Buffer overflow in pngcheck



Risk High
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2020-35511
CWE-ID CWE-119
Exploitation vector Network
Public exploit N/A
Vulnerable software
 pngcheck
Universal components / Libraries / Libraries used by multiple products

Vendor libpng

Security Bulletin

This security bulletin contains one high risk vulnerability.

1) Buffer overflow

EUVDB-ID: #VU70428

Risk: High

CVSSv4.0: 6.1 [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-2020-35511

CWE-ID: CWE-119 - Memory corruption

Exploit availability: No

Description

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

The vulnerability exists due to a boundary error when processing PNG files within the pngcheck function. A remote attacker can pass a specially crafted PNG file to the application, trigger memory corruption and execute arbitrary code on the target system.

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

Mitigation

Install updates from vendor's website.

Vulnerable software versions

pngcheck: 2.0.0 - 2.4.0

CPE2.3 External links

https://www.libpng.org/pub/png/apps/pngcheck.html
https://www.debian.org/security/2022/dsa-5300
https://lists.debian.org/debian-lts-announce/2022/12/msg00024.html


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.



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