drucken bookmarks versenden konfigurieren admin pdf Sicherheit: Unsichere umask in xinetd
Name: |
Unsichere umask in xinetd |
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ID: |
MDKSA-2001:055-1 |
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Distribution: |
Mandrake |
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Plattformen: |
Mandrake 7.2, Mandrake 8.0, Mandrake Single Network Firewall 7.2 |
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Datum: |
Fr, 6. Juli 2001, 13:00 |
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Referenzen: |
Keine Angabe |
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Applikationen: |
xinetd |
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Originalnachricht |
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1
________________________________________________________________________
Mandrake Linux Security Update Advisory ________________________________________________________________________
Package name: xinetd Date: July 5th, 2001 Original Advisory Date: June 11th, 2001 Advisory ID: MDKSA-2001:055-1
Affected versions: 7.2, 8.0, Single Network Firewall 7.2 ________________________________________________________________________
Problem Description:
A bug exists in xinetd as shipped with Mandrake Linux 8.0 dealing with TCP connections with the WAIT state that prevents linuxconf-web from working properly. As well, xinetd contains a security flaw in which it defaults to a umask of 0. This means that applications using the xinetd umask that do not set permissions themselves (like SWAT, a web configuration tool for Samba), will create world writable files. This update sets the default umask to 022.
Update:
This update forces the TMPDIR to /tmp instead of obtaining it from the root user by default, which uses /root/tmp. As well, this version of xinetd also fixed a possible buffer overflow in the logging code that was reported by zen-parse on bugtraq, but was not mentioned in the previous advisory. ________________________________________________________________________
References:
http://www.securityfocus.com/bid/2826 http://www.securityfocus.com/bid/2840 ________________________________________________________________________
Please verify the update prior to upgrading to ensure the integrity of the downloaded package. You can do this with the command: rpm --checksig package.rpm You can get the GPG public key of the Mandrake Linux Security Team at http://www.linux-mandrake.com/en/security/RPM-GPG-KEYS If you use MandrakeUpdate, the verification of md5 checksum and GPG signature is performed automatically for you.
Linux-Mandrake 7.2: 681f8a35afdaea2781d4fc32d93993ab 7.2/RPMS/xinetd-2.3.0-1.2mdk.i586.rpm 1b3650c4d3bf4f110a795639fbf4000b 7.2/SRPMS/xinetd-2.3.0-1.2mdk.src.rpm
Mandrake Linux 8.0: d9e1bdc5a29712a75608c4753f6d6490 8.0/RPMS/xinetd-2.3.0-1.1mdk.i586.rpm 9f95def40b777f13fc8339bf321b9547 8.0/RPMS/xinetd-ipv6-2.3.0-1.1mdk.i586.rpm 5820ae84905e550320601fe422a9a1b4 8.0/SRPMS/xinetd-2.3.0-1.1mdk.src.rpm
Single Network Firewall 7.2: 681f8a35afdaea2781d4fc32d93993ab snf7.2/RPMS/xinetd-2.3.0-1.2mdk.i586.rpm 1b3650c4d3bf4f110a795639fbf4000b snf7.2/SRPMS/xinetd-2.3.0-1.2mdk.src.rpm ________________________________________________________________________
Bug IDs fixed (see https://qa.mandrakesoft.com for more information):
3610 - linuxconf denial of service ________________________________________________________________________
To upgrade automatically, use MandrakeUpdate.
If you want to upgrade manually, download the updated package from one of our FTP server mirrors and upgrade with "rpm -Fvh *.rpm".
You can download the updates directly from one of the mirror sites listed at:
http://www.linux-mandrake.com/en/ftp.php3.
Updated packages are available in the "updates/[ver]/RPMS/" directory. For example, if you are looking for an updated RPM package for Mandrake Linux 8.0, look for it in "updates/8.0/RPMS/". Updated source RPMs are available as well, but you generally do not need to download them.
Please be aware that sometimes it takes the mirrors a few hours to update.
You can view other security advisories for Mandrake Linux at:
http://www.linux-mandrake.com/en/security/
If you want to report vulnerabilities, please contact
security@linux-mandrake.com ________________________________________________________________________
Mandrake Linux has two security-related mailing list services that anyone can subscribe to:
security-announce@linux-mandrake.com
Mandrake Linux's security announcements mailing list. Only announcements are sent to this list and it is read-only.
security-discuss@linux-mandrake.com
Mandrake Linux's security discussion mailing list. This list is open to anyone to discuss Mandrake Linux security specifically and Linux security in general.
To subscribe to either list, send a message to sympa@linux-mandrake.com with "subscribe [listname]" in the body of the message.
To remove yourself from either list, send a message to sympa@linux-mandrake.com with "unsubscribe [listname]" in the body of the message.
To get more information on either list, send a message to sympa@linux-mandrake.com with "info [listname]" in the body of the message.
Optionally, you can use the web interface to subscribe to or unsubscribe from either list:
http://www.linux-mandrake.com/en/flists.php3#security ________________________________________________________________________
Type Bits/KeyID Date User ID pub 1024D/22458A98 2000-07-10 Linux Mandrake Security Team <security@linux-mandrake.com>
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