What is CVE-2020-35859?

CVE-2020-35859 is a critical-severity vulnerability in Lucet-Runtime-Internals Project, classified under Out-of-bounds Read. CVSS score: 9.1/10. Published 2020-12-31.

How severe is CVE-2020-35859?

Critical severity. CVSS v3 base score is 9.1 out of 10.

Is CVE-2020-35859 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Out-of-bounds Read in Lucet-Runtime-Internals Project

CVE-2020-35859

An issue was discovered in the lucet-runtime-internals crate before 0.5.1 for Rust. It mishandles sigstack allocation. Guest programs may be able to obtain sensitive information, or guest programs can experience memory corruption.

Vulnerability class: Buffer Overflow

EPSS: 0.015 (71.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.1 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H.

Affected products

Lucet-runtime-internals_project Lucet-runtime-internals
N/a — versions n/a

Weakness classification (CWE)

Public proof-of-concept exploits

Artisan-Lab/Rust-memory-safety-bugs

References

cve@mitre.org (Patch, Third Party Advisory, x_refsource_MISC)

Frequently asked questions

What is CVE-2020-35859?: CVE-2020-35859 is a critical-severity vulnerability in Lucet-Runtime-Internals Project, classified under Out-of-bounds Read. CVSS score: 9.1/10. Published 2020-12-31.
How severe is CVE-2020-35859?: Critical severity. CVSS v3 base score is 9.1 out of 10.
Is CVE-2020-35859 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.