Integer underflow in libpng - CVE-2015-8540

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Main Vulnerability Database Vulnerabilities #VU96992

Integer underflow in libpng - CVE-2015-8540

Published: September 10, 2024


Vulnerability identifier: #VU96992
CSH Severity: High
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
CVE-ID: CVE-2015-8540
CWE-ID: CWE-191
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vendor: libpng
Affected software:
libpng

Detailed vulnerability description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to integer underflow within the png_check_keyword() function in pngwutil.c. A remote attacker can trick the victim to open a specially crafted PNG file, trigger an integer underflow and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.


How to mitigate CVE-2015-8540

Install updates from vendor's website.

Sources