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Mandrake: lynx CRLF injection vulnerability Print E-mail
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Posted by Team   
Mandrake The HTTP queries that lynx constructs are from arguments on the command line or the $WWW_HOME environment variable, but lynx does not properly sanitize special characters such as carriage returns or linefeeds.


                Mandrake Linux Security Update Advisory

Package name:           lynx
Advisory ID:            MDKSA-2003:023
Date:                   February 24th, 2003

Affected versions:      7.2, 8.0, 8.1, 8.2, 9.0,
                        Multi Network Firewall 8.2,
                        Single Network Firewall 7.2

Problem Description:

 A vulnerability was discovered in lynx, a text-mode web browser.  The
 HTTP queries that lynx constructs are from arguments on the command
 line or the $WWW_HOME environment variable, but lynx does not properly
 sanitize special characters such as carriage returns or linefeeds.
 Extra headers can be inserted into the request because of this, which
 can cause scripts that use lynx to fetch data from the wrong site from
 servers that use virtual hosting.


Updated Packages:

 Linux-Mandrake 7.2:
 51b4a07587e21fae8c22ee96dda08165  7.2/RPMS/
 3dc147ad3ce860da0b476b28c958b55b  7.2/SRPMS/

 Mandrake Linux 8.0:
 0e9f7fac97a924915829181b129feb64  8.0/RPMS/
 3dc147ad3ce860da0b476b28c958b55b  8.0/SRPMS/

 Mandrake Linux 8.0/PPC:
 8bead3da1f305cc99fa00b7e6e1b21fc  ppc/8.0/RPMS/
 3dc147ad3ce860da0b476b28c958b55b  ppc/8.0/SRPMS/

 Mandrake Linux 8.1:
 d70d1dc68846e77601e7648ad31e8407  8.1/RPMS/
 3dc147ad3ce860da0b476b28c958b55b  8.1/SRPMS/

 Mandrake Linux 8.1/IA64:
 3e342d5aed2f987fc156784a2a49e113  ia64/8.1/RPMS/
 3dc147ad3ce860da0b476b28c958b55b  ia64/8.1/SRPMS/

 Mandrake Linux 8.2:
 c2bc5c894bddc46b4ab7711691ba5b71  8.2/RPMS/
 3dc147ad3ce860da0b476b28c958b55b  8.2/SRPMS/

 Mandrake Linux 8.2/PPC:
 ead8f99e26c7aaeb59782b0f85150840  ppc/8.2/RPMS/
 3dc147ad3ce860da0b476b28c958b55b  ppc/8.2/SRPMS/

 Mandrake Linux 9.0:
 59fd26d160a9168588b3dde6a0405c5e  9.0/RPMS/
 3dc147ad3ce860da0b476b28c958b55b  9.0/SRPMS/

 Multi Network Firewall 8.2:
 c2bc5c894bddc46b4ab7711691ba5b71  mnf8.2/RPMS/
 3dc147ad3ce860da0b476b28c958b55b  mnf8.2/SRPMS/

 Single Network Firewall 7.2:
 51b4a07587e21fae8c22ee96dda08165  snf7.2/RPMS/
 3dc147ad3ce860da0b476b28c958b55b  snf7.2/SRPMS/

Bug IDs fixed (see for more information):

To upgrade automatically, use MandrakeUpdate.  The verification of md5
checksums and GPG signatures is performed automatically for you.

If you want to upgrade manually, download the updated package from one
of our FTP server mirrors and upgrade with "rpm -Fvh *.rpm".  A list of
FTP mirrors can be obtained from:

Please verify the update prior to upgrading to ensure the integrity of
the downloaded package.  You can do this with the command:

  rpm --checksig 

All packages are signed by MandrakeSoft for security.  You can obtain
the GPG public key of the Mandrake Linux Security Team from:

Please be aware that sometimes it takes the mirrors a few hours to

You can view other update advisories for Mandrake Linux at:

MandrakeSoft has several security-related mailing list services that
anyone can subscribe to.  Information on these lists can be obtained by

If you want to report vulnerabilities, please contact

Type Bits/KeyID     Date       User ID
pub  1024D/22458A98 2000-07-10 Linux Mandrake Security Team

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