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Debian Security Advisory DSA-4435-1                   security@debian.org
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/source-package/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/

Mailing list: debian-security-announce@lists.debian.org

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

April 27, 2019
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 arbi...

Summary

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/source-package/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/

Mailing list: debian-security-announce@lists.debian.org

Severity
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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