Race Condition Affecting firefox package, versions <93.0-1


Severity

Recommended
0.0
critical
0
10

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Threat Intelligence

EPSS
0.89% (84th percentile)

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  • Snyk IDSNYK-DEBIANUNSTABLE-FIREFOX-1728404
  • published28 Aug 2021
  • disclosed2 Aug 2021

Introduced: 2 Aug 2021

CVE-2021-32810  (opens in a new tab)
CWE-362  (opens in a new tab)

How to fix?

Upgrade Debian:unstable firefox to version 93.0-1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream firefox package and not the firefox package as distributed by Debian. See How to fix? for Debian:unstable relevant fixed versions and status.

crossbeam-deque is a package of work-stealing deques for building task schedulers when programming in Rust. In versions prior to 0.7.4 and 0.8.0, the result of the race condition is that one or more tasks in the worker queue can be popped twice instead of other tasks that are forgotten and never popped. If tasks are allocated on the heap, this can cause double free and a memory leak. If not, this still can cause a logical bug. Crates using Stealer::steal, Stealer::steal_batch, or Stealer::steal_batch_and_pop are affected by this issue. This has been fixed in crossbeam-deque 0.8.1 and 0.7.4.

References

CVSS Scores

version 3.1