Debian Bug report logs - #480133
rdesktop: CVE-2008-1801 remote code execution

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Package: rdesktop; Maintainer for rdesktop is Laszlo Boszormenyi (GCS) <>; Source for rdesktop is src:rdesktop.

Reported by: Nico Golde <>

Date: Thu, 8 May 2008 08:54:01 UTC

Severity: grave

Tags: patch, security

Fixed in version rdesktop/1.5.0-4+cvs20071006

Done: Laszlo Boszormenyi (GCS) <>

Bug is archived. No further changes may be made.

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Report forwarded to, Laszlo Boszormenyi (GCS) <>:
Bug#480133; Package rdesktop. Full text and rfc822 format available.

Acknowledgement sent to Nico Golde <>:
New Bug report received and forwarded. Copy sent to Laszlo Boszormenyi (GCS) <>. Full text and rfc822 format available.

Message #5 received at (full text, mbox):

From: Nico Golde <>
Subject: rdesktop: CVE-2008-1801 remote code execution
Date: Thu, 8 May 2008 10:51:34 +0200
[Message part 1 (text/plain, inline)]
Package: rdesktop
Severity: grave
Tags: security, patch

the following CVE (Common Vulnerabilities & Exposures) id was
published for rdesktop.

| 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.

Note, the CVE id for this is not yet online on the mitre site.

If you fix the vulnerability please also make sure to include the
CVE id in your changelog entry.

For further information see:


Nico Golde - - - GPG: 0x73647CFF
For security reasons, all text in this mail is double-rot13 encrypted.
[Message part 2 (application/pgp-signature, inline)]

Reply sent to Laszlo Boszormenyi (GCS) <>:
You have taken responsibility. Full text and rfc822 format available.

Notification sent to Nico Golde <>:
Bug acknowledged by developer. Full text and rfc822 format available.

Message #10 received at (full text, mbox):

From: Laszlo Boszormenyi (GCS) <>
Subject: Bug#480133: fixed in rdesktop 1.5.0-4+cvs20071006
Date: Sat, 10 May 2008 08:47:17 +0000
Source: rdesktop
Source-Version: 1.5.0-4+cvs20071006

We believe that the bug you reported is fixed in the latest version of
rdesktop, which is due to be installed in the Debian FTP archive:

  to pool/main/r/rdesktop/rdesktop_1.5.0-4+cvs20071006.diff.gz
  to pool/main/r/rdesktop/rdesktop_1.5.0-4+cvs20071006.dsc
  to pool/main/r/rdesktop/rdesktop_1.5.0-4+cvs20071006_amd64.deb

A summary of the changes between this version and the previous one is

Thank you for reporting the bug, which will now be closed.  If you
have further comments please address them to,
and the maintainer will reopen the bug report if appropriate.

Debian distribution maintenance software
Laszlo Boszormenyi (GCS) <> (supplier of updated rdesktop package)

(This message was generated automatically at their request; if you
believe that there is a problem with it please contact the archive
administrators by mailing

Hash: SHA1

Format: 1.8
Date: Thu, 08 May 2008 18:54:16 +0200
Source: rdesktop
Binary: rdesktop
Architecture: source amd64
Version: 1.5.0-4+cvs20071006
Distribution: unstable
Urgency: high
Maintainer: Laszlo Boszormenyi (GCS) <>
Changed-By: Laszlo Boszormenyi (GCS) <>
 rdesktop   - RDP client for Windows NT/2000 Terminal Server
Closes: 480133 480134 480135
 rdesktop (1.5.0-4+cvs20071006) unstable; urgency=high
   * Fix three security bugs by backporting them to this CVS snapshot, namely
     CVE-2008-1801 , CVE-2008-1802 and CVE-2008-1803
     (closes: #480133, #480134, #480135).
 1ded25bab897d8650068f05d6b4ec510ada5e7cd 1071 rdesktop_1.5.0-4+cvs20071006.dsc
 dfa9fdd6a438a958a7bbd878b532fc90a9dd68df 233418 rdesktop_1.5.0-4+cvs20071006.diff.gz
 4893aadce4bc53dbb107dd146d7d851f1eb8401b 144940 rdesktop_1.5.0-4+cvs20071006_amd64.deb
 a893b98256ab5cf28675c9c4eb8fbb0d3141e51daebbfabbe8c1a91bd398c47a 1071 rdesktop_1.5.0-4+cvs20071006.dsc
 f2d34edae95d23a8ae411ebef1d061ff5e0483aab2e7599d4685e0b150f4301f 233418 rdesktop_1.5.0-4+cvs20071006.diff.gz
 455f84d8311dd9b8aae511ef731d6be5fa188b449147cadee68580ac5d42ea4a 144940 rdesktop_1.5.0-4+cvs20071006_amd64.deb
 49bae2acdb4fa2b0e963cd1feaadf7eb 1071 x11 optional rdesktop_1.5.0-4+cvs20071006.dsc
 3104a3bd7ecbf22794e882bb340bcf44 233418 x11 optional rdesktop_1.5.0-4+cvs20071006.diff.gz
 35515f467b14eb59cbf449ba70016d7a 144940 x11 optional rdesktop_1.5.0-4+cvs20071006_amd64.deb

Version: GnuPG v1.4.9 (GNU/Linux)


Bug archived. Request was from Debbugs Internal Request <> to (Fri, 13 Jun 2008 07:31:55 GMT) Full text and rfc822 format available.

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