Linux Security
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Linux Security

Debian: DSA-3399-1: libpng security update

Date 18 Nov 2015
712
Posted By LinuxSecurity Advisories
Several vulnerabilities have been discovered in the libpng PNG library. The Common Vulnerabilities and Exposures project identifies the following problems:

- -------------------------------------------------------------------------
Debian Security Advisory DSA-3399-1                   This email address is being protected from spambots. You need JavaScript enabled to view it.
https://www.debian.org/security/                     Salvatore Bonaccorso
November 18, 2015                     https://www.debian.org/security/faq
- -------------------------------------------------------------------------

Package        : libpng
CVE ID         : CVE-2015-7981 CVE-2015-8126
Debian Bug     : 803078 805113

Several vulnerabilities have been discovered in the libpng PNG library.
The Common Vulnerabilities and Exposures project identifies the
following problems:

CVE-2015-7981

    Qixue Xiao discovered an out-of-bounds read vulnerability in the
    png_convert_to_rfc1123 function. A remote attacker can potentially
    take advantage of this flaw to cause disclosure of information from
    process memory.

CVE-2015-8126

    Multiple buffer overflows were discovered in the png_set_PLTE and
    png_get_PLTE functions. A remote attacker can take advantage of this
    flaw to cause a denial of service (application crash) via a small
    bit-depth value in an IHDR (image header) chunk in a PNG image.

For the oldstable distribution (wheezy), these problems have been fixed
in version 1.2.49-1+deb7u1.

For the stable distribution (jessie), these problems have been fixed in
version 1.2.50-2+deb8u1.

For the unstable distribution (sid), these problems have been fixed in
version 1.2.54-1.

We recommend that you upgrade your libpng packages.

Further information about Debian Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://www.debian.org/security/

Mailing list: This email address is being protected from spambots. You need JavaScript enabled to view it.

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