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Message-ID: <485418C5.3030905@gentoo.org> Date: Sat, 14 Jun 2008 21:15:17 +0200 From: Pierre-Yves Rofes <py@...too.org> To: gentoo-announce@...too.org Cc: full-disclosure@...ts.grok.org.uk, bugtraq@...urityfocus.com, security-alerts@...uxsecurity.com Subject: [ GLSA 200806-04 ] rdesktop: Multiple vulnerabilities -----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@...too.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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