CVSS: 9.8EPSS: 11%CPEs: 3EXPL: 3CVE-2021-31535 – libX11: missing request length checks
https://notcve.org/view.php?id=CVE-2021-31535
LookupCol.c in X.Org X through X11R7.7 and libX11 before 1.7.1 might allow remote attackers to execute arbitrary code. The libX11 XLookupColor request (intended for server-side color lookup) contains a flaw allowing a client to send color-name requests with a name longer than the maximum size allowed by the protocol (and also longer than the maximum packet size for normal-sized packets). The user-controlled data exceeding the maximum size is then interpreted by the server as additional X protocol requests and executed, e.g., to disable X server authorization completely. For example, if the victim encounters malicious terminal control sequences for color codes, then the attacker may be able to take full control of the running graphical session. El archivo LookupCol.c en X.Org X versiones hasta X11R7.7 y libX11 versiones anteriores a 1.7.1, podría permitir que atacantes remotos ejecuten código arbitrario. • http://packetstormsecurity.com/files/162737/libX11-Insufficient-Length-Check-Injection.html http://seclists.org/fulldisclosure/2021/May/52 http://www.openwall.com/lists/oss-security/2021/05/18/2 https://gitlab.freedesktop.org/xorg/lib/libx11/-/commit/8d2e02ae650f00c4a53deb625211a0527126c605 https://lists.apache.org/thread.html/r61db8e7dcb56dc000a5387a88f7a473bacec5ee01b9ff3f55308aacc%40%3Cdev.kafka.apache.org%3E https://lists.apache.org/thread.html/r61db8e7dcb56dc000a5387a88f7a473bacec5ee01b9ff3f55308aacc%40%3Cusers.kafka.apache.org%3E https:& • CWE-77: Improper Neutralization of Special Elements used in a Command ('Command Injection') CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') •
CVSS: 5.5EPSS: 1%CPEs: 4EXPL: 1CVE-2007-2437 – X.Org X Window System Xserver 1.3 - XRender Extension Divide by Zero Denial of Service
https://notcve.org/view.php?id=CVE-2007-2437
The X render (Xrender) extension in X.org X Window System 7.0, 7.1, and 7.2, with Xserver 1.3.0 and earlier, allows remote authenticated users to cause a denial of service (daemon crash) via crafted values to the (1) XRenderCompositeTrapezoids and (2) XRenderAddTraps functions, which trigger a divide-by-zero error. La extensión X render (Xrender) en X.org X Window System 7.0, 7.1, y 7.2, con Xserver 1.3.0 y anteriores, permite a usuarios remotos validados provocar denegación de servicio (caida de demonio) a través de valores manipulados en las funciones (1) XRenderCompositeTrapezoids y (2) XRenderAddTraps, lo cual dispara un error de división por cero. • https://www.exploit-db.com/exploits/29939 http://osvdb.org/34905 http://secunia.com/advisories/25121 http://sunsolve.sun.com/search/document.do?assetkey=1-26-102901-1 http://sunsolve.sun.com/search/document.do?assetkey=1-66-200067-1 http://www.rapid7.com/advisories/R7-0027.jsp http://www.securityfocus.com/bid/23741 http://www.securitytracker.com/id?1017984 http://www.vupen.com/english/advisories/2007/1601 http://www.vupen.com/english/advisories/2007/1658 https:/ •