Debian: New libpng packages fix several vulnerabilities
Posted by Benjamin D. Thomas   
Debian Several vulnerabilities have been discovered in libpng, a library for reading and writing PNG files.
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Debian Security Advisory DSA-1750-1                  security@debian.org
http://www.debian.org/security/                           Florian Weimer
March 22, 2009                        http://www.debian.org/security/faq
- ------------------------------------------------------------------------

Package        : libpng
Vulnerability  : several
Problem type   : local (remote)
Debian-specific: no
CVE Id(s)      : CVE-2007-2445 CVE-2007-5269 CVE-2008-1382 CVE-2008-5907 CVE-2008-6218 CVE-2009-0040
Debian Bug     : 446308 476669 516256 512665

Several vulnerabilities have been discovered in libpng, a library for
reading and writing PNG files. The Common Vulnerabilities and
Exposures project identifies the following problems:

The png_handle_tRNS function allows attackers to cause a denial of
service (application crash) via a grayscale PNG image with a bad tRNS
chunk CRC value. (CVE-2007-2445)

Certain chunk handlers allow attackers to cause a denial of service
(crash) via crafted pCAL, sCAL, tEXt, iTXt, and ztXT chunking in PNG
images, which trigger out-of-bounds read operations. (CVE-2007-5269)

libpng allows context-dependent attackers to cause a denial of service
(crash) and possibly execute arbitrary code via a PNG file with zero
length "unknown" chunks, which trigger an access of uninitialized
memory. (CVE-2008-1382)

The png_check_keyword might allow context-dependent attackers to set the
value of an arbitrary memory location to zero via vectors involving
creation of crafted PNG files with keywords. (CVE-2008-5907)

A memory leak in the png_handle_tEXt function allows context-dependent
attackers to cause a denial of service (memory exhaustion) via a crafted
PNG file. (CVE-2008-6218)

libpng allows context-dependent attackers to cause a denial of service
(application crash) or possibly execute arbitrary code via a crafted PNG
file that triggers a free of an uninitialized pointer in (1) the
png_read_png function, (2) pCAL chunk handling, or (3) setup of 16-bit
gamma tables. (CVE-2009-0040)

For the old stable distribution (etch), these problems have been fixed
in version1.2.15~beta5-1+etch2.

For the stable distribution (lenny), these problems have been fixed in
version 1.2.27-2+lenny2.  (Only CVE-2008-5907, CVE-2008-5907 and
CVE-2009-0040 affect the stable distribution.)

For the unstable distribution (sid), these problems have been fixed in
version 1.2.35-1.

We recommend that you upgrade your libpng 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
- -------------------------------

Source archives:

  http://security.debian.org/pool/updates/main/libp/libpng/libpng_1.2.15~beta5.orig.tar.gz
    Size/MD5 checksum:   829038 77ca14fcee1f1f4daaaa28123bd0b22d
  http://security.debian.org/pool/updates/main/libp/libpng/libpng_1.2.15~beta5-1+etch2.diff.gz
    Size/MD5 checksum:    18622 e1e1b7d74b9af5861bdcfc50154d2b4c
  http://security.debian.org/pool/updates/main/libp/libpng/libpng_1.2.15~beta5-1+etch2.dsc
    Size/MD5 checksum:     1033 a0668aeec893b093e1f8f68316a04041

Architecture independent packages:

  http://security.debian.org/pool/updates/main/libp/libpng/libpng3_1.2.15~beta5-1+etch2_all.deb
    Size/MD5 checksum:      882 eb0e501247bd91837c090cf3353e07c6

alpha architecture (DEC Alpha)

  http://security.debian.org/pool/updates/main/libp/libpng/libpng12-dev_1.2.15~beta5-1+etch2_alpha.deb
    Size/MD5 checksum:   214038 1dd9a6d646d8ae533fbabbb32e03149a
  http://security.debian.org/pool/updates/main/libp/libpng/libpng12-0_1.2.15~beta5-1+etch2_alpha.deb
    Size/MD5 checksum:   204478 d04c5a2151ca4aa8b1fa6f1b3078e418
  http://security.debian.org/pool/updates/main/libp/libpng/libpng12-0-udeb_1.2.15~beta5-1+etch2_alpha.udeb
    Size/MD5 checksum:    85270 1fcfca5bfd47a2f6611074832273ac0b

amd64 architecture (AMD x86_64 (AMD64))

  http://security.debian.org/pool/updates/main/libp/libpng/libpng12-0_1.2.15~beta5-1+etch2_amd64.deb
    Size/MD5 checksum:   188124 703758e444f77281b9104e20c358b521
  http://security.debian.org/pool/updates/main/libp/libpng/libpng12-dev_1.2.15~beta5-1+etch2_amd64.deb
    Size/MD5 checksum:   179186 d2596f942999be2acb79e77d12d99c2e
  http://security.debian.org/pool/updates/main/libp/libpng/libpng12-0-udeb_1.2.15~beta5-1+etch2_amd64.udeb
    Size/MD5 checksum:    69056 4bd8858ff3ef96c108d2f357e67c7b73

arm architecture (ARM)

  http://security.debian.org/pool/updates/main/libp/libpng/libpng12-0-udeb_1.2.15~beta5-1+etch2_arm.udeb
    Size/MD5 checksum:    63714 14bd7b3fa29b01ebc18b6611eea486d1
  http://security.debian.org/pool/updates/main/libp/libpng/libpng12-dev_1.2.15~beta5-1+etch2_arm.deb
    Size/MD5 checksum:   168764 54a349016bbdd6624fe8552bd951fee0
  http://security.debian.org/pool/updates/main/libp/libpng/libpng12-0_1.2.15~beta5-1+etch2_arm.deb
    Size/MD5 checksum:   182720 79e501f9c79d31b0f9c8b5a4f16f6a2e

hppa architecture (HP PA RISC)

  http://security.debian.org/pool/updates/main/libp/libpng/libpng12-0-udeb_1.2.15~beta5-1+etch2_hppa.udeb
    Size/MD5 checksum:    74440 e240adb3f2b0f8ed35a3c2fe2dd35da1
  http://security.debian.org/pool/updates/main/libp/libpng/libpng12-dev_1.2.15~beta5-1+etch2_hppa.deb
    Size/MD5 checksum:   187052 e5f7162d516fc3d8e953726d7fb5b6ae
  http://security.debian.org/pool/updates/main/libp/libpng/libpng12-0_1.2.15~beta5-1+etch2_hppa.deb
    Size/MD5 checksum:   194360 83928ed4057deade50551874a6a85d27

i386 architecture (Intel ia32)

  http://security.debian.org/pool/updates/main/libp/libpng/libpng12-0-udeb_1.2.15~beta5-1+etch2_i386.udeb
    Size/MD5 checksum:    67656 66d9d533e26e4f74fbdd01bf55fa40b1
  http://security.debian.org/pool/updates/main/libp/libpng/libpng12-0_1.2.15~beta5-1+etch2_i386.deb
    Size/MD5 checksum:   187710 20da5a533679aee19edf5cd0c339f2c9
  http://security.debian.org/pool/updates/main/libp/libpng/libpng12-dev_1.2.15~beta5-1+etch2_i386.deb
    Size/MD5 checksum:   170784 b19d4f0f8be4d65dbb847079ce2effa8

ia64 architecture (Intel ia64)

  http://security.debian.org/pool/updates/main/libp/libpng/libpng12-dev_1.2.15~beta5-1+etch2_ia64.deb
    Size/MD5 checksum:   227792 eb01ade8e4b4dba3215832b8c632548a
  http://security.debian.org/pool/updates/main/libp/libpng/libpng12-0-udeb_1.2.15~beta5-1+etch2_ia64.udeb
    Size/MD5 checksum:   108076 cb3ae7c7c66dcafce969608a437fdade
  http://security.debian.org/pool/updates/main/libp/libpng/libpng12-0_1.2.15~beta5-1+etch2_ia64.deb
    Size/MD5 checksum:   227388 83fa9e2ba1a370fe1b973688ab6096dd

mips architecture (MIPS (Big Endian))

  http://security.debian.org/pool/updates/main/libp/libpng/libpng12-dev_1.2.15~beta5-1+etch2_mips.deb
    Size/MD5 checksum:   187814 daa3c7c3aeae294c661324528e0f6c3e
  http://security.debian.org/pool/updates/main/libp/libpng/libpng12-0_1.2.15~beta5-1+etch2_mips.deb
    Size/MD5 checksum:   187016 e556557c1c570c66656232422af38c8e
  http://security.debian.org/pool/updates/main/libp/libpng/libpng12-0-udeb_1.2.15~beta5-1+etch2_mips.udeb
    Size/MD5 checksum:    67730 ae7ea1cd95eacae754ba35e9fae19818

mipsel architecture (MIPS (Little Endian))

  http://security.debian.org/pool/updates/main/libp/libpng/libpng12-0-udeb_1.2.15~beta5-1+etch2_mipsel.udeb
    Size/MD5 checksum:    67996 4be0aa40152ac55a7355aea2204d7888
  http://security.debian.org/pool/updates/main/libp/libpng/libpng12-dev_1.2.15~beta5-1+etch2_mipsel.deb
    Size/MD5 checksum:   187852 19a6eddae81d4f9d768f8c0ef442b0ed
  http://security.debian.org/pool/updates/main/libp/libpng/libpng12-0_1.2.15~beta5-1+etch2_mipsel.deb
    Size/MD5 checksum:   187282 119ae6083edd419fed3fe970cc507919

powerpc architecture (PowerPC)

  http://security.debian.org/pool/updates/main/libp/libpng/libpng12-dev_1.2.15~beta5-1+etch2_powerpc.deb
    Size/MD5 checksum:   178452 e48dc544abc3df3ec474930639e29469
  http://security.debian.org/pool/updates/main/libp/libpng/libpng12-0_1.2.15~beta5-1+etch2_powerpc.deb
    Size/MD5 checksum:   186636 b8319bb815dec618288cdd35cd37c191
  http://security.debian.org/pool/updates/main/libp/libpng/libpng12-0-udeb_1.2.15~beta5-1+etch2_powerpc.udeb
    Size/MD5 checksum:    67430 a3717e7c30011e60be99ce04983f2984

s390 architecture (IBM S/390)

  http://security.debian.org/pool/updates/main/libp/libpng/libpng12-dev_1.2.15~beta5-1+etch2_s390.deb
    Size/MD5 checksum:   178548 790f01dc85511343a4ef9b4832f3b1fa
  http://security.debian.org/pool/updates/main/libp/libpng/libpng12-0_1.2.15~beta5-1+etch2_s390.deb
    Size/MD5 checksum:   190648 a79ea20f0b8af58765d2b14ec276aa5a
  http://security.debian.org/pool/updates/main/libp/libpng/libpng12-0-udeb_1.2.15~beta5-1+etch2_s390.udeb
    Size/MD5 checksum:    71438 aa83c3a2ab4da51670da3eafcedddac9

sparc architecture (Sun SPARC/UltraSPARC)

  http://security.debian.org/pool/updates/main/libp/libpng/libpng12-0-udeb_1.2.15~beta5-1+etch2_sparc.udeb
    Size/MD5 checksum:    64914 13bcdda845e00493e1b25413452302d0
  http://security.debian.org/pool/updates/main/libp/libpng/libpng12-0_1.2.15~beta5-1+etch2_sparc.deb
    Size/MD5 checksum:   184734 0f0e7865607948f07a604c86fd4f94bb
  http://security.debian.org/pool/updates/main/libp/libpng/libpng12-dev_1.2.15~beta5-1+etch2_sparc.deb
    Size/MD5 checksum:   172558 2853d84c9f9823d0bfe77b1fca00348d

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

Source archives:

  http://security.debian.org/pool/updates/main/libp/libpng/libpng_1.2.27-2+lenny2.diff.gz
    Size/MD5 checksum:    16783 64d84ee2a3098905d361711dc96698c9
  http://security.debian.org/pool/updates/main/libp/libpng/libpng_1.2.27.orig.tar.gz
    Size/MD5 checksum:   783204 13a0de401db1972a8e68f47d5bdadd13
  http://security.debian.org/pool/updates/main/libp/libpng/libpng_1.2.27-2+lenny2.dsc
    Size/MD5 checksum:     1492 8c82810267b23916b6207fa40f0b6bce

Architecture independent packages:

  http://security.debian.org/pool/updates/main/libp/libpng/libpng3_1.2.27-2+lenny2_all.deb
    Size/MD5 checksum:      878 8d46f725bd49014cdb4e15508baea203

alpha architecture (DEC Alpha)

  http://security.debian.org/pool/updates/main/libp/libpng/libpng12-dev_1.2.27-2+lenny2_alpha.deb
    Size/MD5 checksum:   287802 470918bf3d543a1128df53d4bed78b3f
  http://security.debian.org/pool/updates/main/libp/libpng/libpng12-0_1.2.27-2+lenny2_alpha.deb
    Size/MD5 checksum:   182372 df321c1623004da3cf1daacae952e8b6
  http://security.debian.org/pool/updates/main/libp/libpng/libpng12-0-udeb_1.2.27-2+lenny2_alpha.udeb
    Size/MD5 checksum:    86746 975dccb76f777be09e8e5353704bf6bf

amd64 architecture (AMD x86_64 (AMD64))

  http://security.debian.org/pool/updates/main/libp/libpng/libpng12-0-udeb_1.2.27-2+lenny2_amd64.udeb
    Size/MD5 checksum:    71944 3f3bdfdee4699b4b3e5c793686330036
  http://security.debian.org/pool/updates/main/libp/libpng/libpng12-dev_1.2.27-2+lenny2_amd64.deb
    Size/MD5 checksum:   254598 122c139abf34eb461eca9847ec9dffe7
  http://security.debian.org/pool/updates/main/libp/libpng/libpng12-0_1.2.27-2+lenny2_amd64.deb
    Size/MD5 checksum:   167190 1c17a5378b2e6b8fa8760847510f208b

arm architecture (ARM)

  http://security.debian.org/pool/updates/main/libp/libpng/libpng12-dev_1.2.27-2+lenny2_arm.deb
    Size/MD5 checksum:   245788 9d3fe182d56caad3f9d8a436ca109b57
  http://security.debian.org/pool/updates/main/libp/libpng/libpng12-0-udeb_1.2.27-2+lenny2_arm.udeb
    Size/MD5 checksum:    64754 81ee041de30e2e5343d38965ab0645c1
  http://security.debian.org/pool/updates/main/libp/libpng/libpng12-0_1.2.27-2+lenny2_arm.deb
    Size/MD5 checksum:   160222 5741adc357ec8f3f09c4c8e72f02ec88

armel architecture (ARM EABI)

  http://security.debian.org/pool/updates/main/libp/libpng/libpng12-0-udeb_1.2.27-2+lenny2_armel.udeb
    Size/MD5 checksum:    67178 71747c7d6f7bffde46bb38055948b781
  http://security.debian.org/pool/updates/main/libp/libpng/libpng12-dev_1.2.27-2+lenny2_armel.deb
    Size/MD5 checksum:   246680 bb9df968f72c62d5adceab0079c86e02
  http://security.debian.org/pool/updates/main/libp/libpng/libpng12-0_1.2.27-2+lenny2_armel.deb
    Size/MD5 checksum:   163028 60bf255a23031c9c105d3582ed2c21bd

hppa architecture (HP PA RISC)

  http://security.debian.org/pool/updates/main/libp/libpng/libpng12-dev_1.2.27-2+lenny2_hppa.deb
    Size/MD5 checksum:   261298 a0bac6595474dc5778c764fab4acd9be
  http://security.debian.org/pool/updates/main/libp/libpng/libpng12-0_1.2.27-2+lenny2_hppa.deb
    Size/MD5 checksum:   170170 de217ce54775d5f648ad369f4ce7cb72
  http://security.debian.org/pool/updates/main/libp/libpng/libpng12-0-udeb_1.2.27-2+lenny2_hppa.udeb
    Size/MD5 checksum:    74124 affd4f1155bd1d571615b6c767886974

i386 architecture (Intel ia32)

  http://security.debian.org/pool/updates/main/libp/libpng/libpng12-0-udeb_1.2.27-2+lenny2_i386.udeb
    Size/MD5 checksum:    70314 865ea6726b205467e770d56d1530fdd2
  http://security.debian.org/pool/updates/main/libp/libpng/libpng12-0_1.2.27-2+lenny2_i386.deb
    Size/MD5 checksum:   165892 cfcd37b7eee72625d13f09328bc24e23
  http://security.debian.org/pool/updates/main/libp/libpng/libpng12-dev_1.2.27-2+lenny2_i386.deb
    Size/MD5 checksum:   247056 bc860a52608d966576f581c27e89a86c

ia64 architecture (Intel ia64)

  http://security.debian.org/pool/updates/main/libp/libpng/libpng12-dev_1.2.27-2+lenny2_ia64.deb
    Size/MD5 checksum:   305532 d6f329a47a523353fcd527c48abb078c
  http://security.debian.org/pool/updates/main/libp/libpng/libpng12-0_1.2.27-2+lenny2_ia64.deb
    Size/MD5 checksum:   207604 78b003ade0b48d1510f436f2e5008588
  http://security.debian.org/pool/updates/main/libp/libpng/libpng12-0-udeb_1.2.27-2+lenny2_ia64.udeb
    Size/MD5 checksum:   112070 a0f1e5e8a85bcc1995faa1e031f5e16e

mips architecture (MIPS (Big Endian))

  http://security.debian.org/pool/updates/main/libp/libpng/libpng12-0-udeb_1.2.27-2+lenny2_mips.udeb
    Size/MD5 checksum:    68198 a68e0ba1f7a39bd9984414f4160de5bc
  http://security.debian.org/pool/updates/main/libp/libpng/libpng12-dev_1.2.27-2+lenny2_mips.deb
    Size/MD5 checksum:   262138 f3580912592abe14609134cab2242728
  http://security.debian.org/pool/updates/main/libp/libpng/libpng12-0_1.2.27-2+lenny2_mips.deb
    Size/MD5 checksum:   163666 0c9f75230c396553e6062eb397d6b95c

mipsel architecture (MIPS (Little Endian))

  http://security.debian.org/pool/updates/main/libp/libpng/libpng12-0_1.2.27-2+lenny2_mipsel.deb
    Size/MD5 checksum:   163956 dfda7e322af96e8ae5104cfd9f955e92
  http://security.debian.org/pool/updates/main/libp/libpng/libpng12-0-udeb_1.2.27-2+lenny2_mipsel.udeb
    Size/MD5 checksum:    68468 9c357d2d831dca03ed0887c58a18c523
  http://security.debian.org/pool/updates/main/libp/libpng/libpng12-dev_1.2.27-2+lenny2_mipsel.deb
    Size/MD5 checksum:   262162 a1d0ba1b7adb92a95180e6d65b398b5b

powerpc architecture (PowerPC)

  http://security.debian.org/pool/updates/main/libp/libpng/libpng12-0-udeb_1.2.27-2+lenny2_powerpc.udeb
    Size/MD5 checksum:    70814 3053467f8b8864802cc7261742abfa00
  http://security.debian.org/pool/updates/main/libp/libpng/libpng12-0_1.2.27-2+lenny2_powerpc.deb
    Size/MD5 checksum:   166240 13acfd773d2a31bd555ac1936411fe95
  http://security.debian.org/pool/updates/main/libp/libpng/libpng12-dev_1.2.27-2+lenny2_powerpc.deb
    Size/MD5 checksum:   253322 d4a722d84e5c2f263d72a59dea00ce17

s390 architecture (IBM S/390)

  http://security.debian.org/pool/updates/main/libp/libpng/libpng12-dev_1.2.27-2+lenny2_s390.deb
    Size/MD5 checksum:   253696 bc748b49195dcd01b5288349e3e85510
  http://security.debian.org/pool/updates/main/libp/libpng/libpng12-0-udeb_1.2.27-2+lenny2_s390.udeb
    Size/MD5 checksum:    73624 f35735be37fc376c56941795a185c742
  http://security.debian.org/pool/updates/main/libp/libpng/libpng12-0_1.2.27-2+lenny2_s390.deb
    Size/MD5 checksum:   169052 4cf962619d634ea59a39d14c32134594

sparc architecture (Sun SPARC/UltraSPARC)

  http://security.debian.org/pool/updates/main/libp/libpng/libpng12-0-udeb_1.2.27-2+lenny2_sparc.udeb
    Size/MD5 checksum:    66216 07bcad5c11908d2fe6d358dfc94d9051
  http://security.debian.org/pool/updates/main/libp/libpng/libpng12-dev_1.2.27-2+lenny2_sparc.deb
    Size/MD5 checksum:   247212 f388365559e6b9313aa6048c6fa341f9
  http://security.debian.org/pool/updates/main/libp/libpng/libpng12-0_1.2.27-2+lenny2_sparc.deb
    Size/MD5 checksum:   162316 16f01a96b1fec79e9614df831dba6a05


  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