rdesktop: Multiple vulnerabilities
1.
Gentoo Linux Security Advisory
Version Information
| Advisory Reference |
GLSA 200806-04 / rdesktop |
| Release Date |
June 14, 2008 |
| Latest Revision |
June 14, 2008: 01 |
| Impact |
normal |
| Exploitable |
remote |
| Package |
Vulnerable versions |
Unaffected versions |
Architecture(s) |
| net-misc/rdesktop |
<
1.6.0 |
>=
1.6.0 |
All supported architectures
|
Related bugreports:
#220911
Synopsis
Multiple vulnerabilities in rdesktop may lead to the execution of arbitrary
code or a Denial of Service.
2.
Impact Information
Background
rdesktop is an open source Remote Desktop Protocol (RDP) client.
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.
3.
Resolution Information
Workaround
There is no known workaround at this time.
Resolution
All rdesktop users should upgrade to the latest version:
Code Listing 3.1: Resolution |
# emerge --sync
# emerge --ask --oneshot --verbose ">=net-misc/rdesktop-1.6.0"
|
4.
References
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