Use After Free Affecting futures-task package, versions <0.3.6


Severity

Recommended
0.0
high
0
10

CVSS assessment made by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
0.05% (22nd percentile)

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  • Snyk IDSNYK-RUST-FUTURESTASK-1252753
  • published21 Apr 2021
  • disclosed4 Sept 2020
  • creditUnknown

Introduced: 4 Sep 2020

CVE-2020-35906  (opens in a new tab)
CWE-416  (opens in a new tab)

How to fix?

Upgrade futures-task to version 0.3.6 or higher.

Overview

Affected versions of this package are vulnerable to Use After Free. Affected versions of the crate did not properly implement a 'static lifetime bound on the waker function. This resulted in a use-after-free if Waker::wake() is called after original data had been dropped. The flaw was corrected by adding 'static lifetime bound to the data waker takes.

CVSS Scores

version 3.1