CVE-2016-4053

CVE-2016-4053 in Squid allowed public information disclosure of the server stack layout when processing ESI responses. The issue is documented across multiple advisories (Debian, Red Hat/CentOS, Fedora, Amazon ALAS) with fixes in various branches: Debians fixed squid3 3.1.20-2.2+deb7u5; Jessie/St...

Squid remote denial of service vulnerability analysis-vulnerability warning-the black bar safety net

Introduction The Squid Cache is an HTTP proxy server software. The Squid a wide range of uses, can be used as a cache server, may filter traffic help network security, but also can be used as a proxy server in the chain of a ring, the up-level proxy to forward the data or directly connected to th...

Squid assert函数引起的远程拒绝服务漏洞

来源链接：https://security.tencent.com/index.php/blog/msg/102 分析 笔者对其中一个漏洞补丁进行了分析,发现漏洞的缘由主要由assert函数引起的http://www.squid-cache.org/Versions/v3/3.5/changesets/squid-3.5-13991.patch 。 Assert函数在C程序中称为断言（assertion），用来提示一些可能存在的错误。主要用于程序调试。 函数用法： include void assert int exp ; 功能：...

CentOS Update for libcacard CESA-2016:0083 centos7

Check the version of libcacard SPDX-FileCopyrightText: 2016 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 ifdescription scriptoid"1.3.6.1.4.1.25623.1.0.882388";...

FreeBSD 远程拒绝服务攻击漏洞

0x01 漏洞复现 此漏洞是由于FreeBSD在处理ipv6数据包时，某函数对于数据的检验不严格，导致若传入的ipv6结构体某成员函数为NULL时，在后续函数调用中会触发assert，导致freebsd进入异常处理机制，内核崩溃引发系统重启，下面对此漏洞进行详细分析。 首先对于漏洞环境的搭建我不讲解了，在我的微信公众号上发了一篇文章专门讲解FreeBSD环境的搭建，包括内核调试，vmtools安装等等，环境搭建好之后，通过执行poc.py，发现程序重启，重启过程中，/var/crash下会生成崩溃信息。...

lldpd: denial of service

CVE-2015-5714 denial of service A buffer overflow has been discovered when handling management address TLV. When a remote device was advertising a too large management address while still respecting TLV boundaries, lldpd would crash due to a buffer overflow. - CVE-2015-5715 denial of service A...

lldpd -- Buffer overflow/Denial of service

The lldpd developer Vincent Bernat reports: A buffer overflow may allow arbitrary code execution only if hardening was disabled. Malformed packets should not make lldpd crash. Ensure we can handle them by not using assert in this part...

Updated openldap package fixes security vulnerability

By sending a crafted packet, an attacker can cause the OpenLDAP daemon to crash with a SIGABRT. This is due to an assert call in the bergetnext method in a/libraries/liblber/io.c that is hit when decoding tampered BER data CVE-2015-6908...

openldap: denial of service

By sending a crafted packet, an attacker can cause the OpenLDAP daemon to crash with a SIGABRT. This is due to an assert call within the bergetnext method io.c line 682 that is hit when decoding tampered BER data. The following proof of concept exploit can be used to trigger the condition: echo...

OpenLDAP 2.4.42 - ber_get_next Denial of Service

Exploit Title: OpenLDAP 2.4.42 bergetnext DOS Date: 11/09/15 Exploit Author: Denis Andzakovic - Security-Assessment.com Vendor Homepage: http://www.openldap.org/ Software Link: ftp://ftp.openldap.org/pub/OpenLDAP/openldap-release/openldap-2.4.42.tgz Version: Y Y \ / /| / \ /||| / / /.-. / /:wq...

BIND9 TKEY assert Dos

我们对 9.9.7-P1 和 9.9.7-P2 这两个版本进行了 diff,发现其主要 Patch 点位于 lib/dns/tkey.c文件中第 653 行 dnstkeyprocessquery 函数中: 在该函数中两次调用 dnsmessagefindname 函数来分别从 DNSSECTIONADDITIONAL 和 DNSSECTIONANSWER 中寻找 TEKY 记录,从代码中可以看到,第一次函数调用之前 na me 变量进行了初始化,被赋值为 NULL,而第二次调用前却未进行初始化。 dnsmessagefindname 函数原型位于 lib/dns/message.c...

SUSE SLED12 / SLES12 Security Update : libyaml (SUSE-SU-2015:0013-1)

This libyaml update fixes the following security issue : - bnc907809: assert failure when processing wrapped strings CVE-2014-9130 Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clea...

GLSA-201503-11 : OpenSSL: Multiple vulnerabilities (FREAK)

The remote host is affected by the vulnerability described in GLSA-201503-11 OpenSSL: Multiple vulnerabilities Multiple vulnerabilities have been found in OpenSSL. Please review the CVE identifiers and the upstream advisory referenced below for details: RSA silently downgrades to EXPORTRSA Client...

OpenSSL multiple security vulnerabilities

NULL pointer dereferences, reahable asserts, memory corruptions...

SuSE 11.3 Security Update : OpenSSL (SAT Patch Number 10470)

OpenSSL has been updated to fix various security issues : - A segmentation fault in ASN1TYPEcmp was fixed that could be exploited by attackers when e.g. client authentication is used. This could be exploited over SSL connections. CVE-2015-0286 - A ASN.1 structure reuse memory corruption was fixed...

RHEL 6 / 7 : libyaml (RHSA-2015:0100)

The remote Redhat Enterprise Linux 6 / 7 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2015:0100 advisory. YAML is a data serialization format designed for human readability and interaction with scripting languages. LibYAML is a YAML parser and emitter...

Apache qpid DoS

Multiple asserts...

USN-2461-1 libyaml vulnerability

Stanisław Pitucha and Jonathan Gray discovered that LibYAML did not properly handle wrapped strings. An attacker could create specially crafted YAML data to trigger an assert, causing a denial of service...

openSUSE Security Update : libyaml (openSUSE-SU-2014:1625-1)

This libyaml update fixes the following security issue : - bnc907809: assert failure when processing wrapped strings CVE-2014-9130 %NASLMINLEVEL 70300 C Tenable Network Security, Inc. The descriptive text and package checks in this plugin were extracted from openSUSE Security Update...

openSUSE Security Update : openvpn (openSUSE-SU-2014:1594-1)

openvpn was updated to fix a denial-of-service vulnerability where an authenticated client could stop the server by triggering a server-side ASSERT bnc907764,CVE-2014-8104, %NASLMINLEVEL 70300 C Tenable Network Security, Inc. The descriptive text and package checks in this plugin were extracted...