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[ GLSA 200806-04 ] rdesktop: Multiple vulnerabilities
From: Pierre-Yves Rofes <py () gentoo org>
Date: Sat, 14 Jun 2008 21:15:17 +0200
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 200806-04 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - http://security.gentoo.org/ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Severity: Normal Title: rdesktop: Multiple vulnerabilities Date: June 14, 2008 Bugs: #220911 ID: 200806-04 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Synopsis ======== Multiple vulnerabilities in rdesktop may lead to the execution of arbitrary code or a Denial of Service. Background ========== rdesktop is an open source Remote Desktop Protocol (RDP) client. Affected packages ================= ------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 net-misc/rdesktop < 1.6.0 >= 1.6.0 Description =========== An anonymous researcher reported multiple vulnerabilities in rdesktop via iDefense Labs: * An integer underflow error exists in the function iso_recv_msg() in the file iso.c which can be triggered via a specially crafted RDP request, causing a heap-based buffer overflow (CVE-2008-1801). * An input validation error exists in the function process_redirect_pdu() in the file rdp.c which can be triggered via a specially crafted RDP redirect request, causing a BSS-based buffer overflow (CVE-2008-1802). * An integer signedness error exists in the function xrealloc() in the file rdesktop.c which can be be exploited to cause a heap-based buffer overflow (CVE-2008-1803). Impact ====== An attacker could exploit these vulnerabilities by enticing a user to connect to a malicious RDP server thereby allowing the attacker to execute arbitrary code or cause a Denial of Service. Workaround ========== There is no known workaround at this time. Resolution ========== All rdesktop users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose ">=net-misc/rdesktop-1.6.0" References ========== [ 1 ] CVE-2008-1801 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-1801 [ 2 ] CVE-2008-1802 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-1802 [ 3 ] CVE-2008-1803 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-1803 Availability ============ This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-200806-04.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/2.5 -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.7 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iD8DBQFIVBjEuhJ+ozIKI5gRAk9/AJ9XFUHlPPvGre9hf8j4Xu07Cxus1ACdEyVZ FC+fK8NQn/BfV4zsu9ooARo= =u6DV -----END PGP SIGNATURE----- _______________________________________________ Full-Disclosure - We believe in it. Charter: http://lists.grok.org.uk/full-disclosure-charter.html Hosted and sponsored by Secunia - http://secunia.com/
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- [ GLSA 200806-04 ] rdesktop: Multiple vulnerabilities Pierre-Yves Rofes (Jun 14)