CVE-2021-26953 json
Read on uninitialized buffer in postscript
published 2021-01-30 5 y ago modified 2026-06-17 4 mo ago also GHSA-fhvc-gp6c-h2wx , RUSTSEC-2021-0017 , EUVD-2021-1702
- cvss
- 7.5
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.5%
- EPSS 1.5% chance of exploitation in 30 days, percentile 74%
- public exploits
- 0
- none known
Summary
An issue was discovered in the postscript crate before 0.14.0 for Rust. It might allow attackers to obtain sensitive information from uninitialized memory locations via a user-provided Read implementation.
Patch / fix
- crates.io postscript 0.14.0
- postscript_project postscript 0.14.0
Exploit prediction
1.51% chance of exploitation in the next 30 days, higher than 74% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- rustsec.org https://rustsec.org/advisories/RUSTSEC-2021-0017.html referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |
| NVD | 2.0 | 5.0 | AV:N/AC:L/Au:N/C:P/I:N/A:N |
| GitHub | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |
| OSV | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| crates.io | postscript | <0.14.0 >=0.0.0-0, <0.14.0 |
0.14.0 |
Classification
- Weakness
-
- CWE-908 Use of Uninitialized Resource
References
-
github.com
/bodoni/postscript/commit/8026286
web
-
rustsec.org
/advisories/RUSTSEC-2021-0017.html
web, exploit, vendor-advisory, advisory
-
nvd.nist.gov
/vuln/detail/CVE-2021-26953
advisory
-
github.com
/bodoni/postscript/issues/1
web, report
-
github.com
/bodoni/postscript
package
-
crates.io
/crates/postscript
package
Sources
- CVE List CVE-2021-26953
- GitHub Advisory GHSA-fhvc-gp6c-h2wx
- NVD CVE-2021-26953
- OSV RUSTSEC-2021-0017
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