Out-of-bounds Read in Bumpalo Project

CVE-2020-35861

An issue was discovered in the bumpalo crate before 3.2.1 for Rust. The realloc feature allows the reading of unknown memory. Attackers can potentially read cryptographic keys.

Vulnerability class: Buffer Overflow

EPSS: 0.015 (71.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

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

Frequently asked questions

What is CVE-2020-35861?
CVE-2020-35861 is a high-severity vulnerability in Bumpalo Project, classified under Out-of-bounds Read. CVSS score: 7.5/10. Published 2020-12-31.
How severe is CVE-2020-35861?
High severity. CVSS v3 base score is 7.5 out of 10.
Is CVE-2020-35861 known to be exploited?
1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.