Integer underflow in the png_check_keyword function in pngwutil.c in libpng 0.90 through 0.99, 1.0.x before 1.0.66, 1.1.x and 1.2.x before 1.2.56, 1.3.x and 1.4.x before 1.4.19, and 1.5.x before 1.5.26 allows remote attackers to have unspecified impact via a space character as a keyword in a PNG image, which triggers an out-of-bounds read.

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Advisories
Source ID Title
Debian DLA Debian DLA DLA-375-1 libpng security update
Debian DSA Debian DSA DSA-3443-1 libpng security update
Ubuntu USN Ubuntu USN USN-2861-1 libpng vulnerabilities
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Sun, 13 Jul 2025 13:45:00 +0000

Type Values Removed Values Added
Metrics epss

{'score': 0.15422}

epss

{'score': 0.17054}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2024-08-06T08:20:42.512Z

Reserved: 2015-12-10T00:00:00.000Z

Link: CVE-2015-8540

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Deferred

Published: 2016-04-14T14:59:03.287

Modified: 2025-04-12T10:46:40.837

Link: CVE-2015-8540

cve-icon Redhat

Severity : Low

Publid Date: 2015-12-10T00:00:00Z

Links: CVE-2015-8540 - Bugzilla

cve-icon OpenCVE Enrichment

No data.

Weaknesses