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Debian: DSA-2032-1: New libpng packages fix several vulnerabilities

Date 11 Apr 2010
Posted By LinuxSecurity Advisories
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:
Hash: SHA1

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Debian Security Advisory DSA-2032-1                  This email address is being protected from spambots. You need JavaScript enabled to view it.                        Giuseppe Iuculano
April 11, 2010              
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Package        : libpng
Vulnerability  : several
Problem type   : local (remote)
Debian-specific: no
CVE Id(s)      : CVE-2009-2042 CVE-2010-0205
Debian Bugs    : 533676 572308

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:


libpng does not properly parse 1-bit interlaced images with width values
that are not divisible by 8, which causes libpng to include
uninitialized bits in certain rows of a PNG file and might allow remote
attackers to read portions of sensitive memory via "out-of-bounds
pixels" in the file.


libpng does not properly handle compressed ancillary-chunk data that has
a disproportionately large uncompressed representation, which allows
remote attackers to cause a denial of service (memory and CPU
consumption, and  application hang) via a crafted PNG file

For the stable distribution (lenny), these problems have been fixed in
version 1.2.27-2+lenny3.

For the testing (squeeze) and unstable (sid) distribution, these
problems have been fixed in version 1.2.43-1

We recommend that you upgrade your libpng 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 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:
    Size/MD5 checksum:     1201 abe81b0d3c4aa7a1fa418e29f2c5b297
    Size/MD5 checksum:   783204 13a0de401db1972a8e68f47d5bdadd13
    Size/MD5 checksum:    19687 60ede1843ceb8a1f127c54b847a74dfa

Architecture independent packages:
    Size/MD5 checksum:      880 028b00e28aad8282714776c5dcca64a8

alpha architecture (DEC Alpha)
    Size/MD5 checksum:    86562 d9c50af59951e972557d393409b75bf2
    Size/MD5 checksum:   287752 1d7d84aee223c0933d1a616722607096
    Size/MD5 checksum:   182436 001ecbf421f70ca521a3968f1d14c874

amd64 architecture (AMD x86_64 (AMD64))
    Size/MD5 checksum:    71912 78fbe1a6568671e4c557ec12e29481b0
    Size/MD5 checksum:   254500 481312a64867f31c363b7fbba9cfe171
    Size/MD5 checksum:   167864 3d285c20d2f080313f82eb09dcb7261b

arm architecture (ARM)
    Size/MD5 checksum:    64566 a4a9742190557d14beae40133fb46cf1
    Size/MD5 checksum:   245438 a16f62e771622e05812172f7c7066504
    Size/MD5 checksum:   159612 81facf06de458dd6b1e84a78bb1acfc8

armel architecture (ARM EABI)
    Size/MD5 checksum:    67028 56fc4199656d239231c7b8d8e035fead
    Size/MD5 checksum:   245930 9f64181bc16af0ad0de4ba2e86b25706
    Size/MD5 checksum:   162504 3129e1c2360fcba0309257e2b1dff8ca

hppa architecture (HP PA RISC)
    Size/MD5 checksum:    73858 9d5a53e3258b5149bee68a4d20067bf9
    Size/MD5 checksum:   169602 12ddce05c84ef675c348a1e64f1a277c
    Size/MD5 checksum:   261788 9297cb916e57e2f912de3f16bcbae475

i386 architecture (Intel ia32)
    Size/MD5 checksum:   246968 083d472fd65f884c91dff5926e538342
    Size/MD5 checksum:   165560 233945ee4b1e442357276431ce495a4c
    Size/MD5 checksum:    70094 769336f4574678e56931e1a1eaf6be6a

ia64 architecture (Intel ia64)
    Size/MD5 checksum:   305324 42d7265034b84662467bb75456653787
    Size/MD5 checksum:   111776 ad716022a6a22371bb83f3966ebe17d4
    Size/MD5 checksum:   206866 572b9d18c5adba74a4e5b99714968a60

mipsel architecture (MIPS (Little Endian))
    Size/MD5 checksum:   262242 e905771ac3fa905cc03a3ddc8f9872dd
    Size/MD5 checksum:    68370 4d44877866357a0fd8474fd8fe183616
    Size/MD5 checksum:   164154 93c02dbae7dfe59b77ce4b683b82eaef

powerpc architecture (PowerPC)
    Size/MD5 checksum:   166402 1d470464fe2b493aef8d95dde5fd95d8
    Size/MD5 checksum:    70682 1dd9713672dbac4a7434f1f96a1184b5
    Size/MD5 checksum:   253478 7a87577e07ed0bb9e759b973b2d7cf18

s390 architecture (IBM S/390)
    Size/MD5 checksum:    73470 52b1a911a81f133a83a387663aa3ffb2
    Size/MD5 checksum:   252988 18b4c8b17b3e30ab6cce89c21c99fbfc
    Size/MD5 checksum:   169264 601982b9a97707ab05e1f4469cd8e20e

sparc architecture (Sun SPARC/UltraSPARC)
    Size/MD5 checksum:   161562 facd643206903acfa3a503c1d69e9248
    Size/MD5 checksum:    66032 cbbe521a9a5629987603a57b8c9f35be
    Size/MD5 checksum:   247212 76b8fe782fd0e5f7546bd535f8d442bc

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

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For apt-get: deb stable/updates main
For dpkg-ftp: dists/stable/updates/main
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Package info: `apt-cache show ' and


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