CVE-2020-28248
HIGH
8.8
CVSS Score
Published: February 19, 2021 at 11:05 PM UTC
Updated: June 17, 2026 at 03:10 AM UTC
1 product affected across 1 vendorPng Img
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Severity
HIGH8.8
Exploit prediction
EPSS 2%
Description
An integer overflow in the PngImg::InitStorage_() function of png-img before 3.1.0 leads to an under-allocation of heap memory and subsequently an exploitable heap-based buffer overflow when loading a crafted PNG file.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
v < 3.1.0
Affected range stops below 3.1.0, so it looks safe — our inference, not a vendor statement
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
Patch and advisory references
References (4)
x_refsource_MISCPatchThird Party Advisory
Source: [email protected]
https://github.com/gemini-testing/png-img/commit/14ac462a32ca4b3b78f56502ac976d5b0222ce3dx_refsource_MISCRelease NotesThird Party Advisory
Source: [email protected]
https://github.com/gemini-testing/png-img/compare/v3.0.0...v3.1.0x_refsource_MISCExploitThird Party Advisory
Source: [email protected]
https://securitylab.github.com/advisories/GHSL-2020-142-gemini-png-imgCVSS
- Attack Vector
- NETWORK
- Complexity
- LOW
- Privileges
- NONE
- User Interaction
- REQUIRED
- Scope
- UNCHANGED
- Confidentiality
- HIGH
- Integrity
- HIGH
- Availability
- HIGH
Vector?
Quick Info
StatusMODIFIED
CWE
CWE-190CWE-787
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