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Race Condition Affecting firefox package, versions <93.0-1

0.0
critical

Snyk CVSS

    Attack Complexity Low
    Confidentiality High
    Integrity High
    Availability High

    Threat Intelligence

    EPSS 0.89% (83rd percentile)
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NVD
9.8 critical
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SUSE
9.8 critical
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Red Hat
9.8 critical

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  • Snyk ID SNYK-DEBIANUNSTABLE-FIREFOX-1728404
  • published 28 Aug 2021
  • disclosed 2 Aug 2021
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Introduced: 2 Aug 2021

CVE-2021-32810 Open this link in a new tab
CWE-362 Open this link 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