CVE-2021-32810

rust-crossbeam-deque: race condition may lead to double free

Published 2 Aug 2021Modified 17 Jun 2026CWE 362

In the Trivy database since at least 24 Oct 2026, 07:11 UTCWhen it arrived before that build is not recorded.

Severity by source

NVD9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

GHSA9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Red Hat9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Trivy's own label is CRITICAL. Rated critical by NVD, GHSA. Rated lower by Amazon (high), Oracle (high), Rocky Linux (high), Red Hat (medium), Ubuntu (medium).

Description

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.

Affected packages and fixed versions

Source	Package	Fixed in
cargo::GitHub Security Advisory Rust	crossbeam-deque	0.7.4, 0.8.1
alpine 3.15	firefox, firefox-esr	93.0-r0 and 1 more
alpine 3.16	firefox, firefox-esr, thunderbird	93.0-r0 and 2 more
alpine 3.17	firefox, firefox-esr, thunderbird	93.0-r0 and 2 more
alpine 3.18	firefox, firefox-esr, thunderbird	93.0-r0 and 2 more
alpine 3.19	firefox, firefox-esr, thunderbird	93.0-r0 and 2 more
alpine 3.20	firefox, firefox-esr, thunderbird	93.0-r0 and 2 more
alpine 3.21	firefox, firefox-esr, librewolf and 1 more	93.0-r0 and 2 more
alpine 3.22	firefox, firefox-esr, librewolf and 1 more	93.0-r0 and 2 more
alpine 3.23	firefox, firefox-esr, librewolf and 1 more	93.0-r0 and 2 more
alpine 3.24	librewolf	93.0-r0
alpine edge	librewolf	93.0-r0

Show all 62 entries from 37 sources

Source	Package	Fixed in
cargo::GitHub Security Advisory Rust	crossbeam-deque	0.7.4, 0.8.1
alpine 3.15	firefox	93.0-r0
alpine 3.15	firefox-esr	91.2.0-r0
alpine 3.16	firefox	93.0-r0
alpine 3.16	firefox-esr	91.2.0-r0
alpine 3.16	thunderbird	91.3.2-r0
alpine 3.17	firefox	93.0-r0
alpine 3.17	firefox-esr	91.2.0-r0
alpine 3.17	thunderbird	91.3.2-r0
alpine 3.18	firefox	93.0-r0
alpine 3.18	firefox-esr	91.2.0-r0
alpine 3.18	thunderbird	91.3.2-r0
alpine 3.19	firefox	93.0-r0
alpine 3.19	firefox-esr	91.2.0-r0
alpine 3.19	thunderbird	91.3.2-r0
alpine 3.20	firefox	93.0-r0
alpine 3.20	firefox-esr	91.2.0-r0
alpine 3.20	thunderbird	91.3.2-r0
alpine 3.21	firefox	93.0-r0
alpine 3.21	firefox-esr	91.2.0-r0
alpine 3.21	librewolf	93.0-r0
alpine 3.21	thunderbird	91.3.2-r0
alpine 3.22	firefox	93.0-r0
alpine 3.22	firefox-esr	91.2.0-r0
alpine 3.22	librewolf	93.0-r0
alpine 3.22	thunderbird	91.3.2-r0
alpine 3.23	firefox	93.0-r0
alpine 3.23	firefox-esr	91.2.0-r0
alpine 3.23	librewolf	93.0-r0
alpine 3.23	thunderbird	91.3.2-r0
alpine 3.24	librewolf	93.0-r0
alpine edge	librewolf	93.0-r0
amazon linux 2	thunderbird	91.6.0-1.amzn2.0.1
amazon linux 2	thunderbird-debuginfo	91.6.0-1.amzn2.0.1
debian 10	rust-crossbeam-deque	no fix listed
debian 11	rust-crossbeam-deque	no fix listed
debian 12	rust-crossbeam-deque	0.7.4-1
debian 13	rust-crossbeam-deque	0.7.4-1
debian 14	rust-crossbeam-deque	0.7.4-1
echo	rust-crossbeam-deque	0.7.4-1
Oracle Linux 7	firefox	91.2.0-4.0.1.el7_9
Oracle Linux 7	thunderbird	91.2.0-1.0.1.el7_9
Oracle Linux 8	firefox	91.2.0-4.0.1.el8_4
Oracle Linux 8	thunderbird	91.2.0-1.0.1.el8_4
Red Hat	firefox	no fix listed
Red Hat	thunderbird	no fix listed
rocky 8	firefox	91.2.0-4.el8_4
rocky 8	thunderbird	91.2.0-1.el8_4
ubuntu 18.04	firefox	93.0+build1-0ubuntu0.18.04.1
ubuntu 20.04	firefox	93.0+build1-0ubuntu0.20.04.1
ubuntu 21.04	firefox	93.0+build1-0ubuntu0.21.04.1
ubuntu 21.10	firefox	93.0+build1-0ubuntu2
ubuntu 22.04	firefox	93.0+build1-0ubuntu2
ubuntu 22.10	firefox	93.0+build1-0ubuntu2
ubuntu 23.04	firefox	93.0+build1-0ubuntu2
ubuntu 23.10	firefox	93.0+build1-0ubuntu2
ubuntu 24.04	firefox	93.0+build1-0ubuntu2
ubuntu 24.10	firefox	93.0+build1-0ubuntu2
ubuntu 25.04	firefox	93.0+build1-0ubuntu2
ubuntu 25.10	firefox	93.0+build1-0ubuntu2
ubuntu 26.04	firefox	93.0+build1-0ubuntu2
ubuntu 26.10	firefox	93.0+build1-0ubuntu2

References

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