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Secunia Security Advisory 32080

Secunia Security Advisory 32080
Posted Oct 2, 2008
Authored by Secunia | Site secunia.com

Secunia Security Advisory - Ubuntu has issued an update for openssh-server. This fixes a weakness and a vulnerability, which can be exploited by malicious local users to bypass certain security restrictions and by malicious people to cause a DoS (Denial of Service).

tags | advisory, denial of service, local
systems | linux, ubuntu
SHA-256 | 9120a4006cbd02adc405c1075fedfa8382a37093f51209f4c6616d4873223bd6

Secunia Security Advisory 32080

Change Mirror Download
----------------------------------------------------------------------

Do you need accurate and reliable IDS / IPS / AV detection rules?

Get in-depth vulnerability details:
http://secunia.com/binary_analysis/sample_analysis/

----------------------------------------------------------------------

TITLE:
Ubuntu update for openssh-server

SECUNIA ADVISORY ID:
SA32080

VERIFY ADVISORY:
http://secunia.com/advisories/32080/

CRITICAL:
Moderately critical

IMPACT:
Security Bypass, DoS

WHERE:
>From remote

OPERATING SYSTEM:
Ubuntu Linux 6.06
http://secunia.com/advisories/product/10611/
Ubuntu Linux 7.04
http://secunia.com/advisories/product/14068/

DESCRIPTION:
Ubuntu has issued an update for openssh-server. This fixes a weakness
and a vulnerability, which can be exploited by malicious local users
to bypass certain security restrictions and by malicious people to
cause a DoS (Denial of Service).

For more information:
SA29602

A vulnerability is caused due to an incorrect patch for
CVE-2006-5051.

For more information:
SA22208

SOLUTION:
Apply updated packages.

Ubuntu 6.06 LTS:

Source archives:

http://security.ubuntu.com/ubuntu/pool/main/o/openssh/openssh_4.2p1-7ubuntu3.5.diff.gz
Size/MD5: 182759 84d6f01556b7f178854b1d89290f75a0
http://security.ubuntu.com/ubuntu/pool/main/o/openssh/openssh_4.2p1-7ubuntu3.5.dsc
Size/MD5: 1049 4493dda5817b846d33120f85c6d3f77b
http://security.ubuntu.com/ubuntu/pool/main/o/openssh/openssh_4.2p1.orig.tar.gz
Size/MD5: 928420 93295701e6bcd76fabd6a271654ed15c

Architecture independent packages:

http://security.ubuntu.com/ubuntu/pool/main/o/openssh/ssh_4.2p1-7ubuntu3.5_all.deb
Size/MD5: 1058 1c1b30301624bd73f969ff494e1836a0

amd64 architecture (Athlon64, Opteron, EM64T Xeon):

http://security.ubuntu.com/ubuntu/pool/main/o/openssh/openssh-client-udeb_4.2p1-7ubuntu3.5_amd64.udeb
Size/MD5: 166424 3916923233fa947bdf27caa2b0ad865f
http://security.ubuntu.com/ubuntu/pool/main/o/openssh/openssh-client_4.2p1-7ubuntu3.5_amd64.deb
Size/MD5: 655784 64c58ef16131c62ee1e2b0ebb6132baf
http://security.ubuntu.com/ubuntu/pool/main/o/openssh/openssh-server_4.2p1-7ubuntu3.5_amd64.deb
Size/MD5: 237226 30efa65f590c97098227165f8ce0d918
http://security.ubuntu.com/ubuntu/pool/main/o/openssh/ssh-askpass-gnome_4.2p1-7ubuntu3.5_amd64.deb
Size/MD5: 87378 20d6b56fe548f0a9104b092df38570f6
http://security.ubuntu.com/ubuntu/pool/universe/o/openssh/openssh-server-udeb_4.2p1-7ubuntu3.5_amd64.udeb
Size/MD5: 183792 04ddb7fb9361354ba35b0a7a4989ba9b

i386 architecture (x86 compatible Intel/AMD):

http://security.ubuntu.com/ubuntu/pool/main/o/openssh/openssh-client-udeb_4.2p1-7ubuntu3.5_i386.udeb
Size/MD5: 141086 9411d7c548f6b5d7c8b42229135905c7
http://security.ubuntu.com/ubuntu/pool/main/o/openssh/openssh-client_4.2p1-7ubuntu3.5_i386.deb
Size/MD5: 576638 ab0c266e0ced4ae835960da96ad1827e
http://security.ubuntu.com/ubuntu/pool/main/o/openssh/openssh-server_4.2p1-7ubuntu3.5_i386.deb
Size/MD5: 207402 8ba8438b3ac1a8b8a59fb1ea45ff43db
http://security.ubuntu.com/ubuntu/pool/main/o/openssh/ssh-askpass-gnome_4.2p1-7ubuntu3.5_i386.deb
Size/MD5: 87034 eacfbe472a92433cc8797d5859d1593d
http://security.ubuntu.com/ubuntu/pool/universe/o/openssh/openssh-server-udeb_4.2p1-7ubuntu3.5_i386.udeb
Size/MD5: 153712 3f140bf92b5403618c06ee590a4a0873

powerpc architecture (Apple Macintosh G3/G4/G5):

http://security.ubuntu.com/ubuntu/pool/main/o/openssh/openssh-client-udeb_4.2p1-7ubuntu3.5_powerpc.udeb
Size/MD5: 160032 47466e95a8099a8a569ef6d546144ba1
http://security.ubuntu.com/ubuntu/pool/main/o/openssh/openssh-client_4.2p1-7ubuntu3.5_powerpc.deb
Size/MD5: 641064 a7a51b8deb7b031b3fd87d059d9b5482
http://security.ubuntu.com/ubuntu/pool/main/o/openssh/openssh-server_4.2p1-7ubuntu3.5_powerpc.deb
Size/MD5: 228208 fd847956aa785ff2b962dedd22374022
http://security.ubuntu.com/ubuntu/pool/main/o/openssh/ssh-askpass-gnome_4.2p1-7ubuntu3.5_powerpc.deb
Size/MD5: 88664 1e45f98265cc3637b1046313065728ca
http://security.ubuntu.com/ubuntu/pool/universe/o/openssh/openssh-server-udeb_4.2p1-7ubuntu3.5_powerpc.udeb
Size/MD5: 168970 24ccb68ea276db25f2b32426dd5c6254

sparc architecture (Sun SPARC/UltraSPARC):

http://security.ubuntu.com/ubuntu/pool/main/o/openssh/openssh-client-udeb_4.2p1-7ubuntu3.5_sparc.udeb
Size/MD5: 150252 6545ef0a6d40c8d249ffd41c6b5bc4f3
http://security.ubuntu.com/ubuntu/pool/main/o/openssh/openssh-client_4.2p1-7ubuntu3.5_sparc.deb
Size/MD5: 584012 fde05cab33342416c9022540422da448
http://security.ubuntu.com/ubuntu/pool/main/o/openssh/openssh-server_4.2p1-7ubuntu3.5_sparc.deb
Size/MD5: 210432 e853f6e07fe6164b30f86d88600d74ca
http://security.ubuntu.com/ubuntu/pool/main/o/openssh/ssh-askpass-gnome_4.2p1-7ubuntu3.5_sparc.deb
Size/MD5: 87058 6bc705d12536e6e05fce90f8b915eb29
http://security.ubuntu.com/ubuntu/pool/universe/o/openssh/openssh-server-udeb_4.2p1-7ubuntu3.5_sparc.udeb
Size/MD5: 163174 f4d91d5df6312dc145802bc569515b08

Updated packages for Ubuntu 7.04:

Source archives:

http://security.ubuntu.com/ubuntu/pool/main/o/openssh/openssh_4.3p2-8ubuntu1.5.diff.gz
Size/MD5: 277584 b9cdd02d7d880ac3e95342e933fb9734
http://security.ubuntu.com/ubuntu/pool/main/o/openssh/openssh_4.3p2-8ubuntu1.5.dsc

Size/MD5: 1120 22c0d5f9c2c5e80d0faff7e5060b93e2
http://security.ubuntu.com/ubuntu/pool/main/o/openssh/openssh_4.3p2.orig.tar.gz
Size/MD5: 920186 239fc801443acaffd4c1f111948ee69c

Architecture independent packages:

http://security.ubuntu.com/ubuntu/pool/main/o/openssh/ssh_4.3p2-8ubuntu1.5_all.deb
Size/MD5: 1086 35b8dc75cb62b2ab9a01efcf9b5364d3
http://security.ubuntu.com/ubuntu/pool/universe/o/openssh/ssh-krb5_4.3p2-8ubuntu1.5_all.deb
Size/MD5: 93576 0e9d1015896f3c3c827fb8cc33e2968f

amd64 architecture (Athlon64, Opteron, EM64T Xeon):

http://security.ubuntu.com/ubuntu/pool/main/o/openssh/openssh-client-udeb_4.3p2-8ubuntu1.5_amd64.udeb
Size/MD5: 173014 04f0dd2312772fcf12de99fec6597bda
http://security.ubuntu.com/ubuntu/pool/main/o/openssh/openssh-client_4.3p2-8ubuntu1.5_amd64.deb
Size/MD5: 739970 2128e70e5ec789ae362d713835dceb78
http://security.ubuntu.com/ubuntu/pool/main/o/openssh/openssh-server-udeb_4.3p2-8ubuntu1.5_amd64.udeb
Size/MD5: 185880 be6c4e13e999263b7ad2612a290f424a
http://security.ubuntu.com/ubuntu/pool/main/o/openssh/openssh-server_4.3p2-8ubuntu1.5_amd64.deb
Size/MD5: 255666 e4a9dad306c9f93a5df4b95659813531
http://security.ubuntu.com/ubuntu/pool/main/o/openssh/ssh-askpass-gnome_4.3p2-8ubuntu1.5_amd64.deb
Size/MD5: 101964 1a3d54cb2a88366ffdc8f92355684c0c

i386 architecture (x86 compatible Intel/AMD):

http://security.ubuntu.com/ubuntu/pool/main/o/openssh/openssh-client-udeb_4.3p2-8ubuntu1.5_i386.udeb
Size/MD5: 156802 dd5314071ffb46c1f94b13c6d774d7bc
http://security.ubuntu.com/ubuntu/pool/main/o/openssh/openssh-client_4.3p2-8ubuntu1.5_i386.deb
Size/MD5: 702048 322c7cb00e1b85d57a83e952068176ca
http://security.ubuntu.com/ubuntu/pool/main/o/openssh/openssh-server-udeb_4.3p2-8ubuntu1.5_i386.udeb
Size/MD5: 165482 661e2a9f1029a914f61d05b2d4b2d472
http://security.ubuntu.com/ubuntu/pool/main/o/openssh/openssh-server_4.3p2-8ubuntu1.5_i386.deb
Size/MD5: 238106 061297057a0d7676244b7f95c65b8c83
http://security.ubuntu.com/ubuntu/pool/main/o/openssh/ssh-askpass-gnome_4.3p2-8ubuntu1.5_i386.deb
Size/MD5: 101672 40fd4b7a5bc494e78cb2905d6dcbbe07

powerpc architecture (Apple Macintosh G3/G4/G5):

http://security.ubuntu.com/ubuntu/pool/main/o/openssh/openssh-client-udeb_4.3p2-8ubuntu1.5_powerpc.udeb
Size/MD5: 178906 9424fda98723e8998dbec4711628064a
http://security.ubuntu.com/ubuntu/pool/main/o/openssh/openssh-client_4.3p2-8ubuntu1.5_powerpc.deb
Size/MD5: 767896 b8f33e286a682417653382421bd1ecaf
http://security.ubuntu.com/ubuntu/pool/main/o/openssh/openssh-server-udeb_4.3p2-8ubuntu1.5_powerpc.udeb
Size/MD5: 184086 f68b5556e452d11113d750080625252c
http://security.ubuntu.com/ubuntu/pool/main/o/openssh/openssh-server_4.3p2-8ubuntu1.5_powerpc.deb
Size/MD5: 259758 60a337703875ab4aa889de98e32ce10e
http://security.ubuntu.com/ubuntu/pool/main/o/openssh/ssh-askpass-gnome_4.3p2-8ubuntu1.5_powerpc.deb
Size/MD5: 104420 9a7d82f1f4b99ad3612300684f9f5f29

sparc architecture (Sun SPARC/UltraSPARC):

http://security.ubuntu.com/ubuntu/pool/main/o/openssh/openssh-client-udeb_4.3p2-8ubuntu1.5_sparc.udeb
Size/MD5: 164290 f270344795f84733794562d0dedd93e4
http://security.ubuntu.com/ubuntu/pool/main/o/openssh/openssh-client_4.3p2-8ubuntu1.5_sparc.deb
Size/MD5: 751908 2dc3dddc0015ad14b0a52f56c6acb6cd
http://security.ubuntu.com/ubuntu/pool/main/o/openssh/openssh-server-udeb_4.3p2-8ubuntu1.5_sparc.udeb
Size/MD5: 172644 b50ae3ba357245b5f5ebd0b3baa73982
http://security.ubuntu.com/ubuntu/pool/main/o/openssh/openssh-server_4.3p2-8ubuntu1.5_sparc.deb
Size/MD5: 263454 fd4a6846b03b1bc9b04a25f6f49e982e
http://security.ubuntu.com/ubuntu/pool/main/o/openssh/ssh-askpass-gnome_4.3p2-8ubuntu1.5_sparc.deb
Size/MD5: 101908 7d6a07fc7f38be3ee4938e351fa14c02

ORIGINAL ADVISORY:
USN-649-1:
http://www.ubuntu.com/usn/usn-649-1

OTHER REFERENCES:
SA22208:
http://secunia.com/advisories/22208/

SA29602:
http://secunia.com/advisories/29602/

----------------------------------------------------------------------

About:
This Advisory was delivered by Secunia as a free service to help
everybody keeping their systems up to date against the latest
vulnerabilities.

Subscribe:
http://secunia.com/advisories/secunia_security_advisories/

Definitions: (Criticality, Where etc.)
http://secunia.com/advisories/about_secunia_advisories/


Please Note:
Secunia recommends that you verify all advisories you receive by
clicking the link.
Secunia NEVER sends attached files with advisories.
Secunia does not advise people to install third party patches, only
use those supplied by the vendor.

----------------------------------------------------------------------

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