9.8

CVE-2020-36443: libp2p libp2p-deflate Use of Uninitialized Resource

CVSS: 9.8v3.1CriticalModified
AliasesGHSA-gvcp-948f-8f2pRUSTSEC-2020-0123
Published 08-08-2021Last modified 04-08-2024
Open JSON

Vulnerability summary

CVE-2020-36443 is a critical (CVSS 9.8) Use of Uninitialized Resource vulnerability in libp2p libp2p-deflate. EPSS estimates a 1.23% chance of exploitation in the next 30 days, higher than 68.5% of scored vulnerabilities.

Overall risk
70/100
0100
High · default modelHow is this calculated?
CVSS score
9.8/10
010
Critical · v3.1 (NVD)
EPSS score
1.23%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 08-08-2021
    PublishedVulnerability first disclosed.
  2. 04-08-2024
    Last modifiedVulnerability information updated.

Description

An issue was discovered in the libp2p-deflate crate before 0.27.1 for Rust. An uninitialized buffer is passed to AsyncRead::poll_read(), which is a user-provided trait function.

CVSS metrics

3 scores · 2 sources · 2 versions

EPSS trend

Probability

1.23%

Chance of exploitation in the next 30 days

Percentile

69%

Versus all other CVEs

30-day change

0.00 pp

From 1.23% on 20-09-2026

20-09-202620-10-2026
EPSS score
1.23%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Crates.Io1 product
  • libp2p-deflate< 0.27.1 | ≥ 0.0.0-0, < 0.27.1
Libp2p1 product

2 vendors · 2 products

References

6 links