PT-2021-11460 · Png-Img · Png-Img

Anticomputer + 1 · Published 2021-02-19 · Updated 2021-12-10 · CVE-2020-28248

Positive Technologies (AI Summary)

CVSS v3.1

8.8

High

Base vector

AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions: png-img versions prior to 3.1.0

Description: The issue is caused by an integer overflow in the PngImg::InitStorage () function, leading to under-allocation of heap memory. This results in a heap-based buffer overflow when a crafted PNG file is loaded.

Recommendations: For versions prior to 3.1.0, update to version 3.1.0 or later to resolve the issue. As a temporary workaround, consider avoiding the use of the PngImg::InitStorage () function until a patch is available.

Exploit

Fix

Integer Overflow

Memory Corruption

Weakness Enumeration

CWE-190

CWE-787

Related Identifiers

CVE-2020-28248

GHSA-Q5WR-FVPQ-P67G

Affected Products

Png-Img

References · 8

• 🔥 https://securitylab.github.com/advisories/GHSL-2020-142-gemini-png-img · Exploit
• https://github.com/gemini-testing/png-img/commit/14ac462a32ca4b3b78f56502ac976d5b0222ce3d · Patch
• https://osv.dev/vulnerability/CVE-2020-28248 · Vendor Advisory
• https://osv.dev/vulnerability/GHSA-q5wr-fvpq-p67g · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2020-28248 · Security Note
• https://github.com/gemini-testing/png-img/compare/v3.0.0...v3.1.0 · Note
• https://github.com/gemini-testing/png-img · Note
• https://t.me/cvenotify/10186 · Telegram Post