Protect yourself against future threats.
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AUSCERT External Security Bulletin Redistribution
ESB-2009.0135 -- [UNIX/Linux][Debian]
New libpam-krb5 and libpam-heimdal packages fix local privilege escalation
12 February 2009
===========================================================================
AusCERT Security Bulletin Summary
---------------------------------
Product: libpam-krb5
libpam-heimdal
Publisher: Debian
Operating System: Debian GNU/Linux 4.0
UNIX variants (UNIX, Linux, OSX)
Impact: Increased Privileges
Denial of Service
Access: Existing Account
CVE Names: CVE-2009-0361 CVE-2009-0360
Original Bulletin: http://www.debian.org/security/2009/dsa-1721
http://www.debian.org/security/2009/dsa-1722
Comment: This bulletin contains two (2) Debian Security Advisories.
This advisory references vulnerabilities in products which run on
platforms other than Debian. It is recommended that administrators
running libpam-krb5 or libpam-heimdal check for an updated version
of the software for their operating system.
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Debian Security Advisory DSA-1721-1 security@debian.org
http://www.debian.org/security/ Moritz Muehlenhoff
February 11, 2009 http://www.debian.org/security/faq
- - ------------------------------------------------------------------------
Package : libpam-krb5
Vulnerability : several
Problem type : local
Debian-specific: no
CVE Id(s) : CVE-2009-0360 CVE-2009-0361
Several local vulnerabilities have been discovered in the PAM module
for MIT Kerberos. The Common Vulnerabilities and Exposures project
identifies the following problems:
CVE-2009-0360
Russ Allbery discovered that the Kerberos PAM module parsed
configuration settings from enviromnent variables when run from a
setuid context. This could lead to local privilege escalation if
an attacker points a setuid program using PAM authentication to a
Kerberos setup under her control.
CVE-2009-0361
Derek Chan discovered that the Kerberos PAM module allows
reinitialisation of user credentials when run from a setuid
context, resulting in potential local denial of service by
overwriting the credential cache file or to privilege escalation.
For the stable distribution (etch), these problems have been fixed in
version 2.6-1etch1.
For the upcoming stable distribution (lenny), these problems have been
fixed in version 3.11-4.
For the unstable distribution (sid), these problems will be fixed soon.
We recommend that you upgrade your libpam-krb5 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 4.0 alias etch
- - -------------------------------
Stable updates are available for alpha, amd64, arm, hppa, i386, ia64, mips, mipsel, powerpc, s390 and sparc.
Source archives:
http://security.debian.org/pool/updates/main/libp/libpam-krb5/libpam-krb5_2.6-1etch1.dsc
Size/MD5 checksum: 670 e24d2e134c78f26f571ae691a4dd3209
http://security.debian.org/pool/updates/main/libp/libpam-krb5/libpam-krb5_2.6.orig.tar.gz
Size/MD5 checksum: 119752 5742d0fb75ac148b7748387bc295f472
http://security.debian.org/pool/updates/main/libp/libpam-krb5/libpam-krb5_2.6-1etch1.diff.gz
Size/MD5 checksum: 11016 93ab13d570cbb2938e703fef2f06581e
alpha architecture (DEC Alpha)
http://security.debian.org/pool/updates/main/libp/libpam-krb5/libpam-krb5_2.6-1etch1_alpha.deb
Size/MD5 checksum: 58440 a526c51fb9e6c4193b8591000ff7b632
amd64 architecture (AMD x86_64 (AMD64))
http://security.debian.org/pool/updates/main/libp/libpam-krb5/libpam-krb5_2.6-1etch1_amd64.deb
Size/MD5 checksum: 57502 d8607f991e0da76e191bc2c468c7ed59
arm architecture (ARM)
http://security.debian.org/pool/updates/main/libp/libpam-krb5/libpam-krb5_2.6-1etch1_arm.deb
Size/MD5 checksum: 55372 e90de3bd06a9fc12d61866e718896c2e
hppa architecture (HP PA RISC)
http://security.debian.org/pool/updates/main/libp/libpam-krb5/libpam-krb5_2.6-1etch1_hppa.deb
Size/MD5 checksum: 58952 0774be83acdc3e36ddf9c55bbfc9ee16
i386 architecture (Intel ia32)
http://security.debian.org/pool/updates/main/libp/libpam-krb5/libpam-krb5_2.6-1etch1_i386.deb
Size/MD5 checksum: 56726 9d3eb6c5e1954393cde41f73b3824190
ia64 architecture (Intel ia64)
http://security.debian.org/pool/updates/main/libp/libpam-krb5/libpam-krb5_2.6-1etch1_ia64.deb
Size/MD5 checksum: 62910 874687c0aba8ecbce11bd126ff5c2585
mips architecture (MIPS (Big Endian))
http://security.debian.org/pool/updates/main/libp/libpam-krb5/libpam-krb5_2.6-1etch1_mips.deb
Size/MD5 checksum: 56894 0f10eccba6afdc540c23a39728df0bc9
mipsel architecture (MIPS (Little Endian))
http://security.debian.org/pool/updates/main/libp/libpam-krb5/libpam-krb5_2.6-1etch1_mipsel.deb
Size/MD5 checksum: 56886 55d1faffac772a008d46674442f480f9
powerpc architecture (PowerPC)
http://security.debian.org/pool/updates/main/libp/libpam-krb5/libpam-krb5_2.6-1etch1_powerpc.deb
Size/MD5 checksum: 58572 66ecfa0eb67c381dc8b2a63a1d7dec44
s390 architecture (IBM S/390)
http://security.debian.org/pool/updates/main/libp/libpam-krb5/libpam-krb5_2.6-1etch1_s390.deb
Size/MD5 checksum: 57928 73b6597abb7682378667210bd980a8b2
sparc architecture (Sun SPARC/UltraSPARC)
http://security.debian.org/pool/updates/main/libp/libpam-krb5/libpam-krb5_2.6-1etch1_sparc.deb
Size/MD5 checksum: 56390 7896f97c1d3b2daa5e94a195a12a11a6
These files will probably be moved into the stable distribution on
its next update.
- - ---------------------------------------------------------------------------------
For apt-get: deb http://security.debian.org/ stable/updates main
For dpkg-ftp: ftp://security.debian.org/debian-security dists/stable/updates/main
Mailing list: debian-security-announce@lists.debian.org
Package info: `apt-cache show <pkg>' and http://packages.debian.org/<pkg>
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Debian Security Advisory DSA-1722-1 security@debian.org
http://www.debian.org/security/ Moritz Muehlenhoff
February 11, 2009 http://www.debian.org/security/faq
- - ------------------------------------------------------------------------
Package : libpam-heimdal
Vulnerability : programming error
Problem type : local
Debian-specific: no
CVE Id(s) : CVE-2009-0361
Derek Chan discovered that the PAM module for the Heimdal Kerberos
implementation allows reinitialisation of user credentials when run
from a setuid context, resulting in potential local denial of service
by overwriting the credential cache file or to local privilege
escalation.
For the stable distribution (etch), this problem has been fixed in
version 2.5-1etch1.
For the upcoming stable distribution (lenny), this problem has been
fixed in version 3.10-2.1.
For the unstable distribution (sid), this problem will be fixed soon.
We recommend that you upgrade your libpam-heimdal 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 4.0 alias etch
- - -------------------------------
Stable updates are available for alpha, amd64, arm, hppa, i386, ia64, mips, mipsel, powerpc, s390 and sparc.
Source archives:
http://security.debian.org/pool/updates/main/libp/libpam-heimdal/libpam-heimdal_2.5-1etch1.dsc
Size/MD5 checksum: 699 09e39eb1552950761fdcc51babceef11
http://security.debian.org/pool/updates/main/libp/libpam-heimdal/libpam-heimdal_2.5-1etch1.diff.gz
Size/MD5 checksum: 8208 3e178b9617aadc2e030c07fec659330c
http://security.debian.org/pool/updates/main/libp/libpam-heimdal/libpam-heimdal_2.5.orig.tar.gz
Size/MD5 checksum: 117834 a80c66fcf0c48608abfb5ff0c443ab94
amd64 architecture (AMD x86_64 (AMD64))
http://security.debian.org/pool/updates/main/libp/libpam-heimdal/libpam-heimdal_2.5-1etch1_amd64.deb
Size/MD5 checksum: 38348 a9b7ddbb56515616567b46ead7d48213
arm architecture (ARM)
http://security.debian.org/pool/updates/main/libp/libpam-heimdal/libpam-heimdal_2.5-1etch1_arm.deb
Size/MD5 checksum: 36226 bdfaa1037d3b02494f28d2da628e038f
hppa architecture (HP PA RISC)
http://security.debian.org/pool/updates/main/libp/libpam-heimdal/libpam-heimdal_2.5-1etch1_hppa.deb
Size/MD5 checksum: 39432 f721ac5acbaeb33f26c6387ccc4e73da
i386 architecture (Intel ia32)
http://security.debian.org/pool/updates/main/libp/libpam-heimdal/libpam-heimdal_2.5-1etch1_i386.deb
Size/MD5 checksum: 37652 c1b56b35fb35c0d700de6ea53d753a4e
ia64 architecture (Intel ia64)
http://security.debian.org/pool/updates/main/libp/libpam-heimdal/libpam-heimdal_2.5-1etch1_ia64.deb
Size/MD5 checksum: 43594 2238be62f72a01bbac329d2b5dc0bbe4
mips architecture (MIPS (Big Endian))
http://security.debian.org/pool/updates/main/libp/libpam-heimdal/libpam-heimdal_2.5-1etch1_mips.deb
Size/MD5 checksum: 37544 80164efa305002d37aeb9c67b1a41f09
mipsel architecture (MIPS (Little Endian))
http://security.debian.org/pool/updates/main/libp/libpam-heimdal/libpam-heimdal_2.5-1etch1_mipsel.deb
Size/MD5 checksum: 37534 7d911ce54e2e8f078f117984ffbe4b97
powerpc architecture (PowerPC)
http://security.debian.org/pool/updates/main/libp/libpam-heimdal/libpam-heimdal_2.5-1etch1_powerpc.deb
Size/MD5 checksum: 39256 076218cc619f405bb07016ecb2eeaef6
s390 architecture (IBM S/390)
http://security.debian.org/pool/updates/main/libp/libpam-heimdal/libpam-heimdal_2.5-1etch1_s390.deb
Size/MD5 checksum: 38826 be7ee31cad3f876e7f2a343d8cf9f413
sparc architecture (Sun SPARC/UltraSPARC)
http://security.debian.org/pool/updates/main/libp/libpam-heimdal/libpam-heimdal_2.5-1etch1_sparc.deb
Size/MD5 checksum: 37166 bc2d46af607a9acd7978f6973cdc5ecf
These files will probably be moved into the stable distribution on
its next update.
- - ---------------------------------------------------------------------------------
For apt-get: deb http://security.debian.org/ stable/updates main
For dpkg-ftp: ftp://security.debian.org/debian-security dists/stable/updates/main
Mailing list: debian-security-announce@lists.debian.org
Package info: `apt-cache show <pkg>' and http://packages.debian.org/<pkg>
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