CVE-2023-42447 json
blurhash panics on parsing crafted inputs
published 2023-09-19 3 y ago modified 2026-10-13 26 d ago also GHSA-cxvp-82cq-57h2 , RUSTSEC-2023-0083 , EUVD-2023-2491
- cvss
- 8.6
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.6%
- EPSS 0.6% chance of exploitation in 30 days, percentile 50%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- crates.io blurhash 0.2.0
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 2 y ago
Exploit prediction
0.62% chance of exploitation in the next 30 days, higher than 50% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 8.6 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H |
| NVD | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
| OSV | 3.1 | 8.6 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H |
| GitHub | 3.1 | 8.6 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| crates.io | blurhash | >=0.1.1, <0.2.0 >=0.0.0-0, <0.2.0 |
0.2.0 |
Affected products
- whisperfish blurhash-rs
Classification
References
-
github.com
/whisperfish/blurhash-rs/commit/e1b3209734d2a2704ed5ddcf61dc0beab6caa64d
web
-
github.com
/whisperfish/blurhash-rs/security/advisories/GHSA-cxvp-82cq-57h2
web, vendor-advisory
-
nvd.nist.gov
/vuln/detail/CVE-2023-42447
advisory
-
github.com
/whisperfish/blurhash-rs
package
-
github.com
/whisperfish/blurhash-rs/releases/tag/v0.2.0
web
-
crates.io
/crates/blurhash
package
-
rustsec.org
/advisories/RUSTSEC-2023-0083.html
advisory
-
cve.mitre.org
/cgi-bin/cvename.cgi?name=CVE-2023-42447
web
Sources
- CVE List CVE-2023-42447
- GitHub Advisory GHSA-cxvp-82cq-57h2
- NVD CVE-2023-42447
- OSV RUSTSEC-2023-0083
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