[Security Announce] [ MDKSA-2006:179 ] - Updated openssh packages fix DoS vulnerabilities
Posted on: 10/03/2006 11:25 PM

The Mandriva Security Team published a new security update for Mandriva Linux. Here the announcement:

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Mandriva Linux Security Advisory MDKSA-2006:179
http://www.mandriva.com/security/
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Package : openssh
Date : October 3, 2006
Affected: 2006.0, 2007.0, Corporate 3.0, Corporate 4.0,
Multi Network Firewall 2.0
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Problem Description:

Tavis Ormandy of the Google Security Team discovered a Denial of
Service vulnerability in the SSH protocol version 1 CRC compensation
attack detector. This could allow a remote unauthenticated attacker to
trigger excessive CPU utilization by sending a specially crafted SSH
message, which would then deny ssh services to other users or processes
(CVE-2006-4924, CVE-2006-4925). Please note that Mandriva ships with
only SSH protocol version 2 enabled by default.

Next, an unsafe signal handler was found by Mark Dowd. This signal
handler was vulnerable to a race condition that could be exploited to
perform a pre-authentication DoS, and theoretically a
pre-authentication remote code execution in the case where some
authentication methods like GSSAPI are enabled (CVE-2006-5051).

Updated packages have been patched to correct this issue.
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References:

http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-4924
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-4925
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-5051
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Updated Packages:

Mandriva Linux 2006.0:
1280b30b3520a9ca5c2e6a716a770a0c 2006.0/i586/openssh-4.3p1-0.3.20060mdk.i586.rpm
007b28a957c4537d6ed196d2b2367c1e 2006.0/i586/openssh-askpass-4.3p1-0.3.20060mdk.i586.rpm
280b2c0b27ef2387110d363493be892f 2006.0/i586/openssh-askpass-gnome-4.3p1-0.3.20060mdk.i586.rpm
3a41abc407c20928f672223c67d06c36 2006.0/i586/openssh-clients-4.3p1-0.3.20060mdk.i586.rpm
063589a511985d4127e03c349fa23330 2006.0/i586/openssh-server-4.3p1-0.3.20060mdk.i586.rpm
6f11187f048ef296607c54c1c92e7c24 2006.0/SRPMS/openssh-4.3p1-0.3.20060mdk.src.rpm

Mandriva Linux 2006.0/X86_64:
68bc6ad235e0534bc57e180b90c33bdb 2006.0/x86_64/openssh-4.3p1-0.3.20060mdk.x86_64.rpm
d0668a2d76eb927afcaa4897fc509f91 2006.0/x86_64/openssh-askpass-4.3p1-0.3.20060mdk.x86_64.rpm
502b3088f7f55d3de57b2278b5452a5a 2006.0/x86_64/openssh-askpass-gnome-4.3p1-0.3.20060mdk.x86_64.rpm
2551d84521716a9b6702a98b9d121b9d 2006.0/x86_64/openssh-clients-4.3p1-0.3.20060mdk.x86_64.rpm
c8627d7e04e87c1e5bed7d0b744b2ad2 2006.0/x86_64/openssh-server-4.3p1-0.3.20060mdk.x86_64.rpm
6f11187f048ef296607c54c1c92e7c24 2006.0/SRPMS/openssh-4.3p1-0.3.20060mdk.src.rpm

Mandriva Linux 2007.0:
9687bdb4f2865c2765da0f01efda87ef 2007.0/i586/openssh-4.3p2-12.1mdv2007.0.i586.rpm
40f80b906c0e9ec5d2d6622ce7efc3fd 2007.0/i586/openssh-askpass-4.3p2-12.1mdv2007.0.i586.rpm
b50bae14a353fdd3ca632096467a51cd 2007.0/i586/openssh-askpass-common-4.3p2-12.1mdv2007.0.i586.rpm
0d393f5af4f97c0ca2073c3f11628a40 2007.0/i586/openssh-askpass-gnome-4.3p2-12.1mdv2007.0.i586.rpm
084d0fa10aa7daa1aaea59cb2efc9494 2007.0/i586/openssh-clients-4.3p2-12.1mdv2007.0.i586.rpm
07f0a46845c178b78549c0734074407f 2007.0/i586/openssh-server-4.3p2-12.1mdv2007.0.i586.rpm
c9ccf40372c7c2b0eca968aec9f9385d 2007.0/SRPMS/openssh-4.3p2-12.1mdv2007.0.src.rpm

Mandriva Linux 2007.0/X86_64:
a1ed25a9f53038434574b3ce921eac1a 2007.0/x86_64/openssh-4.3p2-12.1mdv2007.0.x86_64.rpm
d9acf43a28f105d80fcd7a12535efdda 2007.0/x86_64/openssh-askpass-4.3p2-12.1mdv2007.0.x86_64.rpm
ed6488abb9c621dab762307136493969 2007.0/x86_64/openssh-askpass-common-4.3p2-12.1mdv2007.0.x86_64.rpm
ef48a28c45ec44dc1f20eb0ee26f4877 2007.0/x86_64/openssh-askpass-gnome-4.3p2-12.1mdv2007.0.x86_64.rpm
80c7ee2ccb6ac35fe1b893cb58b092cd 2007.0/x86_64/openssh-clients-4.3p2-12.1mdv2007.0.x86_64.rpm
217eb2fbf7574aa34a592e54d527f8dd 2007.0/x86_64/openssh-server-4.3p2-12.1mdv2007.0.x86_64.rpm
c9ccf40372c7c2b0eca968aec9f9385d 2007.0/SRPMS/openssh-4.3p2-12.1mdv2007.0.src.rpm

Corporate 3.0:
08ee3d3de53563481a748d8b4d9f5e5b corporate/3.0/i586/openssh-4.3p1-0.2.C30mdk.i586.rpm
bb472724a2e1afce4b2d526f75d65d3e corporate/3.0/i586/openssh-askpass-4.3p1-0.2.C30mdk.i586.rpm
cdcf5e37768032e2c6599d219493db0c corporate/3.0/i586/openssh-askpass-gnome-4.3p1-0.2.C30mdk.i586.rpm
1909a018d6883df234a2bb41072a839b corporate/3.0/i586/openssh-clients-4.3p1-0.2.C30mdk.i586.rpm
fc516bf57f9faf0168fef9638f1f7546 corporate/3.0/i586/openssh-server-4.3p1-0.2.C30mdk.i586.rpm
b6c94995c4c1408a1d72b6fb1956e7c1 corporate/3.0/SRPMS/openssh-4.3p1-0.2.C30mdk.src.rpm

Corporate 3.0/X86_64:
dab1069ffd0d206b230872ce11d6ef32 corporate/3.0/x86_64/openssh-4.3p1-0.2.C30mdk.x86_64.rpm
940a582fce6836589755ceea2d494421 corporate/3.0/x86_64/openssh-askpass-4.3p1-0.2.C30mdk.x86_64.rpm
ee2543c6210ce8294e586305aa950c0e corporate/3.0/x86_64/openssh-askpass-gnome-4.3p1-0.2.C30mdk.x86_64.rpm
236f5b3229aebf958a7726f861f5c279 corporate/3.0/x86_64/openssh-clients-4.3p1-0.2.C30mdk.x86_64.rpm
245fa68997db318e68b27c1d47a19219 corporate/3.0/x86_64/openssh-server-4.3p1-0.2.C30mdk.x86_64.rpm
b6c94995c4c1408a1d72b6fb1956e7c1 corporate/3.0/SRPMS/openssh-4.3p1-0.2.C30mdk.src.rpm

Corporate 4.0:
cd934818457b0e688c5e49e16e022e03 corporate/4.0/i586/openssh-4.3p1-0.3.20060mlcs4.i586.rpm
3d14fc47de98f81e803755f80df948c1 corporate/4.0/i586/openssh-askpass-4.3p1-0.3.20060mlcs4.i586.rpm
03f2d3a6089b5a2d5abcf3ceffeecdc1 corporate/4.0/i586/openssh-askpass-gnome-4.3p1-0.3.20060mlcs4.i586.rpm
37a2a56723f5dc119acce62df2759749 corporate/4.0/i586/openssh-clients-4.3p1-0.3.20060mlcs4.i586.rpm
331331d9843f490c6e98c28d54b42ca9 corporate/4.0/i586/openssh-server-4.3p1-0.3.20060mlcs4.i586.rpm
988d0f895a34d6a71e69f7ec12bd45f0 corporate/4.0/SRPMS/openssh-4.3p1-0.3.20060mlcs4.src.rpm

Corporate 4.0/X86_64:
5bdd94f5242c68fe0b490c13cbd08ea0 corporate/4.0/x86_64/openssh-4.3p1-0.3.20060mlcs4.x86_64.rpm
48874aea14500ca90da22dcdfab029f8 corporate/4.0/x86_64/openssh-askpass-4.3p1-0.3.20060mlcs4.x86_64.rpm
4f7a3fc780511ead79932bbdf5e64b61 corporate/4.0/x86_64/openssh-askpass-gnome-4.3p1-0.3.20060mlcs4.x86_64.rpm
d99aa2e584d3e58cf40e49c99d9ce3a6 corporate/4.0/x86_64/openssh-clients-4.3p1-0.3.20060mlcs4.x86_64.rpm
6a622455fc895b7b30d049d799207f19 corporate/4.0/x86_64/openssh-server-4.3p1-0.3.20060mlcs4.x86_64.rpm
988d0f895a34d6a71e69f7ec12bd45f0 corporate/4.0/SRPMS/openssh-4.3p1-0.3.20060mlcs4.src.rpm

Multi Network Firewall 2.0:
6da5f9bf7f28e8017133a4f5fa72651f mnf/2.0/i586/openssh-4.3p1-0.2.M20mdk.i586.rpm
3b5fce9c7d8a67a179bb40c3c537f160 mnf/2.0/i586/openssh-askpass-4.3p1-0.2.M20mdk.i586.rpm
7ff70b823d0fa18677447a90bb3ea503 mnf/2.0/i586/openssh-askpass-gnome-4.3p1-0.2.M20mdk.i586.rpm
434e7b3885a37ce4d72ed7f2fd3d9342 mnf/2.0/i586/openssh-clients-4.3p1-0.2.M20mdk.i586.rpm
1772c26f342a5d8b00c3894cdf6ad514 mnf/2.0/i586/openssh-server-4.3p1-0.2.M20mdk.i586.rpm
2d96693d80c25155b97272596da9aabe mnf/2.0/SRPMS/openssh-4.3p1-0.2.M20mdk.src.rpm
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To upgrade automatically use MandrivaUpdate or urpmi. The verification
of md5 checksums and GPG signatures is performed automatically for you.

All packages are signed by Mandriva for security. You can obtain the
GPG public key of the Mandriva Security Team by executing:

gpg --recv-keys --keyserver pgp.mit.edu 0x22458A98

You can view other update advisories for Mandriva Linux at:

http://www.mandriva.com/security/advisories

If you want to report vulnerabilities, please contact

security_(at)_mandriva.com
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Type Bits/KeyID Date User ID
pub 1024D/22458A98 2000-07-10 Mandriva Security Team
lt;security*mandriva.comgt;
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