5alpha2, allows remote authenticated users to cause a denial of service daemon crash via a SELECT statement with many LEFT JOIN clauses, related to certain hashtable size calculations...

The use of PMK Hashes for the WPA/WPA2 high-speed hack-vulnerability warning-the black bar safety net

Author: Christopher Yang This article relates to the Hash key based on the Cowpatty under the genpmk tool to make, this is the ZerOnesecurityteam is the wireless security group by with Aircrack-ng airolib-ng and related tools of convenience, versatility and repeated the comparison after the final...

PostgreSQL哈希表大小计算整数溢出漏洞

CVECAN ID: CVE-2010-0733 PostgreSQL是一款高级对象－关系型数据库管理系统，支持扩展的SQL标准子集。 PostgreSQL的src/backend/executor/nodeHash.c文件在计算哈希表大小时存在整数溢出漏洞，通过认证的用户可以通过发送包含有大量LEFT JOIN子句的SELECT语句触发这个溢出，导致服务崩溃。 PostgreSQL PostgreSQL 8.5 - 8.5 alpha2 PostgreSQL PostgreSQL 8.4.1 厂商补丁： PostgreSQL ----------...

Red Hat Linux Kernel路由实现多个远程拒绝服务漏洞

BUGTRAQ ID: 37875 CVE ID: CVE-2009-4272 Linux Kernel是开放源码操作系统Linux所使用的内核。 Red Hat版本的Linux Kernel的路由实现中存在两个拒绝服务漏洞。如果攻击者能够通过特制报文导致在路由哈希表中出现大量冲突以触发紧急路由flush，就会触发死锁；其次，如果禁用了内核路由缓存，在路由查询后会留下未初始化的指针，导致内核忙碌。 RedHat Linux 5.x 厂商补丁： RedHat ------ RedHat已经为此发布了一个安全公告（RHSA-2010:0046-01）以及相应补丁:...