DSA 2063-1: New pmount packages fix denial of service

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Debian Security Advisory DSA-2063-1 security@debian.org
Debian -- Security Information Giuseppe Iuculano
June 17, 2010 Debian -- Debian security FAQ
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Package : pmount
Vulnerability : insecure temporary file
Problem type : local
Debian-specific: no
CVE Id : CVE-2010-2192


Dan Rosenberg discovered that pmount, a wrapper around the standard mount
program which permits normal users to mount removable devices without a
matching /etc/fstab entry, creates files in /var/lock insecurely.
A local attacker could overwrite arbitrary files utilising a symlink attack.


For the stable distribution (lenny), this problem has been fixed in
version 0.9.18-2+lenny1

For the unstable distribution (sid), this problem has been fixed in
version 0.9.23-1, and will migrate to the testing distribution (squeeze)
shortly.

We recommend that you upgrade your pmount package.

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
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Debian (stable)
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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/p/pmount/pmount_0.9.18.orig.tar.gz
Size/MD5 checksum: 436009 d04973bde34edac7dd2e50bfe8f10700
http://security.debian.org/pool/updates/main/p/pmount/pmount_0.9.18-2+lenny1.dsc
Size/MD5 checksum: 1202 d2a121965c3af232694c8df63821d713
http://security.debian.org/pool/updates/main/p/pmount/pmount_0.9.18-2+lenny1.diff.gz
Size/MD5 checksum: 8778 96ad2faddf78f80b104a4b9d883507d5

alpha architecture (DEC Alpha)

http://security.debian.org/pool/updates/main/p/pmount/pmount_0.9.18-2+lenny1_alpha.deb
Size/MD5 checksum: 119610 b8734d5a360b76e0c8dc7e7d97ee2f9d

amd64 architecture (AMD x86_64 (AMD64))

http://security.debian.org/pool/updates/main/p/pmount/pmount_0.9.18-2+lenny1_amd64.deb
Size/MD5 checksum: 117680 5ef3870410e876fbc7bdd0e092f08eef

arm architecture (ARM)

http://security.debian.org/pool/updates/main/p/pmount/pmount_0.9.18-2+lenny1_arm.deb
Size/MD5 checksum: 100718 b04cb703b30df4605d9d121ee2c89c16

armel architecture (ARM EABI)

http://security.debian.org/pool/updates/main/p/pmount/pmount_0.9.18-2+lenny1_armel.deb
Size/MD5 checksum: 101628 1ecb1c7cc49eda6d31de2165327dac99

hppa architecture (HP PA RISC)

http://security.debian.org/pool/updates/main/p/pmount/pmount_0.9.18-2+lenny1_hppa.deb
Size/MD5 checksum: 113350 189516bd992b63efaa489067cc9f6449

i386 architecture (Intel ia32)

http://security.debian.org/pool/updates/main/p/pmount/pmount_0.9.18-2+lenny1_i386.deb
Size/MD5 checksum: 102034 5070f1a0a8a9d617c710bc2820bf65e9

ia64 architecture (Intel ia64)

http://security.debian.org/pool/updates/main/p/pmount/pmount_0.9.18-2+lenny1_ia64.deb
Size/MD5 checksum: 133204 747d5be1ca278b8bac08522d72282923

mips architecture (MIPS (Big Endian))

http://security.debian.org/pool/updates/main/p/pmount/pmount_0.9.18-2+lenny1_mips.deb
Size/MD5 checksum: 114712 661bf288a4790a6c99f826a9d23ed584

mipsel architecture (MIPS (Little Endian))

http://security.debian.org/pool/updates/main/p/pmount/pmount_0.9.18-2+lenny1_mipsel.deb
Size/MD5 checksum: 115204 e5fc95107322fa23317ac413b9d0dac5

powerpc architecture (PowerPC)

http://security.debian.org/pool/updates/main/p/pmount/pmount_0.9.18-2+lenny1_powerpc.deb
Size/MD5 checksum: 124538 684de19e8f8df5ae941849b1b0298e33

s390 architecture (IBM S/390)

http://security.debian.org/pool/updates/main/p/pmount/pmount_0.9.18-2+lenny1_s390.deb
Size/MD5 checksum: 116318 a80c45d4dbd5a7fb666f4926e5deac59

sparc architecture (Sun SPARC/UltraSPARC)

http://security.debian.org/pool/updates/main/p/pmount/pmount_0.9.18-2+lenny1_sparc.deb
Size/MD5 checksum: 102488 96c8d0f14087b1036c70bd500da2b032


These files will probably be moved into the stable distribution on
its next update.