Mandrake alert: Updated screen packages fix buffer overflow vulnerability
A vulnerability was discovered and fixed in screen by Timo Sirainen who found an exploitable buffer overflow that allowed privilege escalation. This vulnerability also has the potential to allow attackers to gain control of another user's screen session. The ability to exploit is not trivial and requires approximately 2GB of data to be transferred in order to do so.
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Mandrake Linux Security Update Advisory
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Package name: screen
Advisory ID: MDKSA-2003:113
Date: December 8th, 2003
Affected versions: 9.0, 9.1, 9.2, Corporate Server 2.1,
Multi Network Firewall 8.2
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Problem Description:
A vulnerability was discovered and fixed in screen by Timo Sirainen
who found an exploitable buffer overflow that allowed privilege
escalation. This vulnerability also has the potential to allow
attackers to gain control of another user's screen session. The
ability to exploit is not trivial and requires approximately 2GB
of data to be transferred in order to do so.
Updated packages are available that fix the vulnerability.
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References:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2003-0972
http://marc.theaimsgroup.com/?l=bugtraq&m=106995837813873&w=2
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Updated Packages:
Corporate Server 2.1:
757d420f6d823e26a487eff794490bbe corporate/2.1/RPMS/screen-3.9.11-4.1.C21mdk.i586.rpm
54336329e042b03ebca3c00ca0a1f0c3 corporate/2.1/SRPMS/screen-3.9.11-4.1.C21mdk.src.rpm
Corporate Server 2.1/x86_64:
bf60dabe82228d7f879c1fa232df2e20 x86_64/corporate/2.1/RPMS/screen-3.9.11-4.1.C21mdk.x86_64.rpm
54336329e042b03ebca3c00ca0a1f0c3 x86_64/corporate/2.1/SRPMS/screen-3.9.11-4.1.C21mdk.src.rpm
Mandrake Linux 9.0:
2ed29228596116d87146cb2f1eb75ad3 9.0/RPMS/screen-3.9.11-4.1.90mdk.i586.rpm
db59e945ca7dabc7d81df3388566feb9 9.0/SRPMS/screen-3.9.11-4.1.90mdk.src.rpm
Mandrake Linux 9.1:
4d1ce0bb5f0b8335b9f3da4520280fdb 9.1/RPMS/screen-3.9.13-2.1.91mdk.i586.rpm
025da8fcc964f065afb0c51d2716d472 9.1/SRPMS/screen-3.9.13-2.1.91mdk.src.rpm
Mandrake Linux 9.1/PPC:
b8570b8b63461c8f444dcdbe2c4f6e99 ppc/9.1/RPMS/screen-3.9.13-2.1.91mdk.ppc.rpm
025da8fcc964f065afb0c51d2716d472 ppc/9.1/SRPMS/screen-3.9.13-2.1.91mdk.src.rpm
Mandrake Linux 9.2:
656ca2f3bf4796052972997c214d7909 9.2/RPMS/screen-3.9.15-2.1.92mdk.i586.rpm
4d078d5d3b28c417a51e3a8bfe622f45 9.2/SRPMS/screen-3.9.15-2.1.92mdk.src.rpm
Multi Network Firewall 8.2:
c4b0b5a690692dac14eaeb8590fe2d8f mnf8.2/RPMS/screen-3.9.11-4.1.M82mdk.i586.rpm
9a363746316958e58a843f4d838b0cf0 mnf8.2/SRPMS/screen-3.9.11-4.1.M82mdk.src.rpm
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To upgrade automatically use MandrakeUpdate or urpmi. The verification
of md5 checksums and GPG signatures is performed automatically for you.
A list of FTP mirrors can be obtained from:
http://www.mandrakesecure.net/en/ftp.php
All packages are signed by MandrakeSoft for security. You can obtain
the GPG public key of the Mandrake Linux Security Team by executing:
gpg --recv-keys --keyserver http://www.mandrakesecure.net 0x22458A98
Please be aware that sometimes it takes the mirrors a few hours to
update.
You can view other update advisories for Mandrake Linux at:
http://www.mandrakesecure.net/en/advisories/
MandrakeSoft has several security-related mailing list services that
anyone can subscribe to. Information on these lists can be obtained by
visiting:
http://www.mandrakesecure.net/en/mlist.php
If you want to report vulnerabilities, please contact
security_linux-mandrake.com
Type Bits/KeyID Date User ID
pub 1024D/22458A98 2000-07-10 Linux Mandrake Security Team
<security linux-mandrake.com>
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