Debian: DSA-4435-1: libpng1.6 security update

A use-after-free vulnerability was discovered in the png_image_free() function in the libpng PNG library, which could lead to denial of service or potentially the execution of arbitrary code if a malformed image is processed.

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Debian Security Advisory DSA-4435-1                   This email address is being protected from spambots. You need JavaScript enabled to view it.
https://www.debian.org/security/                     Salvatore Bonaccorso
April 27, 2019                        https://www.debian.org/security/faq
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Package        : libpng1.6
CVE ID         : CVE-2019-7317
Debian Bug     : 921355

A use-after-free vulnerability was discovered in the png_image_free()
function in the libpng PNG library, which could lead to denial of
service or potentially the execution of arbitrary code if a malformed
image is processed.

For the stable distribution (stretch), this problem has been fixed in
version 1.6.28-1+deb9u1.

We recommend that you upgrade your libpng1.6 packages.

For the detailed security status of libpng1.6 please refer to its
security tracker page at:
https://security-tracker.debian.org/tracker/libpng1.6

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/

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