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- -------------------------------------------------------------------------- Debian Security Advisory DSA-1908-1 [email protected] http://www.debian.org/security/ Nico Golde October 14th, 2009 http://www.debian.org/security/faq
- --------------------------------------------------------------------------

Package : samba
Vulnerability : several
Problem type : local/remote
Debian-specific: no
Debian bug : none
CVE ID : CVE-2009-2948 CVE-2009-2906 CVE-2009-2813

Several vulnerabilities have been discovered in samba, an implementation of
the SMB/CIFS protocol for Unix systems, providing support for cross-platform file and printer sharing with other operating systems and more. The Common Vulnerabilities and Exposures project identifies the following problems:

The mount.cifs utility is missing proper checks for file permissions when
used in verbose mode. This allows local users to partly disclose the
content of arbitrary files by specifying the file as credentials file and attempting to mount a samba share (CVE-2009-2948).

A reply to an oplock break notification which samba doesn't expect could
lead to the service getting stuck in an infinite loop. An attacker
can use this to perform denial of service attacks via a specially crafted
SMB request (CVE-2009-2906).

A lack of error handling in case no home diretory was configured/specified
for the user could lead to file disclosure. In case the automated [homes] share is enabled or an explicit share is created with that username, samba fails to enforce sharing restrictions which results in an attacker being
able to access the file system from the root directory (CVE-2009-2813).


For the oldstable distribution (etch), this problem will be fixed soon.

For the stable distribution (lenny), this problem has been fixed in
version 2:3.2.5-4lenny7.

For the testing distribution (squeeze), this problem will be fixed soon.

For the unstable distribution (sid), this problem has been fixed in
version 2:3.4.2-1.


We recommend that you upgrade your samba packages.

Upgrade instructions
- --------------------

wget url
will fetch the file for you
dpkg -i file.deb
will install the referenced file.

If you are using the apt-get package manager, use the line for
sources.list as given below:

apt-get update
will update the internal database
apt-get upgrade
will install corrected packages

You may use an automated update by adding the resources from the
footer to the proper configuration.


Debian GNU/Linux 5.0 alias lenny
- --------------------------------

Debian (stable)
- ---------------

Stable updates are available for alpha, amd64, arm, armel, hppa, i386, ia64, mips, mipsel, powerpc, s390 and sparc.

Source archives:

http://security.debian.org/pool/updates/main/s/samba/samba_3.2.5-4lenny7.dsc
Size/MD5 checksum: 1830 7cc3718e19bbad5aa7099889c6c503a5
http://security.debian.org/pool/updates/main/s/samba/samba_3.2.5.orig.tar.gz
Size/MD5 checksum: 50276407 0f7539e09803ae60a2912e70adf1c747
http://security.debian.org/pool/updates/main/s/samba/samba_3.2.5-4lenny7.diff.gz
Size/MD5 checksum: 235342 836141a1924843383cc385e544c933e5

Architecture independent packages:

http://security.debian.org/pool/updates/main/s/samba/samba-doc_3.2.5-4lenny7_all.deb
Size/MD5 checksum: 7952438 630b57065388404b8a9fe3e9e111dc47
http://security.debian.org/pool/updates/main/s/samba/samba-doc-pdf_3.2.5-4lenny7_all.deb
Size/MD5 checksum: 6252326 cded2ecbaa3fd39bd215dbb4ec666d4c

alpha architecture (DEC Alpha)

http://security.debian.org/pool/updates/main/s/samba/samba-dbg_3.2.5-4lenny7_alpha.deb
Size/MD5 checksum: 1945142 a6804ba408657cc4c89c80b0d6e4b8a4
http://security.debian.org/pool/updates/main/s/samba/swat_3.2.5-4lenny7_alpha.deb
Size/MD5 checksum: 1078442 0bedbb5cdb5ca36f52d2e1d1a6015804
http://security.debian.org/pool/updates/main/s/samba/winbind_3.2.5-4lenny7_alpha.deb
Size/MD5 checksum: 3273896 082fdadedaf0234b97a8aefc1ef62d8a
http://security.debian.org/pool/updates/main/s/samba/libsmbclient-dev_3.2.5-4lenny7_alpha.deb
Size/MD5 checksum: 2572542 ed15d1a7aa9c065986a8e896d63479e2
http://security.debian.org/pool/updates/main/s/samba/samba_3.2.5-4lenny7_alpha.deb
Size/MD5 checksum: 4830106 58ed5cd28d4c43d07195d013cf25553f
http://security.debian.org/pool/updates/main/s/samba/smbfs_3.2.5-4lenny7_alpha.deb
Size/MD5 checksum: 1461944 71adea7a3b47b65f8df4f3dc5efc4422
http://security.debian.org/pool/updates/main/s/samba/libwbclient0_3.2.5-4lenny7_alpha.deb
Size/MD5 checksum: 81488 d521efbda414cf6d4a588873442eb987
http://security.debian.org/pool/updates/main/s/samba/samba-tools_3.2.5-4lenny7_alpha.deb
Size/MD5 checksum: 5730522 cca571adc80b833e7d9c45d5dd7fa103
http://security.debian.org/pool/updates/main/s/samba/libpam-smbpass_3.2.5-4lenny7_alpha.deb
Size/MD5 checksum: 637762 b526ea1ed9ca51d132a7685ec8320eea
http://security.debian.org/pool/updates/main/s/samba/libsmbclient_3.2.5-4lenny7_alpha.deb
Size/MD5 checksum: 1333234 36e35a3c252fabcfd2ec0ba8407323ca
http://security.debian.org/pool/updates/main/s/samba/samba-common_3.2.5-4lenny7_alpha.deb
Size/MD5 checksum: 3736262 9dc1a726efda21fa112ef2641c9b1f6a
http://security.debian.org/pool/updates/main/s/samba/smbclient_3.2.5-4lenny7_alpha.deb
Size/MD5 checksum: 6953202 b3e8de8b127bcd1f5dda4db61ed44b20

amd64 architecture (AMD x86_64 (AMD64))

http://security.debian.org/pool/updates/main/s/samba/winbind_3.2.5-4lenny7_amd64.deb
Size/MD5 checksum: 3274278 b732915df239ea1a9fff196250d6d383
http://security.debian.org/pool/updates/main/s/samba/smbfs_3.2.5-4lenny7_amd64.deb
Size/MD5 checksum: 1493684 460ed93756df58adfa57870d06c9aaff
http://security.debian.org/pool/updates/main/s/samba/libpam-smbpass_3.2.5-4lenny7_amd64.deb
Size/MD5 checksum: 627686 70379a8e6ce3b5d6de6af6b895d30619
http://security.debian.org/pool/updates/main/s/samba/samba-common_3.2.5-4lenny7_amd64.deb
Size/MD5 checksum: 3728204 ac7fb1f7d07628d0452d10e62b2d661d

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