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Security Advisory ncompress security update

Advisory: RHSA-2006:0663-13
Type: Security Advisory
Severity: Low
Issued on: 2006-09-12
Last updated on: 2006-09-12
Affected Products: Red Hat Desktop (v. 3)
Red Hat Desktop (v. 4)
Red Hat Enterprise Linux AS (v. 2.1)
Red Hat Enterprise Linux AS (v. 3)
Red Hat Enterprise Linux AS (v. 4)
Red Hat Enterprise Linux ES (v. 2.1)
Red Hat Enterprise Linux ES (v. 3)
Red Hat Enterprise Linux ES (v. 4)
Red Hat Enterprise Linux WS (v. 2.1)
Red Hat Enterprise Linux WS (v. 3)
Red Hat Enterprise Linux WS (v. 4)
Red Hat Linux Advanced Workstation 2.1 for the Itanium Processor
CVEs (cve.mitre.org): CVE-2006-1168

Details

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.

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.


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.

Updated packages

Red Hat Desktop (v. 3)

SRPMS:
ncompress-4.2.4-39.rhel3.src.rpm
File outdated by:  RHBA-2007:0413
    MD5: 5470ff0372b3eb8fa6da847646f0a3dc
 
IA-32:
ncompress-4.2.4-39.rhel3.i386.rpm
File outdated by:  RHBA-2007:0413
    MD5: bfd9c50245674413a25f6acd53bef47b
 
x86_64:
ncompress-4.2.4-39.rhel3.x86_64.rpm
File outdated by:  RHBA-2007:0413
    MD5: 767f6aea14635db8913d2778e57627c1
 
Red Hat Desktop (v. 4)

SRPMS:
ncompress-4.2.4-43.rhel4.src.rpm
File outdated by:  RHBA-2006:0722
    MD5: a99ca43a68463aded1fa28d0184288ae
 
IA-32:
ncompress-4.2.4-43.rhel4.i386.rpm
File outdated by:  RHBA-2006:0722
    MD5: 93e2cece010a5f63060d895bfbc50349
 
x86_64:
ncompress-4.2.4-43.rhel4.x86_64.rpm
File outdated by:  RHBA-2006:0722
    MD5: b997549a109c544417f861c509ce2466
 
Red Hat Enterprise Linux AS (v. 2.1)

SRPMS:
ncompress-4.2.4-38.rhel2.src.rpm     MD5: eb6007ec73c99cfae684316e03a60b06
 
IA-32:
ncompress-4.2.4-38.rhel2.i386.rpm     MD5: 0c44556d4004264fc56dfc4d7881990e
 
IA-64:
ncompress-4.2.4-38.rhel2.ia64.rpm     MD5: ad1f16ed8f253b3d952a06e97bb4cb24
 
Red Hat Enterprise Linux AS (v. 3)

SRPMS:
ncompress-4.2.4-39.rhel3.src.rpm
File outdated by:  RHBA-2007:0413
    MD5: 5470ff0372b3eb8fa6da847646f0a3dc
 
IA-32:
ncompress-4.2.4-39.rhel3.i386.rpm
File outdated by:  RHBA-2007:0413
    MD5: bfd9c50245674413a25f6acd53bef47b
 
IA-64:
ncompress-4.2.4-39.rhel3.ia64.rpm
File outdated by:  RHBA-2007:0413
    MD5: 6e32698aab73a2cfa37198d52dbd8279
 
PPC:
ncompress-4.2.4-39.rhel3.ppc.rpm
File outdated by:  RHBA-2007:0413
    MD5: 16e51ba793dfaaa9c125ef97030c8202
 
s390:
ncompress-4.2.4-39.rhel3.s390.rpm
File outdated by:  RHBA-2007:0413
    MD5: 694a79848689bf49165ffa70dbd48bfa
 
s390x:
ncompress-4.2.4-39.rhel3.s390x.rpm
File outdated by:  RHBA-2007:0413
    MD5: 7882f3e72361f310507d991cb19a2b25
 
x86_64:
ncompress-4.2.4-39.rhel3.x86_64.rpm
File outdated by:  RHBA-2007:0413
    MD5: 767f6aea14635db8913d2778e57627c1
 
Red Hat Enterprise Linux AS (v. 4)

SRPMS:
ncompress-4.2.4-43.rhel4.src.rpm
File outdated by:  RHBA-2006:0722
    MD5: a99ca43a68463aded1fa28d0184288ae
 
IA-32:
ncompress-4.2.4-43.rhel4.i386.rpm
File outdated by:  RHBA-2006:0722
    MD5: 93e2cece010a5f63060d895bfbc50349
 
IA-64:
ncompress-4.2.4-43.rhel4.ia64.rpm
File outdated by:  RHBA-2006:0722
    MD5: 35239dd95950b6622ace488bcbe9e50b
 
PPC:
ncompress-4.2.4-43.rhel4.ppc.rpm
File outdated by:  RHBA-2006:0722
    MD5: e41b5bacce5d1a5115d3013b32d2f25b
 
s390:
ncompress-4.2.4-43.rhel4.s390.rpm
File outdated by:  RHBA-2006:0722
    MD5: 37d7fffa2e8a8e24421b2e26e4f3843c
 
s390x:
ncompress-4.2.4-43.rhel4.s390x.rpm
File outdated by:  RHBA-2006:0722
    MD5: 9f0f16b32fd0bdd5c4cea2bcfc3ad85e
 
x86_64:
ncompress-4.2.4-43.rhel4.x86_64.rpm
File outdated by:  RHBA-2006:0722
    MD5: b997549a109c544417f861c509ce2466
 
Red Hat Enterprise Linux ES (v. 2.1)

SRPMS:
ncompress-4.2.4-38.rhel2.src.rpm     MD5: eb6007ec73c99cfae684316e03a60b06
 
IA-32:
ncompress-4.2.4-38.rhel2.i386.rpm     MD5: 0c44556d4004264fc56dfc4d7881990e
 
Red Hat Enterprise Linux ES (v. 3)

SRPMS:
ncompress-4.2.4-39.rhel3.src.rpm
File outdated by:  RHBA-2007:0413
    MD5: 5470ff0372b3eb8fa6da847646f0a3dc
 
IA-32:
ncompress-4.2.4-39.rhel3.i386.rpm
File outdated by:  RHBA-2007:0413
    MD5: bfd9c50245674413a25f6acd53bef47b
 
IA-64:
ncompress-4.2.4-39.rhel3.ia64.rpm
File outdated by:  RHBA-2007:0413
    MD5: 6e32698aab73a2cfa37198d52dbd8279
 
x86_64:
ncompress-4.2.4-39.rhel3.x86_64.rpm
File outdated by:  RHBA-2007:0413
    MD5: 767f6aea14635db8913d2778e57627c1
 
Red Hat Enterprise Linux ES (v. 4)

SRPMS:
ncompress-4.2.4-43.rhel4.src.rpm
File outdated by:  RHBA-2006:0722
    MD5: a99ca43a68463aded1fa28d0184288ae
 
IA-32:
ncompress-4.2.4-43.rhel4.i386.rpm
File outdated by:  RHBA-2006:0722
    MD5: 93e2cece010a5f63060d895bfbc50349
 
IA-64:
ncompress-4.2.4-43.rhel4.ia64.rpm
File outdated by:  RHBA-2006:0722
    MD5: 35239dd95950b6622ace488bcbe9e50b
 
x86_64:
ncompress-4.2.4-43.rhel4.x86_64.rpm
File outdated by:  RHBA-2006:0722
    MD5: b997549a109c544417f861c509ce2466
 
Red Hat Enterprise Linux WS (v. 2.1)

SRPMS:
ncompress-4.2.4-38.rhel2.src.rpm     MD5: eb6007ec73c99cfae684316e03a60b06
 
IA-32:
ncompress-4.2.4-38.rhel2.i386.rpm     MD5: 0c44556d4004264fc56dfc4d7881990e
 
Red Hat Enterprise Linux WS (v. 3)

SRPMS:
ncompress-4.2.4-39.rhel3.src.rpm
File outdated by:  RHBA-2007:0413
    MD5: 5470ff0372b3eb8fa6da847646f0a3dc
 
IA-32:
ncompress-4.2.4-39.rhel3.i386.rpm
File outdated by:  RHBA-2007:0413
    MD5: bfd9c50245674413a25f6acd53bef47b
 
IA-64:
ncompress-4.2.4-39.rhel3.ia64.rpm
File outdated by:  RHBA-2007:0413
    MD5: 6e32698aab73a2cfa37198d52dbd8279
 
x86_64:
ncompress-4.2.4-39.rhel3.x86_64.rpm
File outdated by:  RHBA-2007:0413
    MD5: 767f6aea14635db8913d2778e57627c1
 
Red Hat Enterprise Linux WS (v. 4)

SRPMS:
ncompress-4.2.4-43.rhel4.src.rpm
File outdated by:  RHBA-2006:0722
    MD5: a99ca43a68463aded1fa28d0184288ae
 
IA-32:
ncompress-4.2.4-43.rhel4.i386.rpm
File outdated by:  RHBA-2006:0722
    MD5: 93e2cece010a5f63060d895bfbc50349
 
IA-64:
ncompress-4.2.4-43.rhel4.ia64.rpm
File outdated by:  RHBA-2006:0722
    MD5: 35239dd95950b6622ace488bcbe9e50b
 
x86_64:
ncompress-4.2.4-43.rhel4.x86_64.rpm
File outdated by:  RHBA-2006:0722
    MD5: b997549a109c544417f861c509ce2466
 
Red Hat Linux Advanced Workstation 2.1 for the Itanium Processor

SRPMS:
ncompress-4.2.4-38.rhel2.src.rpm     MD5: eb6007ec73c99cfae684316e03a60b06
 
IA-64:
ncompress-4.2.4-38.rhel2.ia64.rpm     MD5: ad1f16ed8f253b3d952a06e97bb4cb24
 
(The unlinked packages above are only available from the Red Hat Network)

Bugs fixed (see bugzilla for more information)

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


References



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

The Red Hat security contact is secalert@redhat.com. More contact details at http://www.redhat.com/security/team/contact/