CVE-2020-35905: rust-lang future-utils Race Condition
CVSS: 4.7v3.1MediumModified
AliasesGHSA-rh4w-94hh-9943RUSTSEC-2020-0059
Published 31-12-2020Last modified 04-08-2024
Vulnerability summary
CVE-2020-35905 is a medium (CVSS 4.7) Race Condition vulnerability in rust-lang future-utils. EPSS estimates a 0.26% chance of exploitation in the next 30 days, higher than 17.2% of scored vulnerabilities. 1 public exploit is recorded.
CVSS score
4.7/10
010
Medium · v3.1 (NVD)EPSS score
0.26%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1reference
Timeline
- 31-12-2020PublishedVulnerability first disclosed.
- 04-08-2024Last modifiedVulnerability information updated.
Description
An issue was discovered in the futures-util crate before 0.3.7 for Rust. MutexGuard::map can cause a data race for certain closure situations (in safe code).
CVSS metrics
3 scores · 2 sources · 2 versionsMedium 4.7Preferred score · NVD (NIST)
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:HSourcesAll 2 agree
- OSV · Crates.ioEcosystem advisory · calculated4.7MediumCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
Low 1.9Preferred score · NVD (NIST)
AV:L/AC:M/Au:N/C:N/I:N/A:PSourcesSingle source
EPSS trend
Probability
0.26%
Chance of exploitation in the next 30 days
Percentile
17%
Versus all other CVEs
30-day change
0.00 pp
From 0.26% on 20-09-2026
20-09-202620-10-2026
EPSS score0.26%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
1 foundExploit Reference (rustsec.org)
Maturity: unknown
Weaknesses
CWE · root causeAffected systems
Crates.Io1 product
- futures-util≥ 0.3.2, < 0.3.7
Rust-lang1 product
- future-utils< 0.3.7
2 vendors · 2 products
References
5 links- rustsec.org/advisories/RUSTSEC-2020-0059.htmlX Refsource MISCWEBAdvisoryExploitPatchThird Party Advisory
