Debian Security Advisory

DSA-2032-1 libpng -- several vulnerabilities

Date Reported:

11 Apr 2010

Affected Packages:

libpng

Vulnerable:

Yes

Security database references:

In the Debian bugtracking system: Bug 533676, Bug 572308.
In Mitre's CVE dictionary: CVE-2009-2042, CVE-2010-0205.

More information:

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:

CVE-2009-2042
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.
CVE-2010-0205
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.

Fixed in:

Debian GNU/Linux 5.0 (lenny)

Source:: http://security.debian.org/pool/updates/main/libp/libpng/libpng_1.2.27-2+lenny3.dsc; http://security.debian.org/pool/updates/main/libp/libpng/libpng_1.2.27.orig.tar.gz; http://security.debian.org/pool/updates/main/libp/libpng/libpng_1.2.27-2+lenny3.diff.gz
Architecture-independent component:: http://security.debian.org/pool/updates/main/libp/libpng/libpng3_1.2.27-2+lenny3_all.deb
Alpha:: http://security.debian.org/pool/updates/main/libp/libpng/libpng12-0-udeb_1.2.27-2+lenny3_alpha.udeb; http://security.debian.org/pool/updates/main/libp/libpng/libpng12-dev_1.2.27-2+lenny3_alpha.deb; http://security.debian.org/pool/updates/main/libp/libpng/libpng12-0_1.2.27-2+lenny3_alpha.deb
AMD64:: http://security.debian.org/pool/updates/main/libp/libpng/libpng12-0-udeb_1.2.27-2+lenny3_amd64.udeb; http://security.debian.org/pool/updates/main/libp/libpng/libpng12-dev_1.2.27-2+lenny3_amd64.deb; http://security.debian.org/pool/updates/main/libp/libpng/libpng12-0_1.2.27-2+lenny3_amd64.deb
ARM:: http://security.debian.org/pool/updates/main/libp/libpng/libpng12-0-udeb_1.2.27-2+lenny3_arm.udeb; http://security.debian.org/pool/updates/main/libp/libpng/libpng12-dev_1.2.27-2+lenny3_arm.deb; http://security.debian.org/pool/updates/main/libp/libpng/libpng12-0_1.2.27-2+lenny3_arm.deb
ARM EABI:: http://security.debian.org/pool/updates/main/libp/libpng/libpng12-0-udeb_1.2.27-2+lenny3_armel.udeb; http://security.debian.org/pool/updates/main/libp/libpng/libpng12-dev_1.2.27-2+lenny3_armel.deb; http://security.debian.org/pool/updates/main/libp/libpng/libpng12-0_1.2.27-2+lenny3_armel.deb
HP Precision:: http://security.debian.org/pool/updates/main/libp/libpng/libpng12-0-udeb_1.2.27-2+lenny3_hppa.udeb; http://security.debian.org/pool/updates/main/libp/libpng/libpng12-0_1.2.27-2+lenny3_hppa.deb; http://security.debian.org/pool/updates/main/libp/libpng/libpng12-dev_1.2.27-2+lenny3_hppa.deb
Intel IA-32:: http://security.debian.org/pool/updates/main/libp/libpng/libpng12-dev_1.2.27-2+lenny3_i386.deb; http://security.debian.org/pool/updates/main/libp/libpng/libpng12-0_1.2.27-2+lenny3_i386.deb; http://security.debian.org/pool/updates/main/libp/libpng/libpng12-0-udeb_1.2.27-2+lenny3_i386.udeb
Intel IA-64:: http://security.debian.org/pool/updates/main/libp/libpng/libpng12-dev_1.2.27-2+lenny3_ia64.deb; http://security.debian.org/pool/updates/main/libp/libpng/libpng12-0-udeb_1.2.27-2+lenny3_ia64.udeb; http://security.debian.org/pool/updates/main/libp/libpng/libpng12-0_1.2.27-2+lenny3_ia64.deb
Little-endian MIPS:: http://security.debian.org/pool/updates/main/libp/libpng/libpng12-dev_1.2.27-2+lenny3_mipsel.deb; http://security.debian.org/pool/updates/main/libp/libpng/libpng12-0-udeb_1.2.27-2+lenny3_mipsel.udeb; http://security.debian.org/pool/updates/main/libp/libpng/libpng12-0_1.2.27-2+lenny3_mipsel.deb
PowerPC:: http://security.debian.org/pool/updates/main/libp/libpng/libpng12-0_1.2.27-2+lenny3_powerpc.deb; http://security.debian.org/pool/updates/main/libp/libpng/libpng12-0-udeb_1.2.27-2+lenny3_powerpc.udeb; http://security.debian.org/pool/updates/main/libp/libpng/libpng12-dev_1.2.27-2+lenny3_powerpc.deb
IBM S/390:: http://security.debian.org/pool/updates/main/libp/libpng/libpng12-0-udeb_1.2.27-2+lenny3_s390.udeb; http://security.debian.org/pool/updates/main/libp/libpng/libpng12-dev_1.2.27-2+lenny3_s390.deb; http://security.debian.org/pool/updates/main/libp/libpng/libpng12-0_1.2.27-2+lenny3_s390.deb
Sun Sparc:: http://security.debian.org/pool/updates/main/libp/libpng/libpng12-0_1.2.27-2+lenny3_sparc.deb; http://security.debian.org/pool/updates/main/libp/libpng/libpng12-0-udeb_1.2.27-2+lenny3_sparc.udeb; http://security.debian.org/pool/updates/main/libp/libpng/libpng12-dev_1.2.27-2+lenny3_sparc.deb

MD5 checksums of the listed files are available in the original advisory.