VulnerabilityModified

CVE-2023-42447

In version 0.1.1, the blurhash parsing code may panic due to multiple panic-guarded out-of-bounds accesses on untrusted input.

HIGH 7.5EPSS 0.52%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (0.52%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

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.

CVSS 3.1: 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS: 0.52% probability · 42th percentile
CISA KEV: Not listed
Weakness: CWE-248, CWE-392, CWE-1284
Affected: whisperfish/blurhash-rs
Source: security-advisories@github.com

References

https://github.com/whisperfish/blurhash-rs/security/advisories/GHSA-cxvp-82cq-57h2Vendor Advisory
https://github.com/whisperfish/blurhash-rs/security/advisories/GHSA-cxvp-82cq-57h2Vendor Advisory

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.