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

medium Nessus Plugin ID 124344


The remote Debian host is missing a security-related 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.


Upgrade the libpng1.6 packages.

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

See Also

Plugin Details

Severity: Medium

ID: 124344

File Name: debian_DSA-4435.nasl

Version: 1.4

Type: local

Agent: unix

Published: 4/29/2019

Updated: 12/6/2022

Supported Sensors: Agentless Assessment, Frictionless Assessment Agent, Nessus Agent, Nessus

Risk Information


Risk Factor: Medium

Score: 4.4


Risk Factor: Low

Base Score: 2.6

Temporal Score: 1.9

Vector: CVSS2#AV:N/AC:H/Au:N/C:N/I:N/A:P


Risk Factor: Medium

Base Score: 5.3

Temporal Score: 4.6

Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:debian:debian_linux:libpng1.6, cpe:/o:debian:debian_linux:9.0

Required KB Items: Host/local_checks_enabled, Host/Debian/release, Host/Debian/dpkg-l

Exploit Ease: No known exploits are available

Patch Publication Date: 4/27/2019

Vulnerability Publication Date: 2/4/2019

Reference Information

CVE: CVE-2019-7317

DSA: 4435