Articles / Debian: New git-core packag…

Debian: New git-core packages fix denial of service

It was discovered that git-daemon which is part of git-core, a popular distributed revision control system, is vulnerable to denial of service attacks caused by a programming mistake in handling requests containing extra unrecognized arguments which results in an infinite loop. While this is no problem for the daemon itself as every request will spawn a new git-daemon instance, this still results in a very high CPU consumption and might lead to denial of service conditions. Updated packages are available from security.debian.org.

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Hash: SHA1

- --------------------------------------------------------------------------
Debian Security Advisory DSA-1841-1                    security@debian.org
http://www.debian.org/security/                                 Nico Golde
July 25th, 2009                         http://www.debian.org/security/faq
- --------------------------------------------------------------------------

Package        : git-core
Vulnerability  : denial of service
Problem type   : remote
Debian-specific: no
Debian bug     : 532935
CVE ID         : CVE-2009-2108

It was discovered that git-daemon which is part of git-core, a popular
distributed revision control system, is vulnerable to denial of service
attacks caused by a programming mistake in handling requests containing
extra unrecognized arguments which results in an infinite loop. While
this is no problem for the daemon itself as every request will spawn a
new git-daemon instance, this still results in a very high CPU consumption
and might lead to denial of service conditions.


For the oldstable distribution (etch), this problem has been fixed in
version 1.4.4.4-4+etch3.

For the stable distribution (lenny), this problem has been fixed in
version 1.5.6.5-3+lenny2.

For the testing distribution (squeeze), this problem has been fixed in
version 1:1.6.3.3-1.

For the unstable distribution (sid), this problem has been fixed in
version 1:1.6.3.3-1.


We recommend that you upgrade your git-core packages.

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
- -------------------------------

Debian (oldstable)
- ------------------

Oldstable 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/g/git-core/git-core_1.4.4.4-4+etch3.diff.gz
   Size/MD5 checksum:    72125 920daf694b12a77e06f27324c61753fc
 http://security.debian.org/pool/updates/main/g/git-core/git-core_1.4.4.4.orig.tar.gz
   Size/MD5 checksum:  1054130 99bc7ea441226f792b6f796a838e7ef0
 http://security.debian.org/pool/updates/main/g/git-core/git-core_1.4.4.4-4+etch3.dsc
   Size/MD5 checksum:      805 9fa69bdac10c46441712bcb97a8a9e65

Architecture independent packages:

 http://security.debian.org/pool/updates/main/g/git-core/gitweb_1.4.4.4-4+etch3_all.deb
   Size/MD5 checksum:    89018 fa846f8c62895984a153dc720139280b
 http://security.debian.org/pool/updates/main/g/git-core/git-svn_1.4.4.4-4+etch3_all.deb
   Size/MD5 checksum:   100788 48ab52e7be61dcb5250ebda54e2d1126
 http://security.debian.org/pool/updates/main/g/git-core/git-cvs_1.4.4.4-4+etch3_all.deb
   Size/MD5 checksum:    94996 9233cd5e72daae479d299905eca84128
 http://security.debian.org/pool/updates/main/g/git-core/git-doc_1.4.4.4-4+etch3_all.deb
   Size/MD5 checksum:   572486 87737fc3ae4191051bd2712190f3fc19
 http://security.debian.org/pool/updates/main/g/git-core/git-email_1.4.4.4-4+etch3_all.deb
   Size/MD5 checksum:    63304 6c558ece1e80966bd662acc67749ac2e
 http://security.debian.org/pool/updates/main/g/git-core/git-daemon-run_1.4.4.4-4+etch3_all.deb
   Size/MD5 checksum:    55908 243dc1bc8acc538e45e2631c97771162
 http://security.debian.org/pool/updates/main/g/git-core/gitk_1.4.4.4-4+etch3_all.deb
   Size/MD5 checksum:   100154 892b5d12d207102f27db83d24b6178cb
 http://security.debian.org/pool/updates/main/g/git-core/git-arch_1.4.4.4-4+etch3_all.deb
   Size/MD5 checksum:    69016 4b5ddf573ebb0736e967e02a2b355cd3

alpha architecture (DEC Alpha)

 http://security.debian.org/pool/updates/main/g/git-core/git-core_1.4.4.4-4+etch3_alpha.deb
   Size/MD5 checksum:  3102126 6275cd993e070350bedcf9733e827da0

amd64 architecture (AMD x86_64 (AMD64))

 http://security.debian.org/pool/updates/main/g/git-core/git-core_1.4.4.4-4+etch3_amd64.deb
   Size/MD5 checksum:  2641296 3dff7bca20524d55e6f9bf2323a8afc1

arm architecture (ARM)

 http://security.debian.org/pool/updates/main/g/git-core/git-core_1.4.4.4-4+etch3_arm.deb
   Size/MD5 checksum:  2323022 de2a3964df5fe485a5fb56d009a62dc3

i386 architecture (Intel ia32)

 http://security.debian.org/pool/updates/main/g/git-core/git-core_1.4.4.4-4+etch3_i386.deb
   Size/MD5 checksum:  2353750 97fb3bb60dbe68eeb5aae2604949e85c

ia64 architecture (Intel ia64)

 http://security.debian.org/pool/updates/main/g/git-core/git-core_1.4.4.4-4+etch3_ia64.deb
   Size/MD5 checksum:  3815890 4f6f57eb772f523cc243190cec885dc7

mips architecture (MIPS (Big Endian))

 http://security.debian.org/pool/updates/main/g/git-core/git-core_1.4.4.4-4+etch3_mips.deb
   Size/MD5 checksum:  2784346 af422088e354d29ca3c59aba1dba8110

powerpc architecture (PowerPC)

 http://security.debian.org/pool/updates/main/g/git-core/git-core_1.4.4.4-4+etch3_powerpc.deb
   Size/MD5 checksum:  2654894 4cf6082256ec24bddce89d420920c49c

s390 architecture (IBM S/390)

 http://security.debian.org/pool/updates/main/g/git-core/git-core_1.4.4.4-4+etch3_s390.deb
   Size/MD5 checksum:  2628316 433af991f74293d69fe64a41130def76

sparc architecture (Sun SPARC/UltraSPARC)

 http://security.debian.org/pool/updates/main/g/git-core/git-core_1.4.4.4-4+etch3_sparc.deb
   Size/MD5 checksum:  2301672 c79c01e50d773e64a268d2fcebd5385b


Debian GNU/Linux 5.0 alias lenny
- --------------------------------

Debian (stable)
- ---------------

Stable updates are available for alpha, amd64, arm, armel, hppa, i386, ia64, mips, mipsel, powerpc, s390 and sparc.

Source archives:

 http://security.debian.org/pool/updates/main/g/git-core/git-core_1.5.6.5-3+lenny2.diff.gz
   Size/MD5 checksum:   226798 5f4cc4a02e92213b0dad6c82e856ec2f
 http://security.debian.org/pool/updates/main/g/git-core/git-core_1.5.6.5.orig.tar.gz
   Size/MD5 checksum:  2103619 c22da91c913a02305fd8a1a2298f75c9
 http://security.debian.org/pool/updates/main/g/git-core/git-core_1.5.6.5-3+lenny2.dsc
   Size/MD5 checksum:     1331 b56dfde38fdf7f22cc2e27d744a67e90

Architecture independent packages:

 http://security.debian.org/pool/updates/main/g/git-core/git-gui_1.5.6.5-3+lenny2_all.deb
   Size/MD5 checksum:   404642 e1036baa89a84e7162e4d487021f1881
 http://security.debian.org/pool/updates/main/g/git-core/git-arch_1.5.6.5-3+lenny2_all.deb
   Size/MD5 checksum:   230828 5caec9b6b0927af9de2df79b840b9d72
 http://security.debian.org/pool/updates/main/g/git-core/gitk_1.5.6.5-3+lenny2_all.deb
   Size/MD5 checksum:   301198 744e6545323dfabf86bedf142e2c8605
 http://security.debian.org/pool/updates/main/g/git-core/git-email_1.5.6.5-3+lenny2_all.deb
   Size/MD5 checksum:   229240 4d8a53527204bc0224869f55a8812209
 http://security.debian.org/pool/updates/main/g/git-core/git-svn_1.5.6.5-3+lenny2_all.deb
   Size/MD5 checksum:   268110 e3ad28d153ddaa0bcb56d717139e2e5f
 http://security.debian.org/pool/updates/main/g/git-core/git-daemon-run_1.5.6.5-3+lenny2_all.deb
   Size/MD5 checksum:   217726 4d256c215df877a8135f6df1069683e3
 http://security.debian.org/pool/updates/main/g/git-core/gitweb_1.5.6.5-3+lenny2_all.deb
   Size/MD5 checksum:   267514 1d05277557024dc82796a24b42519640
 http://security.debian.org/pool/updates/main/g/git-core/git-doc_1.5.6.5-3+lenny2_all.deb
   Size/MD5 checksum:  1248188 102d5fa3582d05804a1d16b5d01fb63d
 http://security.debian.org/pool/updates/main/g/git-core/git-cvs_1.5.6.5-3+lenny2_all.deb
   Size/MD5 checksum:   267328 9f7d38c746eb005ecc286002ddb878df

amd64 architecture (AMD x86_64 (AMD64))

 http://security.debian.org/pool/updates/main/g/git-core/git-core_1.5.6.5-3+lenny2_amd64.deb
   Size/MD5 checksum:  3427278 286213e394c88ef73638f667dd9ddc01

arm architecture (ARM)

 http://security.debian.org/pool/updates/main/g/git-core/git-core_1.5.6.5-3+lenny2_arm.deb
   Size/MD5 checksum:  3045546 e624c48ded4c1c00dacca13e7595b315

i386 architecture (Intel ia32)

 http://security.debian.org/pool/updates/main/g/git-core/git-core_1.5.6.5-3+lenny2_i386.deb
   Size/MD5 checksum:  3137530 a7a44faa83126a48803e02722b1cc5db

ia64 architecture (Intel ia64)

 http://security.debian.org/pool/updates/main/g/git-core/git-core_1.5.6.5-3+lenny2_ia64.deb
   Size/MD5 checksum:  4759194 8bc9a6f73d11bca6818fd6f16ca20033

mips architecture (MIPS (Big Endian))

 http://security.debian.org/pool/updates/main/g/git-core/git-core_1.5.6.5-3+lenny2_mips.deb
   Size/MD5 checksum:  3419202 e5ef2e34a07f5b6e1d1ede2184596925

mipsel architecture (MIPS (Little Endian))

 http://security.debian.org/pool/updates/main/g/git-core/git-core_1.5.6.5-3+lenny2_mipsel.deb
   Size/MD5 checksum:  3420668 a39d630c3911e5fdf912f8beb8cb36f5

s390 architecture (IBM S/390)

 http://security.debian.org/pool/updates/main/g/git-core/git-core_1.5.6.5-3+lenny2_s390.deb
   Size/MD5 checksum:  3411278 13619ebe267fa193c8530d0466225f41

sparc architecture (Sun SPARC/UltraSPARC)

 http://security.debian.org/pool/updates/main/g/git-core/git-core_1.5.6.5-3+lenny2_sparc.deb
   Size/MD5 checksum:  3069050 a18eb59eca3198e05a94ee896c71d272


 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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