Executive Summary

Title libpng1.6 security update
Name DSA-4435 First vendor Publication 2019-04-27
Vendor Debian Last vendor Modification 2019-04-27
Severity (Vendor) N/A Revision 1

Security-Database Scoring CVSS v3

Cvss vector : N/A
Overall CVSS Score NA
Base Score NA Environmental Score NA
impact SubScore NA Temporal Score NA
Exploitabality Sub Score NA
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:N/AC:H/Au:N/C:N/I:N/A:P)
Cvss Base Score 2.6 Attack Range Network
Cvss Impact Score 2.9 Attack Complexity High
Cvss Expoit Score 4.9 Authentication None Required
Calculate full CVSS 2.0 Vectors scores


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

Original Source

Url : http://www.debian.org/security/2019/dsa-4435

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-416 Use After Free

CPE : Common Platform Enumeration

Application 1
Os 2
Os 1

Alert History

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Date Informations
2019-04-27 13:18:23
  • First insertion