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CVE-2023-42447— blurhash panics on parsing crafted inputs

Quick assessment

Affected
whisperfish blurhash-rs
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

blurhash-rs是Blurhash的纯 Rust 实现。 blurhash-rs 0.1.1版本存在安全漏洞，该漏洞源于对不受信任的输入进行多次防护时出现越界访问，blurhash 解析代码可能会出现恐慌。

CVSS 8.6 · High EPSS 0.62% · P48

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2023-42447

Vulnerability Information
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Vulnerability Title
blurhash panics on parsing crafted inputs
Source: CVE Program / CVE List V5
Vulnerability Description
blurhash-rs is a pure Rust implementation of Blurhash, software for encoding images into ASCII strings that can be turned into a gradient of colors representing the original image. In version 0.1.1, the blurhash parsing code may panic due to multiple panic-guarded out-of-bounds accesses on untrusted input. In a typical deployment, this may get triggered by feeding a maliciously crafted blurhashes over the network. These may include UTF-8 compliant strings containing multi-byte UTF-8 characters. A patch is available in version 0.2.0, which requires user intervention because of slight API churn. No known workarounds are available.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
未捕获的异常
Source: CVE Program / CVE List V5
Vulnerability Title
blurhash-rs 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
blurhash-rs是Blurhash的纯 Rust 实现。 blurhash-rs 0.1.1版本存在安全漏洞，该漏洞源于对不受信任的输入进行多次防护时出现越界访问，blurhash 解析代码可能会出现恐慌。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
whisperfish blurhash-rs = 0.1.1 -

II. Public POCs for CVE-2023-42447

# POC Description Source Link Shenlong Link
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Qwen3.6-35B-A3B · 44632 chars
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III. Intelligence Information for CVE-2023-42447

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Vendor Advisories for CVE-2023-42447 (1)

IV. Related Vulnerabilities

Same vendor: whisperfish
Same weakness: CWE-248

V. Comments for CVE-2023-42447

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