A Gentoo is kiadta az xorg-server biztonsági frissítését (több hiba).
Számos sebezhetőséget találtak az Adobe Flash Playerben:
* a PCRE kódjával bekerült buffer overflow;
* input validációs hiba;
* memória jogosultságok hibás beállítása;
* DNS rebinding lehetőség;
* hiba a Socket és XMLSocket ActionScript 3 osztályok implementálásában;
* cross-domain policy file-ok elnéző kezelése (könnyebb XSS);
* XSS-lehetőség az "asfunction:" protokol kezelésében;
* HTTP Request Splitting lehetőség.
A hibáknak különböző hatásai vannak, a legsúlyosabb közülük tetszőleges kód
futtatására ad lehetőséget távolról egy preparált SWF file segítségével, a
file-t megnyitó felhasználó jogaival. Ezen kívül az áldozat gépe TCP
kapcsolat létesítésére bírható tetszőleges hoszttal, meg lehet kerülni a
Security Sandbox Modelt, érzékeny információk szerezhetők, XSS támadás
indítható, illetve tetszőleges hoszt portscan-elhető.
Buffer overflow-t fedeztek fel a libcdio library-ben. A hibát a cd-info.c,
illetve iso-info.c file "print_iso9660_recurse()" függvényében találták
hosszú file-nevek feldolgozásakor Joliet image-ekben. A hibát kihasználva
tetszőleges kód futtatható az áldozat jogaival, ha az megnyit egy preparált
iso-t a cd-info vagy iso-info alkalmazással.
Több hibát találtak a TikiWikiben:
* a tiki-listmovies.php file-ban a "movies" paraméter nem megfelelő
tisztítása;
* a tiki-special_chars.php "area_name" paramétere esetében szintén;
* közelebbről meg nem nevezett hibák a tiki-edit_css.php,
tiki-list_games.php, valamint tiki-g-admin_shared_source.php
file-okban.
A hibákat kihasználva directory traversal, érzékeny adatokhoz való
hozzáférés, valmint XSS érhető el. A nem részletezett hibák hatása
ismeretlen.
A Gentoo kiadta a hibák javítását.
--- Begin Message ---- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 200801-07:02 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - http://security.gentoo.org/ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Severity: Normal Title: Adobe Flash Player: Multiple vulnerabilities Date: January 20, 2008 Updated: January 20, 2008 Bugs: #193519 ID: 200801-07:02 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Synopsis ======== Multiple vulnerabilities have been identified, the worst of which allow arbitrary code execution on a user's system via a malicious Flash file. Background ========== The Adobe Flash Player is a renderer for the popular SWF file format, which is commonly used to provide interactive websites, digital experiences and mobile content. Affected packages ================= ------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 net-www/netscape-flash < 9.0.115.0 >= 9.0.115.0 Description =========== * Flash contains a copy of PCRE which is vulnerable to a heap-based buffer overflow (GLSA 200711-30, CVE-2007-4768). * Aaron Portnoy reported an unspecified vulnerability related to input validation (CVE-2007-6242). * Jesse Michael and Thomas Biege reported that Flash does not correctly set memory permissions (CVE-2007-6246). * Dan Boneh, Adam Barth, Andrew Bortz, Collin Jackson, and Weidong Shao reported that Flash does not pin DNS hostnames to a single IP addresses, allowing for DNS rebinding attacks (CVE-2007-5275). * David Neu reported an error withing the implementation of the Socket and XMLSocket ActionScript 3 classes (CVE-2007-4324). * Toshiharu Sugiyama reported that Flash does not sufficiently restrict the interpretation and usage of cross-domain policy files, allowing for easier cross-site scripting attacks (CVE-2007-6243). * Rich Cannings reported a cross-site scripting vulnerability in the way the "asfunction:" protocol was handled (CVE-2007-6244). * Toshiharu Sugiyama discovered that Flash allows remote attackers to modify HTTP headers for client requests and conduct HTTP Request Splitting attacks (CVE-2007-6245). Impact ====== A remote attacker could entice a user to open a specially crafted file (usually in a web browser), possibly leading to the execution of arbitrary code with the privileges of the user running the Adobe Flash Player. The attacker could also cause a user's machine to establish TCP sessions with arbitrary hosts, bypass the Security Sandbox Model, obtain sensitive information, port scan arbitrary hosts, or conduct cross-site-scripting attacks. Workaround ========== There is no known workaround at this time. Resolution ========== All Adobe Flash Player users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose ">=net-www/netscape-flash-9.0.115.0" Please be advised that unaffected packages of the Adobe Flash Player have known problems when used from within the Konqueror and Opera browsers. References ========== [ 1 ] CVE-2007-4324 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-4324 [ 2 ] CVE-2007-4768 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-4768 [ 3 ] CVE-2007-5275 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-5275 [ 4 ] CVE-2007-6242 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-6242 [ 5 ] CVE-2007-6243 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-6243 [ 6 ] CVE-2007-6244 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-6244 [ 7 ] CVE-2007-6245 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-6245 [ 8 ] CVE-2007-6246 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-6246 [ 9 ] GLSA 200711-30 http://www.gentoo.org/security/en/glsa/glsa-200711-30.xml Availability ============ This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-200801-07.xml Concerns? ========= Security is a primary focus of Gentoo Linux and ensuring the confidentiality and security of our users machines is of utmost importance to us. Any security concerns should be addressed to security@gentoo.org or alternatively, you may file a bug at http://bugs.gentoo.org. License ======= Copyright 2008 Gentoo Foundation, Inc; referenced text belongs to its owner(s). The contents of this document are licensed under the Creative Commons - Attribution / Share Alike license. http://creativecommons.org/licenses/by-sa/2.5Attachment: signature.asc
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--- Begin Message ---- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 200801-08 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - http://security.gentoo.org/ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Severity: Normal Title: libcdio: User-assisted execution of arbitrary code Date: January 20, 2008 Bugs: #203777 ID: 200801-08 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Synopsis ======== A buffer overflow vulnerability has been discovered in libcdio. Background ========== libcdio is a library for accessing CD-ROM and CD images. Affected packages ================= ------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 dev-libs/libcdio < 0.78.2-r4 >= 0.78.2-r4 Description =========== Devon Miller reported a boundary error in the "print_iso9660_recurse()" function in files cd-info.c and iso-info.c when processing long filenames within Joliet images. Impact ====== A remote attacker could entice a user to open a specially crafted ISO image in the cd-info and iso-info applications, resulting in the execution of arbitrary code with the privileges of the user running the application. Applications linking against shared libraries of libcdio are not affected. Workaround ========== There is no known workaround at this time. Resolution ========== All libcdio users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose ">=dev-libs/libcdio-0.78.2-r4" References ========== [ 1 ] CVE-2007-6613 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-6613 Availability ============ This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-200801-08.xml Concerns? ========= Security is a primary focus of Gentoo Linux and ensuring the confidentiality and security of our users machines is of utmost importance to us. Any security concerns should be addressed to security@gentoo.org or alternatively, you may file a bug at http://bugs.gentoo.org. License ======= Copyright 2008 Gentoo Foundation, Inc; referenced text belongs to its owner(s). The contents of this document are licensed under the Creative Commons - Attribution / Share Alike license. http://creativecommons.org/licenses/by-sa/2.5Attachment: signature.asc
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--- Begin Message ---- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 200801-09 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - http://security.gentoo.org/ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Severity: High Title: X.Org X server and Xfont library: Multiple vulnerabilities Date: January 20, 2008 Bugs: #204362 ID: 200801-09 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Synopsis ======== Multiple vulnerabilities have been discovered in the X.Org X server and Xfont library, allowing for a local privilege escalation and arbitrary code execution. Background ========== The X Window System is a graphical windowing system based on a client/server model. Affected packages ================= ------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 x11-base/xorg-server < 1.3.0.0-r4 >= 1.3.0.0-r4 2 x11-libs/libxfont < 1.3.1-r1 >= 1.3.1-r1 ------------------------------------------------------------------- 2 affected packages on all of their supported architectures. ------------------------------------------------------------------- Description =========== regenrecht reported multiple vulnerabilities in various X server extension via iDefense: * The XFree86-Misc extension does not properly sanitize a parameter within a PassMessage request, allowing the modification of a function pointer (CVE-2007-5760). * Multiple functions in the XInput extension do not properly sanitize client requests for swapping bytes, leading to corruption of heap memory (CVE-2007-6427). * Integer overflow vulnerabilities in the EVI extension and in the MIT-SHM extension can lead to buffer overflows (CVE-2007-6429). * The TOG-CUP extension does not sanitize an index value in the ProcGetReservedColormapEntries() function, leading to arbitrary memory access (CVE-2007-6428). * A buffer overflow was discovered in the Xfont library when processing PCF font files (CVE-2008-0006). * The X server does not enforce restrictions when a user specifies a security policy file and attempts to open it (CVE-2007-5958). Impact ====== Remote attackers could exploit the vulnerability in the Xfont library by enticing a user to load a specially crafted PCF font file resulting in the execution of arbitrary code with the privileges of the user running the X server, typically root. Local attackers could exploit this and the vulnerabilities in the X.org extensions to gain elevated privileges. If the X server allows connections from the network, these vulnerabilities could be exploited remotely. A local attacker could determine the existence of arbitrary files by exploiting the last vulnerability or possibly cause a Denial of Service. Workaround ========== Workarounds for some of the vulnerabilities can be found in the X.Org security advisory as listed under References. Resolution ========== All X.Org X server users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose ">=x11-base/xorg-server-1.3.0.0-r4" All X.Org Xfont library users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose ">=x11-libs/libXfont-1.3.1-r1" References ========== [ 1 ] CVE-2007-5760 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-5760 [ 2 ] CVE-2007-5958 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-5958 [ 3 ] CVE-2007-6427 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-6427 [ 4 ] CVE-2007-6428 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-6428 [ 5 ] CVE-2007-6429 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-6429 [ 6 ] CVE-2008-0006 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-0006 [ 7 ] X.Org security advisory http://lists.freedesktop.org/archives/xorg/2008-January/031918.html Availability ============ This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-200801-09.xml Concerns? ========= Security is a primary focus of Gentoo Linux and ensuring the confidentiality and security of our users machines is of utmost importance to us. Any security concerns should be addressed to security@gentoo.org or alternatively, you may file a bug at http://bugs.gentoo.org. License ======= Copyright 2008 Gentoo Foundation, Inc; referenced text belongs to its owner(s). The contents of this document are licensed under the Creative Commons - Attribution / Share Alike license. http://creativecommons.org/licenses/by-sa/2.5Attachment: signature.asc
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--- Begin Message ---- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 200801-10 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - http://security.gentoo.org/ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Severity: Low Title: TikiWiki: Multiple vulnerabilities Date: January 23, 2008 Bugs: #203265 ID: 200801-10 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Synopsis ======== Multiple vulnerabilities have been discovered in TikiWiki, some of them having unknown impact. Background ========== TikiWiki is an open source content management system written in PHP. Affected packages ================= ------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 www-apps/tikiwiki < 1.9.9 >= 1.9.9 Description =========== * Jesus Olmos Gonzalez from isecauditors reported insufficient sanitization of the "movies" parameter in file tiki-listmovies.php (CVE-2007-6528). * Mesut Timur from H-Labs discovered that the input passed to the "area_name" parameter in file tiki-special_chars.php is not properly sanitised before being returned to the user (CVE-2007-6526). * redflo reported multiple unspecified vulnerabilities in files tiki-edit_css.php, tiki-list_games.php, and tiki-g-admin_shared_source.php (CVE-2007-6529). Impact ====== A remote attacker can craft the "movies" parameter to run a directory traversal attack through a ".." sequence and read the first 1000 bytes of any arbitrary file, or conduct a cross-site scripting (XSS) attack through the "area_name" parameter. This attack can be exploited to execute arbitrary HTML and script code in a user's browser session, allowing for the theft of browser session data or cookies in the context of the affected web site. The impacts of the unspecified vulnerabilities are still unknown. Workaround ========== There is no known workaround at this time. Resolution ========== All TikiWiki users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose ">=www-apps/tikiwiki-1.9.9" References ========== [ 1 ] CVE-2007-6526 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-6526 [ 2 ] CVE-2007-6528 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-6528 [ 3 ] CVE-2007-6529 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-6529 Availability ============ This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-200801-10.xml Concerns? ========= Security is a primary focus of Gentoo Linux and ensuring the confidentiality and security of our users machines is of utmost importance to us. Any security concerns should be addressed to security@gentoo.org or alternatively, you may file a bug at http://bugs.gentoo.org. License ======= Copyright 2008 Gentoo Foundation, Inc; referenced text belongs to its owner(s). The contents of this document are licensed under the Creative Commons - Attribution / Share Alike license. http://creativecommons.org/licenses/by-sa/2.5Attachment: pgp4WoX3GogBD.pgp
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