rdesktop: Multiple vulnerabilities

rdesktop: Multiple vulnerabilities Multiple vulnerabilities in rdesktop may lead to the execution of arbitrary code or a Denial of Service. rdesktop 2008-06-14 2008-06-14 220911 remote 1.6.0 1.6.0

rdesktop is an open source Remote Desktop Protocol (RDP) client.

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).

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.

There is no known workaround at this time.

All rdesktop users should upgrade to the latest version:


    # emerge --sync
    # emerge --ask --oneshot --verbose ">=net-misc/rdesktop-1.6.0"

CVE-2008-1801 CVE-2008-1802 CVE-2008-1803 keytoaster vorlon mfleming