CVE-2018-20992 json
Uninitialized memory exposure in claxon
published 2018-08-25 8 y ago modified 2026-06-17 4 mo ago also GHSA-8c6g-4xc5-w96c , RUSTSEC-2018-0004 , EUVD-2021-1636
- cvss
- 6.5
- version 3.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.4%
- EPSS 1.4% chance of exploitation in 30 days, percentile 72%
- public exploits
- 0
- none known
Summary
An issue was discovered in the claxon crate before 0.4.1 for Rust. Uninitialized memory can be exposed because certain decode buffer sizes are mishandled.
Patch / fix
- crates.io claxon 0.3.2, 0.4.1
Exploit prediction
1.37% chance of exploitation in the next 30 days, higher than 72% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.0 | 6.5 | CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N |
| NVD | 2.0 | 4.3 | AV:N/AC:M/Au:N/C:P/I:N/A:N |
| OSV | 3.0 | 6.5 | CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N |
| GitHub | 3.0 | 6.5 | CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| crates.io | claxon | >=0.4.0, <0.4.1 <0.3.2 >=0.0.0-0, <0.3.2 >=0.4.0-0, <0.4.1 |
0.4.1 0.3.2 |
Classification
- Weakness
-
- CWE-908 Use of Uninitialized Resource
References
-
rustsec.org
/advisories/RUSTSEC-2018-0004.html
web, patch, third-party-advisory, advisory
-
github.com
/ruuda/claxon/commit/8f28ec275e412dd3af4f3cda460605512faf332c
web
-
nvd.nist.gov
/vuln/detail/CVE-2018-20992
advisory
-
github.com
/ruuda/claxon
package
-
github.com
/ruuda/claxon/releases/tag/v0.3.2
web
-
github.com
/ruuda/claxon/releases/tag/v0.4.1
web
-
crates.io
/crates/claxon
package
Sources
- CVE List CVE-2018-20992
- GitHub Advisory GHSA-8c6g-4xc5-w96c
- NVD CVE-2018-20992
- OSV RUSTSEC-2018-0004
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.