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Fencer Vulns
high 8.1

CVE-2020-36439 json

Duplicate Advisory: Data races in ticketed_lock

published 2020-11-17 5 y ago modified 2026-06-17 4 mo ago also GHSA-77m6-x95j-75r5 , GHSA-gq4h-f254-7cw9 , RUSTSEC-2020-0119 , EUVD-2021-1612

cvss
8.1
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.8%
EPSS 0.8% chance of exploitation in 30 days, percentile 55%
public exploits
0
none known

Summary

An issue was discovered in the ticketed_lock crate before 0.3.0 for Rust. There are unconditional implementations of Send for ReadTicket<T> and WriteTicket<T>.

Patch / fix

  • crates.io ticketed_lock 0.3.0
  • ticketed_lock_project ticketed_lock 0.3.0

Exploit prediction

0.77% chance of exploitation in the next 30 days, higher than 55% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.1 8.1 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 6.8 AV:N/AC:M/Au:N/C:P/I:P/A:P
OSV 3.1 8.1 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
GitHub 3.1 8.1 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected packages

ecosystem package affected fixed in
crates.io ticketed_lock
<0.3.0
>=0.0.0-0, <0.3.0
0.3.0

Classification

Weakness
  • CWE-362 Concurrent Execution using Shared Resource with Improper Synchronization
  • CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.