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Red Hat Security Advisory
Synopsis: Low: ncompress security update
Advisory ID: RHSA-2006:0663-01
Advisory URL: htt
ps://rhn.redhat.com/errata/RHSA-2006-0663.html
Issue date: 2006-09-12
Updated on: 2006-09-12
Product: Red Hat Enterprise Linux
CVE Names: CVE-2006-1168
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1. Summary:
Updated ncompress packages that address a security issue and
fix bugs are
now available.
This update has been rated as having low 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 ncompress package contains file compression and
decompression
utilities, which are compatible with the original UNIX
compress utility (.Z
file extensions).
Tavis Ormandy of the Google Security Team discovered a lack
of bounds
checking in ncompress. An attacker could create a carefully
crafted file
that could execute arbitrary code if uncompressed by a
victim. (CVE-2006-1168)
In addition, two bugs that affected Red Hat Enterprise Linux
4 ncompress
packages were fixed:
* The display statistics and compression results in verbose
mode were not
shown when operating on zero length files.
* An attempt to compress zero length files resulted in an
unexpected return
code.
Users of ncompress are advised to 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.co
m/):
189215 - ncompress does not display statistics when
compressing 0 length files
189216 - Bad return code when compressing 0 length files
201335 - CVE-2006-1168 Possibility to underflow a .bss
buffer with attacker controlled data
6. RPMs required:
Red Hat Enterprise Linux AS (Advanced Server) version 2.1:
SRPMS:
ftp://updates.redhat.com/enterprise/2.1AS/en/os/SRPMS/ncompr
ess-4.2.4-38.rhel2.src.rpm
eb6007ec73c99cfae684316e03a60b06
ncompress-4.2.4-38.rhel2.src.rpm
i386:
0c44556d4004264fc56dfc4d7881990e
ncompress-4.2.4-38.rhel2.i386.rpm
ia64:
ad1f16ed8f253b3d952a06e97bb4cb24
ncompress-4.2.4-38.rhel2.ia64.rpm
Red Hat Linux Advanced Workstation 2.1:
SRPMS:
ftp://updates.redhat.com/enterprise/2.1AW/en/os/SRPMS/ncompr
ess-4.2.4-38.rhel2.src.rpm
eb6007ec73c99cfae684316e03a60b06
ncompress-4.2.4-38.rhel2.src.rpm
ia64:
ad1f16ed8f253b3d952a06e97bb4cb24
ncompress-4.2.4-38.rhel2.ia64.rpm
Red Hat Enterprise Linux ES version 2.1:
SRPMS:
ftp://updates.redhat.com/enterprise/2.1ES/en/os/SRPMS/ncompr
ess-4.2.4-38.rhel2.src.rpm
eb6007ec73c99cfae684316e03a60b06
ncompress-4.2.4-38.rhel2.src.rpm
i386:
0c44556d4004264fc56dfc4d7881990e
ncompress-4.2.4-38.rhel2.i386.rpm
Red Hat Enterprise Linux WS version 2.1:
SRPMS:
ftp://updates.redhat.com/enterprise/2.1WS/en/os/SRPMS/ncompr
ess-4.2.4-38.rhel2.src.rpm
eb6007ec73c99cfae684316e03a60b06
ncompress-4.2.4-38.rhel2.src.rpm
i386:
0c44556d4004264fc56dfc4d7881990e
ncompress-4.2.4-38.rhel2.i386.rpm
Red Hat Enterprise Linux AS version 3:
SRPMS:
ftp://updates.redhat.com/enterprise/3AS/en/os/SRPMS/ncompres
s-4.2.4-39.rhel3.src.rpm
5470ff0372b3eb8fa6da847646f0a3dc
ncompress-4.2.4-39.rhel3.src.rpm
i386:
bfd9c50245674413a25f6acd53bef47b
ncompress-4.2.4-39.rhel3.i386.rpm
00c0c000396c42c052e0378ce219292b
ncompress-debuginfo-4.2.4-39.rhel3.i386.rpm
ia64:
6e32698aab73a2cfa37198d52dbd8279
ncompress-4.2.4-39.rhel3.ia64.rpm
19b12f415a0c3a07520b753b56bccf64
ncompress-debuginfo-4.2.4-39.rhel3.ia64.rpm
ppc:
16e51ba793dfaaa9c125ef97030c8202
ncompress-4.2.4-39.rhel3.ppc.rpm
3305aa2ccaafa6b2b839a6f14a083907
ncompress-debuginfo-4.2.4-39.rhel3.ppc.rpm
s390:
694a79848689bf49165ffa70dbd48bfa
ncompress-4.2.4-39.rhel3.s390.rpm
a304fa968d23454da477ee87aac33b70
ncompress-debuginfo-4.2.4-39.rhel3.s390.rpm
s390x:
7882f3e72361f310507d991cb19a2b25
ncompress-4.2.4-39.rhel3.s390x.rpm
f38fff0242d9316bb9f5b0ad091aedb4
ncompress-debuginfo-4.2.4-39.rhel3.s390x.rpm
x86_64:
767f6aea14635db8913d2778e57627c1
ncompress-4.2.4-39.rhel3.x86_64.rpm
da1af0e9c76e10c3d82544ff6d71069f
ncompress-debuginfo-4.2.4-39.rhel3.x86_64.rpm
Red Hat Desktop version 3:
SRPMS:
ftp://updates.redhat.com/enterprise/3desktop/en/os/SRPMS/nco
mpress-4.2.4-39.rhel3.src.rpm
5470ff0372b3eb8fa6da847646f0a3dc
ncompress-4.2.4-39.rhel3.src.rpm
i386:
bfd9c50245674413a25f6acd53bef47b
ncompress-4.2.4-39.rhel3.i386.rpm
00c0c000396c42c052e0378ce219292b
ncompress-debuginfo-4.2.4-39.rhel3.i386.rpm
x86_64:
767f6aea14635db8913d2778e57627c1
ncompress-4.2.4-39.rhel3.x86_64.rpm
da1af0e9c76e10c3d82544ff6d71069f
ncompress-debuginfo-4.2.4-39.rhel3.x86_64.rpm
Red Hat Enterprise Linux ES version 3:
SRPMS:
ftp://updates.redhat.com/enterprise/3ES/en/os/SRPMS/ncompres
s-4.2.4-39.rhel3.src.rpm
5470ff0372b3eb8fa6da847646f0a3dc
ncompress-4.2.4-39.rhel3.src.rpm
i386:
bfd9c50245674413a25f6acd53bef47b
ncompress-4.2.4-39.rhel3.i386.rpm
00c0c000396c42c052e0378ce219292b
ncompress-debuginfo-4.2.4-39.rhel3.i386.rpm
ia64:
6e32698aab73a2cfa37198d52dbd8279
ncompress-4.2.4-39.rhel3.ia64.rpm
19b12f415a0c3a07520b753b56bccf64
ncompress-debuginfo-4.2.4-39.rhel3.ia64.rpm
x86_64:
767f6aea14635db8913d2778e57627c1
ncompress-4.2.4-39.rhel3.x86_64.rpm
da1af0e9c76e10c3d82544ff6d71069f
ncompress-debuginfo-4.2.4-39.rhel3.x86_64.rpm
Red Hat Enterprise Linux WS version 3:
SRPMS:
ftp://updates.redhat.com/enterprise/3WS/en/os/SRPMS/ncompres
s-4.2.4-39.rhel3.src.rpm
5470ff0372b3eb8fa6da847646f0a3dc
ncompress-4.2.4-39.rhel3.src.rpm
i386:
bfd9c50245674413a25f6acd53bef47b
ncompress-4.2.4-39.rhel3.i386.rpm
00c0c000396c42c052e0378ce219292b
ncompress-debuginfo-4.2.4-39.rhel3.i386.rpm
ia64:
6e32698aab73a2cfa37198d52dbd8279
ncompress-4.2.4-39.rhel3.ia64.rpm
19b12f415a0c3a07520b753b56bccf64
ncompress-debuginfo-4.2.4-39.rhel3.ia64.rpm
x86_64:
767f6aea14635db8913d2778e57627c1
ncompress-4.2.4-39.rhel3.x86_64.rpm
da1af0e9c76e10c3d82544ff6d71069f
ncompress-debuginfo-4.2.4-39.rhel3.x86_64.rpm
Red Hat Enterprise Linux AS version 4:
SRPMS:
ftp://updates.redhat.com/enterprise/4AS/en/os/SRPMS/ncompres
s-4.2.4-43.rhel4.src.rpm
a99ca43a68463aded1fa28d0184288ae
ncompress-4.2.4-43.rhel4.src.rpm
i386:
93e2cece010a5f63060d895bfbc50349
ncompress-4.2.4-43.rhel4.i386.rpm
5d7637bf393d30cfef3b4262d19ec3aa
ncompress-debuginfo-4.2.4-43.rhel4.i386.rpm
ia64:
35239dd95950b6622ace488bcbe9e50b
ncompress-4.2.4-43.rhel4.ia64.rpm
0be7f133a43ce77859cf86635135a86e
ncompress-debuginfo-4.2.4-43.rhel4.ia64.rpm
ppc:
e41b5bacce5d1a5115d3013b32d2f25b
ncompress-4.2.4-43.rhel4.ppc.rpm
9134e58e31b06abf6bde5fadeb1c03e7
ncompress-debuginfo-4.2.4-43.rhel4.ppc.rpm
s390:
37d7fffa2e8a8e24421b2e26e4f3843c
ncompress-4.2.4-43.rhel4.s390.rpm
dfce5613e4d2d3edcae690a1cf4155e3
ncompress-debuginfo-4.2.4-43.rhel4.s390.rpm
s390x:
9f0f16b32fd0bdd5c4cea2bcfc3ad85e
ncompress-4.2.4-43.rhel4.s390x.rpm
54331af9e2989a8fa82410c3dea3e66c
ncompress-debuginfo-4.2.4-43.rhel4.s390x.rpm
x86_64:
b997549a109c544417f861c509ce2466
ncompress-4.2.4-43.rhel4.x86_64.rpm
e35693ccd5bd2b496068670ef8735702
ncompress-debuginfo-4.2.4-43.rhel4.x86_64.rpm
Red Hat Enterprise Linux Desktop version 4:
SRPMS:
ftp://updates.redhat.com/enterprise/4Desktop/en/os/SRPMS/nco
mpress-4.2.4-43.rhel4.src.rpm
a99ca43a68463aded1fa28d0184288ae
ncompress-4.2.4-43.rhel4.src.rpm
i386:
93e2cece010a5f63060d895bfbc50349
ncompress-4.2.4-43.rhel4.i386.rpm
5d7637bf393d30cfef3b4262d19ec3aa
ncompress-debuginfo-4.2.4-43.rhel4.i386.rpm
x86_64:
b997549a109c544417f861c509ce2466
ncompress-4.2.4-43.rhel4.x86_64.rpm
e35693ccd5bd2b496068670ef8735702
ncompress-debuginfo-4.2.4-43.rhel4.x86_64.rpm
Red Hat Enterprise Linux ES version 4:
SRPMS:
ftp://updates.redhat.com/enterprise/4ES/en/os/SRPMS/ncompres
s-4.2.4-43.rhel4.src.rpm
a99ca43a68463aded1fa28d0184288ae
ncompress-4.2.4-43.rhel4.src.rpm
i386:
93e2cece010a5f63060d895bfbc50349
ncompress-4.2.4-43.rhel4.i386.rpm
5d7637bf393d30cfef3b4262d19ec3aa
ncompress-debuginfo-4.2.4-43.rhel4.i386.rpm
ia64:
35239dd95950b6622ace488bcbe9e50b
ncompress-4.2.4-43.rhel4.ia64.rpm
0be7f133a43ce77859cf86635135a86e
ncompress-debuginfo-4.2.4-43.rhel4.ia64.rpm
x86_64:
b997549a109c544417f861c509ce2466
ncompress-4.2.4-43.rhel4.x86_64.rpm
e35693ccd5bd2b496068670ef8735702
ncompress-debuginfo-4.2.4-43.rhel4.x86_64.rpm
Red Hat Enterprise Linux WS version 4:
SRPMS:
ftp://updates.redhat.com/enterprise/4WS/en/os/SRPMS/ncompres
s-4.2.4-43.rhel4.src.rpm
a99ca43a68463aded1fa28d0184288ae
ncompress-4.2.4-43.rhel4.src.rpm
i386:
93e2cece010a5f63060d895bfbc50349
ncompress-4.2.4-43.rhel4.i386.rpm
5d7637bf393d30cfef3b4262d19ec3aa
ncompress-debuginfo-4.2.4-43.rhel4.i386.rpm
ia64:
35239dd95950b6622ace488bcbe9e50b
ncompress-4.2.4-43.rhel4.ia64.rpm
0be7f133a43ce77859cf86635135a86e
ncompress-debuginfo-4.2.4-43.rhel4.ia64.rpm
x86_64:
b997549a109c544417f861c509ce2466
ncompress-4.2.4-43.rhel4.x86_64.rpm
e35693ccd5bd2b496068670ef8735702
ncompress-debuginfo-4.2.4-43.rhel4.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
htt
ps://www.redhat.com/security/team/key/#package
7. References:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-200
6-1168
http://www.redhat.com/security/updates/classification/
#low
8. Contact:
The Red Hat security contact is <secalert redhat.com>. More contact
details at https:/
/www.redhat.com/security/team/contact/
Copyright 2006 Red Hat, Inc.
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