__________________________________________________________ The U.S. Department of Energy Computer Incident Advisory Capability ___ __ __ _ ___ / | /_\ / \___ __|__ / \ \___ __________________________________________________________ INFORMATION BULLETIN rdesktop Vulnerabilities [Debian Security Advisory DSA-1573-1] May 13, 2008 19:00 GMT Number S-291 ______________________________________________________________________________ PROBLEM: Several remote vulnerabilities have been discovered in rdesktop, a Remote Desktop Protocol client. PLATFORM: Debian GNU/Linux 4.0 (etch) DAMAGE: Execute arbitrary code. SOLUTION: Upgrade to the appropriate version. ______________________________________________________________________________ VULNERABILITY The risk is MEDIUM. Remote exploitation of an integer underflow ASSESSMENT: vulnerability allows attackers to execute arbitrary code with the privileges of the logged-in user. ______________________________________________________________________________ CVSS 2 BASE SCORE: 7.5 TEMPORAL SCORE: 5.9 VECTOR: (AV:N/AC:L/Au:N/C:P/I:P/A:P/E:POC/RL:OF/RC:C) ______________________________________________________________________________ LINKS: CIAC BULLETIN: http://www.ciac.org/ciac/bulletins/s-291.shtml ORIGINAL BULLETIN: http://www.debian.org/security/2008/dsa-1573 CVE: http://www.cve.mitre.org/cgi-bin/cvename.cgi?name= CVE-2008-1801 CVE-2008-1802 CVE-2008-1803 ______________________________________________________________________________ [***** Start Debian Security Advisory DSA-1573-1 *****] Debian Security Advisory DSA-1573-1 rdesktop -- several vulnerabilities Date Reported: 11 May 2008 Affected Packages: rdesktop Vulnerable: Yes Security database references: In the Debian bugtracking system: Bug 480133, Bug 480134, Bug 480135. In Mitre's CVE dictionary: CVE-2008-1801, CVE-2008-1802, CVE-2008-1803. More information: Several remote vulnerabilities have been discovered in rdesktop, a Remote Desktop Protocol client. The Common Vulnerabilities and Exposures project identifies the following problems: CVE-2008-1801 Remote exploitation of an integer underflow vulnerability allows attackers to execute arbitrary code with the privileges of the logged-in user. CVE-2008-1802 Remote exploitation of a BSS overflow vulnerability allows attackers to execute arbitrary code with the privileges of the logged-in user. CVE-2008-1803 Remote exploitation of an integer signedness vulnerability allows attackers to execute arbitrary code with the privileges of the logged-in user. For the stable distribution (etch), these problems have been fixed in version 1.5.0-1etch2. For the unstable distribution (sid), these problems have been fixed in version 1.5.0-4+cvs20071006. We recommend that you upgrade your rdesktop package. Fixed in: Debian GNU/Linux 4.0 (etch) Source: http://security.debian.org/pool/updates/main/r/rdesktop/rdesktop_1.5.0-1etch2.diff.gz http://security.debian.org/pool/updates/main/r/rdesktop/rdesktop_1.5.0.orig.tar.gz http://security.debian.org/pool/updates/main/r/rdesktop/rdesktop_1.5.0-1etch2.dsc Alpha: http://security.debian.org/pool/updates/main/r/rdesktop/rdesktop_1.5.0-1etch2_alpha.deb AMD64: http://security.debian.org/pool/updates/main/r/rdesktop/rdesktop_1.5.0-1etch2_amd64.deb ARM: http://security.debian.org/pool/updates/main/r/rdesktop/rdesktop_1.5.0-1etch2_arm.deb HP Precision: http://security.debian.org/pool/updates/main/r/rdesktop/rdesktop_1.5.0-1etch2_hppa.deb Intel IA-32: http://security.debian.org/pool/updates/main/r/rdesktop/rdesktop_1.5.0-1etch2_i386.deb Intel IA-64: http://security.debian.org/pool/updates/main/r/rdesktop/rdesktop_1.5.0-1etch2_ia64.deb Little-endian MIPS: http://security.debian.org/pool/updates/main/r/rdesktop/rdesktop_1.5.0-1etch2_mipsel.deb PowerPC: http://security.debian.org/pool/updates/main/r/rdesktop/rdesktop_1.5.0-1etch2_powerpc.deb IBM S/390: http://security.debian.org/pool/updates/main/r/rdesktop/rdesktop_1.5.0-1etch2_s390.deb Sun Sparc: http://security.debian.org/pool/updates/main/r/rdesktop/rdesktop_1.5.0-1etch2_sparc.deb MD5 checksums of the listed files are available in the original advisory. [***** End Debian Security Advisory DSA-1573-1 *****] _______________________________________________________________________________ CIAC wishes to acknowledge the contributions of Debian for the information contained in this bulletin. _______________________________________________________________________________ CIAC, the Computer Incident Advisory Capability, is the computer security incident response team for the U.S. Department of Energy (DOE) and the emergency backup response team for the National Institutes of Health (NIH). CIAC is located at the Lawrence Livermore National Laboratory in Livermore, California. CIAC is also a founding member of FIRST, the Forum of Incident Response and Security Teams, a global organization established to foster cooperation and coordination among computer security teams worldwide. CIAC services are available to DOE, DOE contractors, and the NIH. 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Neither the United States Government nor the University of California nor any of their employees, makes any warranty, express or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, or represents that its use would not infringe privately owned rights. Reference herein to any specific commercial products, process, or service by trade name, trademark, manufacturer, or otherwise, does not necessarily constitute or imply its endorsement, recommendation or favoring by the United States Government or the University of California. The views and opinions of authors expressed herein do not necessarily state or reflect those of the United States Government or the University of California, and shall not be used for advertising or product endorsement purposes. 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