Security World: [SECURITY] [DSA 2052-1] New krb5 packages fix denial of service

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Debian Security Advisory DSA-2052-1 security@debian.org
http://www.debian.org/security/ Sebastien Delafond
May 24, 2010 http://www.debian.org/security/faq
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Package : krb5
Vulnerability : null pointer dereference
Problem type : remote
Debian-specific: no
CVE Id : CVE-2010-1321
Debian Bug : 582261

Shawn Emery discovered that in MIT Kerberos 5 (krb5), a system for
authenticating users and services on a network, a null pointer
dereference flaw in the Generic Security Service Application Program
Interface (GSS-API) library could allow an authenticated remote attacker
to crash any server application using the GSS-API authentication
mechanism, by sending a specially-crafted GSS-API token with a missing
checksum field.

For the stable distribution (lenny), this problem has been fixed in
version 1.6.dfsg.4~beta1-5lenny4.

For the testing distribution (squeeze), this problem has been fixed in
version 1.8.1+dfsg-3.

For the testing distribution (sid), this problem has been fixed in
version 1.8.1+dfsg-3.

We recommend that you upgrade your krb5 packages.

Upgrade instructions
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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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Source archives:

http://security.debian.org/pool/updates/main/k/krb5/krb5_1.6.dfsg.4~beta1-5lenny4.diff.gz
Size/MD5 checksum: 848699 4e016d8242b7648424be814a39616645
http://security.debian.org/pool/updates/main/k/krb5/krb5_1.6.dfsg.4~beta1-5lenny4.dsc
Size/MD5 checksum: 1537 2ffe877c62a1e84a71bf40ca09b00891
http://security.debian.org/pool/updates/main/k/krb5/krb5_1.6.dfsg.4~beta1.orig.tar.gz
Size/MD5 checksum: 11647547 08d6ce311204803acbe878ef0bb23c71

Architecture independent packages:

http://security.debian.org/pool/updates/main/k/krb5/krb5-doc_1.6.dfsg.4~beta1-5lenny4_all.deb
Size/MD5 checksum: 2148970 487480f9dd90a66ea45b30a46bd469fb

alpha architecture (DEC Alpha)

amd64 architecture (AMD x86_64 (AMD64))

arm architecture (ARM)

armel architecture (ARM EABI)

hppa architecture (HP PA RISC)

i386 architecture (Intel ia32)

ia64 architecture (Intel ia64)

mips architecture (MIPS (Big Endian))

mipsel architecture (MIPS (Little Endian))

powerpc architecture (PowerPC)

s390 architecture (IBM S/390)

sparc architecture (Sun SPARC/UltraSPARC)

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

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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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Security World

Monday, May 24, 2010

[SECURITY] [DSA 2052-1] New krb5 packages fix denial of service

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