FreeBSD : xserver -- multiple issue with X client request handling (27b9b2f0-8081-11e4-b4ca-bcaec565249c)

Alan Coopersmith reports : Ilja van Sprundel, a security researcher with IOActive, has discovered a large number of issues in the way the X server code base handles requests from X clients, and has worked with X.Org's security team to analyze, confirm, and fix these issues. The vulnerabilities...

Important: Red Hat Security Advisory: libXfont security update

Updated libXfont packages that fix three security issues are now available for Red Hat Enterprise Linux 6 and 7. Red Hat Product Security has rated this update as having Important security impact. Common Vulnerability Scoring System CVSS base scores, which give detailed severity ratings, are...

UFONet - DDoS attacks via Web Abuse (XSS/CSRF)

UFONet - is a tool designed to launch DDoS attacks against a target, using 'Open Redirect' vectors on third party web applications, like botnet. See this links for more info: - CWE-601:Open Redirect - OWASP:URL Redirector Abuse Main features: --version show program's version number and exit -v,...

FreeBSD : xorg-server -- use-after-free (9a57c607-3cab-11e3-b4d9-bcaec565249c)

Alan Coopersmith reports : Pedro Ribeiro pedrib at gmail.com reported an issue to the X.Org security team in which an authenticated X client can cause an X server to use memory after it was freed, potentially leading to crash and/or memory corruption. %NASLMINLEVEL 70300 C Tenable Network Securit...

xorg: xrdb code execution via crafted X client hostname

xrdb.c in xrdb before 1.0.9 in X.Org X11R7.6 and earlier allows remote attackers to execute arbitrary commands via shell metacharacters in a hostname obtained from a 1 DHCP or 2 XDMCP message...

DEBIAN-CVE-2007-4752

ssh in OpenSSH before 4.7 does not properly handle when an untrusted cookie cannot be created and uses a trusted X11 cookie instead, which allows attackers to violate intended policy and gain privileges by causing an X client to be treated as trusted...

GLSA-200611-03 : NVIDIA binary graphics driver: Privilege escalation vulnerability

The remote host is affected by the vulnerability described in GLSA-200611-03 NVIDIA binary graphics driver: Privilege escalation vulnerability Rapid7 reported a boundary error in the NVIDIA binary graphics driver that leads to a buffer overflow in the accelerated rendering functionality. Impact :...

NVIDIA binary graphics driver: Privilege escalation vulnerability

Background The NVIDIA binary graphics driver from NVIDIA Corporation provides the kernel module and the GL modules for graphic acceleration on the NVIDIA based graphic cards. Description Rapid7 reported a boundary error in the NVIDIA binary graphics driver that leads to a buffer overflow in the...

NVidia Linux二进制图形驱动缓冲区溢出漏洞

NVidia是世界领先的图形处理芯片和显卡制造商。 NVIDIA的二进制blob驱动在加速渲染glyphs（文本字符数据）时存在缓冲区溢出，允许攻击者向内存中的任意位置写入数据。 XRender扩展提供一个名为XRenderCompositeString8的客户端函数要求X服务器在屏幕上渲染glyphs。服务程序的ProcRenderCompositeGlpyhs函数会处理这个请求，从渲染请求中提取出glyphs，创建一个glyph列表，然后通过注册的回调函数调用图形驱动。...

CVE-2001-0766: Improper Handling of Case Sensitivity

Apache on MacOS X Client 10.0.3 with the HFS+ file system allows remote attackers to bypass access restrictions via a URL that contains some characters whose case is not matched by Apache's filters...

XFree86: Various nasty libX11 holes

Hi, I'll summarize the impact and recommendations before I paste a mail which goes into technical details of the flaws. SUMMARY ======= Various coding flaws exist in libX11. Whilst this may not sound too serious, it is, for two reasons. They are 1 Various X client programs foolishly have privileg...