INFORMATION BULLETIN

S-291: rdesktop Vulnerabilities

[Debian Security Advisory DSA-1573-1]

May 13, 2008 19:00 GMT


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 ASSESSMENT:	The risk is MEDIUM. Remote exploitation of an integer underflow vulnerability allows attackers to execute arbitrary code with the privileges of the logged-in user.

CVSS 2 BASE SCORE: TEMPORAL SCORE: VECTOR:	7.5 5.9 (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:	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 *****]

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