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rdesktop Multiple Vulnerabilities
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Secunia Advisory:
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SA30118
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Release Date:
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2008-05-08
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Last Update:
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2008-05-12
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Popularity:
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3,540 views
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Critical:
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Moderately critical
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Impact:
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System access
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Where:
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From remote
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Solution Status:
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Vendor Patch
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| Software: | rdesktop 1.x
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| CVE reference: | CVE-2008-1801
CVE-2008-1802
CVE-2008-1803
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Description:
Some vulnerabilities have been reported in rdesktop, which can be exploited by malicious people to compromise a user's system.
1) An integer underflow error in iso.c when processing RDP requests can be exploited to cause a heap-based buffer overflow.
2) An input validation error in rdp.c when processing RDP redirect requests can be exploited to cause a BSS-based buffer overflow.
3) A signedness error within "xrealloc()" in rdesktop.c can be exploited to cause a heap-based buffer overflow.
Successful exploitation allows execution of arbitrary code but requires that a user is tricked into connecting to a malicious RDP server.
The vulnerabilities are reported in version 1.5.0. Other versions may also be affected.
Solution:
Update to version 1.6.0.
Provided and/or discovered by:
1) Discovered by an anonymous researcher and reported via iDefense Labs.
2) Discovered by an anonymous researcher and reported via iDefense Labs.
3) Discovered by an anonymous researcher and reported via iDefense Labs.
Changelog:
2008-05-12: Updated "Solution" section.
Original Advisory:
iDefense Labs:
http://labs.idefense.com/intelligence/vulnerabilities/display.php?id=696
http://labs.idefense.com/intelligence/vulnerabilities/display.php?id=697
http://labs.idefense.com/intelligence/vulnerabilities/display.php?id=698
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About this Secunia Advisory
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Please note: The information that this Secunia Advisory is based on comes from a third party unless stated otherwise.
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