Updated util-linux and mount packages that fix two security issues are now available. This update has been rated as having moderate security impact by the Red Hat Security Response Team.

- ---------------------------------------------------------------------                   Red Hat Security Advisory

Synopsis:          Moderate: util-linux and mount security update
Advisory ID:       RHSA-2005:782-01
Advisory URL:      https://access.redhat.com/errata/RHSA-2005:782.html
Issue date:        2005-10-11
Updated on:        2005-10-11
Product:           Red Hat Enterprise Linux
CVE Names:         CAN-2005-2876 CAN-2001-1494
- ---------------------------------------------------------------------1. Summary:

Updated util-linux and mount packages that fix two security issues are now
available.

This update has been rated as having moderate security impact by the Red
Hat Security Response Team.

2. Relevant releases/architectures:

Red Hat Enterprise Linux AS (Advanced Server) version 2.1 - i386, ia64
Red Hat Linux Advanced Workstation 2.1 - ia64
Red Hat Enterprise Linux ES version 2.1 - i386
Red Hat Enterprise Linux WS version 2.1 - i386
Red Hat Enterprise Linux AS version 3 - i386, ia64, ppc, s390, s390x, x86_64
Red Hat Desktop version 3 - i386, x86_64
Red Hat Enterprise Linux ES version 3 - i386, ia64, x86_64
Red Hat Enterprise Linux WS version 3 - i386, ia64, x86_64
Red Hat Enterprise Linux AS version 4 - i386, ia64, ppc, s390, s390x, x86_64
Red Hat Enterprise Linux Desktop version 4 - i386, x86_64
Red Hat Enterprise Linux ES version 4 - i386, ia64, x86_64
Red Hat Enterprise Linux WS version 4 - i386, ia64, x86_64

3. Problem description:

The util-linux package contains a large variety of low-level system
utilities that are necessary for a Linux system to function.

The mount package contains the mount, umount, swapon and swapoff programs.

A bug was found in the way the umount command is executed by normal users.
It may be possible for a user to gain elevated privileges if the user is
able to execute the "umount -r" command on a mounted file system. The
file system will be re-mounted only with the "readonly" flag set, clearing
flags such as "nosuid" and "noexec". The Common Vulnerabilities and
Exposures project (cve.mitre.org) has assigned the name CAN-2005-2876 to
this issue.

This update also fixes a hardlink bug in the script command for Red Hat
Enterprise Linux 2.1. If a local user places a hardlinked file named
"typescript" in a directory they have write access to, the file will be
overwritten if the user running script has write permissions to the
destination file. The Common Vulnerabilities and Exposures project
(cve.mitre.org) has assigned the name CAN-2001-1494 to this issue.

All users of util-linux and mount should upgrade to these updated packages,
which contain backported patches to correct these issues.

4. Solution:

Before applying this update, make sure all previously released errata
relevant to your system have been applied.

This update is available via Red Hat Network.  To use Red Hat Network,
launch the Red Hat Update Agent with the following command:

up2date

This will start an interactive process that will result in the appropriate
RPMs being upgraded on your system.

5. Bug IDs fixed (http://bugzilla.redhat.com/):

161337 - CAN-2001-1494 hardlink vulnerability in 'script' command
168206 - CAN-2005-2876 umount unsafe -r usage
168209 - CAN-2005-2876 umount unsafe -r usage


6. RPMs required:

Red Hat Enterprise Linux AS (Advanced Server) version 2.1:

SRPMS:
d3282353910c50c68ebfb44cacb6c30f  mount-2.11g-9.src.rpm
8a7547d3dd15711353a976fd47e04176  util-linux-2.11f-20.8.src.rpm

i386:
7e1c7b7c2c2fa29085e7e6897e88078d  losetup-2.11g-9.i386.rpm
ffaa56d9acad22b210f2f4ea509b5ec1  mount-2.11g-9.i386.rpm
3e64e8635bd18d364511ad564dab373f  util-linux-2.11f-20.8.i386.rpm

ia64:
6f83321e29bfe52139ae9255dead0f9c  losetup-2.11g-9.ia64.rpm
8ce58c073113458c7a35df7912ea3746  mount-2.11g-9.ia64.rpm
ea0ede106e89ece2883f5dfa545c1429  util-linux-2.11f-20.8.ia64.rpm

Red Hat Linux Advanced Workstation 2.1:

SRPMS:
d3282353910c50c68ebfb44cacb6c30f  mount-2.11g-9.src.rpm
8a7547d3dd15711353a976fd47e04176  util-linux-2.11f-20.8.src.rpm

ia64:
6f83321e29bfe52139ae9255dead0f9c  losetup-2.11g-9.ia64.rpm
8ce58c073113458c7a35df7912ea3746  mount-2.11g-9.ia64.rpm
ea0ede106e89ece2883f5dfa545c1429  util-linux-2.11f-20.8.ia64.rpm

Red Hat Enterprise Linux ES version 2.1:

SRPMS:
d3282353910c50c68ebfb44cacb6c30f  mount-2.11g-9.src.rpm
8a7547d3dd15711353a976fd47e04176  util-linux-2.11f-20.8.src.rpm

i386:
7e1c7b7c2c2fa29085e7e6897e88078d  losetup-2.11g-9.i386.rpm
ffaa56d9acad22b210f2f4ea509b5ec1  mount-2.11g-9.i386.rpm
3e64e8635bd18d364511ad564dab373f  util-linux-2.11f-20.8.i386.rpm

Red Hat Enterprise Linux WS version 2.1:

SRPMS:
d3282353910c50c68ebfb44cacb6c30f  mount-2.11g-9.src.rpm
8a7547d3dd15711353a976fd47e04176  util-linux-2.11f-20.8.src.rpm

i386:
7e1c7b7c2c2fa29085e7e6897e88078d  losetup-2.11g-9.i386.rpm
ffaa56d9acad22b210f2f4ea509b5ec1  mount-2.11g-9.i386.rpm
3e64e8635bd18d364511ad564dab373f  util-linux-2.11f-20.8.i386.rpm

Red Hat Enterprise Linux AS version 3:

SRPMS:
7a562d571237203634c8009d2c506921  util-linux-2.11y-31.11.src.rpm

i386:
b89a7d466e3cead507c00776aae3b437  losetup-2.11y-31.11.i386.rpm
df678149ef9fe3c088f7ca6af1697337  mount-2.11y-31.11.i386.rpm
e5fa25f4caa04749eb39430e45ab7bd3  util-linux-2.11y-31.11.i386.rpm

ia64:
ebbb6f700b72357c03220f32a1e8a164  losetup-2.11y-31.11.ia64.rpm
67526f76a9e66c74faad8ce7ce290a9d  mount-2.11y-31.11.ia64.rpm
00657fbd14ab30ddec29724783288fb1  util-linux-2.11y-31.11.ia64.rpm

ppc:
b4fb144ebf8ba11e59fbac9de6bd2b95  losetup-2.11y-31.11.ppc.rpm
2638872b02dd777c17bc30e2f6489f04  mount-2.11y-31.11.ppc.rpm
70a8b932588c3c36232b9e447c4bb9c3  util-linux-2.11y-31.11.ppc.rpm

s390:
e4f001ff1d9fd90e0c582031fa3b0216  losetup-2.11y-31.11.s390.rpm
a6a1ca2a10b378fb25d4a862ef3cb645  mount-2.11y-31.11.s390.rpm
068f5f2c4f13dd5b45af98a9ea3c9da5  util-linux-2.11y-31.11.s390.rpm

s390x:
303c1e4eb9a401bb562e95f112cb86ad  losetup-2.11y-31.11.s390x.rpm
5ad992ec8f902bced723a7b06c5febb2  mount-2.11y-31.11.s390x.rpm
b0d09f13c674c79fb04a389765517473  util-linux-2.11y-31.11.s390x.rpm

x86_64:
d7a946efdfbf418dad33828622c9f550  losetup-2.11y-31.11.x86_64.rpm
b90e15d4e39913757550b9362a98bfb2  mount-2.11y-31.11.x86_64.rpm
6f2df633740943a84fa5f06d3ff41f54  util-linux-2.11y-31.11.x86_64.rpm

Red Hat Desktop version 3:

SRPMS:
7a562d571237203634c8009d2c506921  util-linux-2.11y-31.11.src.rpm

i386:
b89a7d466e3cead507c00776aae3b437  losetup-2.11y-31.11.i386.rpm
df678149ef9fe3c088f7ca6af1697337  mount-2.11y-31.11.i386.rpm
e5fa25f4caa04749eb39430e45ab7bd3  util-linux-2.11y-31.11.i386.rpm

x86_64:
d7a946efdfbf418dad33828622c9f550  losetup-2.11y-31.11.x86_64.rpm
b90e15d4e39913757550b9362a98bfb2  mount-2.11y-31.11.x86_64.rpm
6f2df633740943a84fa5f06d3ff41f54  util-linux-2.11y-31.11.x86_64.rpm

Red Hat Enterprise Linux ES version 3:

SRPMS:
7a562d571237203634c8009d2c506921  util-linux-2.11y-31.11.src.rpm

i386:
b89a7d466e3cead507c00776aae3b437  losetup-2.11y-31.11.i386.rpm
df678149ef9fe3c088f7ca6af1697337  mount-2.11y-31.11.i386.rpm
e5fa25f4caa04749eb39430e45ab7bd3  util-linux-2.11y-31.11.i386.rpm

ia64:
ebbb6f700b72357c03220f32a1e8a164  losetup-2.11y-31.11.ia64.rpm
67526f76a9e66c74faad8ce7ce290a9d  mount-2.11y-31.11.ia64.rpm
00657fbd14ab30ddec29724783288fb1  util-linux-2.11y-31.11.ia64.rpm

x86_64:
d7a946efdfbf418dad33828622c9f550  losetup-2.11y-31.11.x86_64.rpm
b90e15d4e39913757550b9362a98bfb2  mount-2.11y-31.11.x86_64.rpm
6f2df633740943a84fa5f06d3ff41f54  util-linux-2.11y-31.11.x86_64.rpm

Red Hat Enterprise Linux WS version 3:

SRPMS:
7a562d571237203634c8009d2c506921  util-linux-2.11y-31.11.src.rpm

i386:
b89a7d466e3cead507c00776aae3b437  losetup-2.11y-31.11.i386.rpm
df678149ef9fe3c088f7ca6af1697337  mount-2.11y-31.11.i386.rpm
e5fa25f4caa04749eb39430e45ab7bd3  util-linux-2.11y-31.11.i386.rpm

ia64:
ebbb6f700b72357c03220f32a1e8a164  losetup-2.11y-31.11.ia64.rpm
67526f76a9e66c74faad8ce7ce290a9d  mount-2.11y-31.11.ia64.rpm
00657fbd14ab30ddec29724783288fb1  util-linux-2.11y-31.11.ia64.rpm

x86_64:
d7a946efdfbf418dad33828622c9f550  losetup-2.11y-31.11.x86_64.rpm
b90e15d4e39913757550b9362a98bfb2  mount-2.11y-31.11.x86_64.rpm
6f2df633740943a84fa5f06d3ff41f54  util-linux-2.11y-31.11.x86_64.rpm

Red Hat Enterprise Linux AS version 4:

SRPMS:
fbbc6f06d4675b42e2bd0ba1bd1d6c57  util-linux-2.12a-16.EL4.12.src.rpm

i386:
beb2444974794726ad73218c92ca2336  util-linux-2.12a-16.EL4.12.i386.rpm

ia64:
811dcc7c533e68518555267c9c793b6e  util-linux-2.12a-16.EL4.12.ia64.rpm

ppc:
deedcd5da6fcedff331a3e71b09b74c6  util-linux-2.12a-16.EL4.12.ppc.rpm

s390:
390077578fdd458b402328d53ab574b8  util-linux-2.12a-16.EL4.12.s390.rpm

s390x:
c3324d5388df1577789df5b486ec810b  util-linux-2.12a-16.EL4.12.s390x.rpm

x86_64:
f8f59f58506acb3ba4c3ce9b5a8cebc0  util-linux-2.12a-16.EL4.12.x86_64.rpm

Red Hat Enterprise Linux Desktop version 4:

SRPMS:
fbbc6f06d4675b42e2bd0ba1bd1d6c57  util-linux-2.12a-16.EL4.12.src.rpm

i386:
beb2444974794726ad73218c92ca2336  util-linux-2.12a-16.EL4.12.i386.rpm

x86_64:
f8f59f58506acb3ba4c3ce9b5a8cebc0  util-linux-2.12a-16.EL4.12.x86_64.rpm

Red Hat Enterprise Linux ES version 4:

SRPMS:
fbbc6f06d4675b42e2bd0ba1bd1d6c57  util-linux-2.12a-16.EL4.12.src.rpm

i386:
beb2444974794726ad73218c92ca2336  util-linux-2.12a-16.EL4.12.i386.rpm

ia64:
811dcc7c533e68518555267c9c793b6e  util-linux-2.12a-16.EL4.12.ia64.rpm

x86_64:
f8f59f58506acb3ba4c3ce9b5a8cebc0  util-linux-2.12a-16.EL4.12.x86_64.rpm

Red Hat Enterprise Linux WS version 4:

SRPMS:
fbbc6f06d4675b42e2bd0ba1bd1d6c57  util-linux-2.12a-16.EL4.12.src.rpm

i386:
beb2444974794726ad73218c92ca2336  util-linux-2.12a-16.EL4.12.i386.rpm

ia64:
811dcc7c533e68518555267c9c793b6e  util-linux-2.12a-16.EL4.12.ia64.rpm

x86_64:
f8f59f58506acb3ba4c3ce9b5a8cebc0  util-linux-2.12a-16.EL4.12.x86_64.rpm

These packages are GPG signed by Red Hat for security.  Our key and 
details on how to verify the signature are available from
https://access.redhat.com/security/team/key#package

7. References:

https://www.cve.org/CVERecord?id=CAN-2005-2876
https://www.cve.org/CVERecord?id=CAN-2001-1494

8. Contact:

The Red Hat security contact is .  More contact
details at https://access.redhat.com/security/team/contact

Copyright 2005 Red Hat, Inc.