Ubuntu Security Notice 646-1 - It was discovered that rdesktop did not properly validate the length of packet headers when processing RDP requests. If a user were tricked into connecting to a malicious server, an attacker could cause a denial of service or possible execute arbitrary code with the privileges of the user. Multiple buffer overflows were discovered in rdesktop when processing RDP redirect requests. If a user were tricked into connecting to a malicious server, an attacker could cause a denial of service or possible execute arbitrary code with the privileges of the user. It was discovered that rdesktop performed a signed integer comparison when reallocating dynamic buffers which could result in a heap-based overflow. If a user were tricked into connecting to a malicious server, an attacker could cause a denial of service or possible execute arbitrary code with the privileges of the user.
1a39857e464c47ce103fd843802e8f3ac9a25c778331cb477c908a2d3d530407Gentoo Linux Security Advisory GLSA 200806-04 - Multiple vulnerabilities in rdesktop may lead to the execution of arbitrary code or a Denial of Service. Versions less than 1.6.0 are affected.
93b80a2b016e482abf974d6cfebc0ba4bf80ff0a858941c7b2680fbb40da2f5cMandriva Linux Security Advisory - Several vulnerabilities were discovered in rdesktop, a Remote Desktop Protocol client. An integer underflow vulnerability allowed attackers to cause a denial of service (crash) and possibly execute arbitrary code with the privileges of the logged-in user. A buffer overflow vulnerability allowed attackers to execute arbitrary code with the privileges of the logged-in user. An integer signedness vulnerability allowed attackers to execute arbitrary code with the privileges of the logged-in user. In order for these vulnerabilities to be exploited, an attacker must persuade a targeted user to connect to a malicious RDP server.
db35b2491ffc6bcc8072e207eafd14eb6687885e6bd7c7e75eee998a45940f2fDebian Security Advisory 1573-1 - Several remote vulnerabilities have been discovered in rdesktop, a Remote Desktop Protocol client. Remote exploitation of an integer underflow vulnerability allows attackers to execute arbitrary code with the privileges of the logged-in user. Remote exploitation of a BSS overflow vulnerability allows attackers to execute arbitrary code with the privileges of the logged-in user. Remote exploitation of an integer signedness vulnerability allows attackers to execute arbitrary code with the privileges of the logged-in user.
f2e72e2980b2cc72e61d9fc682219452efef714383ca520593456a997cf92fddrdesktop version 1.5.0 integer underflow proof of concept exploit that takes advantage of iso_recv_msg().
76fb7c0182f22162b10ef53dc34f0663fab8c3ad651d898e08ac4c9bfc0f266aiDefense Security Advisory 05.07.08 - Remote exploitation of an integer underflow vulnerability in rdesktop, as included in various vendors' operating system distributions, allows attackers to execute arbitrary code with the privileges of the logged-in user. The vulnerability exists within the code responsible for reading in an RDP request. When reading a request, a 16-bit integer value that represents the number of bytes that follow is taken from the packet. This value is then decremented by 4, and used to calculate how many bytes to read into a heap buffer. The subtraction operation can underflow, which will then lead to the heap buffer being overflowed. iDefense confirmed the existence of this vulnerability in rdesktop version 1.5.0. Previous versions may also be affected.
1092f657e4d4b947c1ee615da74f97b5643e05d42dbeb1e99d0b4d8092a260b7
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