CVE-2021-32810

Publication date 2 August 2021

Last updated 24 July 2024

Ubuntu priority

Cvss 3 Severity Score

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.

Status

Show unmaintained releases

Package	Ubuntu Release	Status
firefox	24.04 LTS noble	Fixed 93.0+build1-0ubuntu2
	23.10 mantic	Fixed 93.0+build1-0ubuntu2
	23.04 lunar	Fixed 93.0+build1-0ubuntu2
	22.10 kinetic	Fixed 93.0+build1-0ubuntu2
	22.04 LTS jammy	Fixed 93.0+build1-0ubuntu2
	21.10 impish	Fixed 93.0+build1-0ubuntu2
	21.04 hirsute	Fixed 93.0+build1-0ubuntu0.21.04.1
	20.04 LTS focal	Fixed 93.0+build1-0ubuntu0.20.04.1
	18.04 LTS bionic	Fixed 93.0+build1-0ubuntu0.18.04.1
	16.04 LTS xenial	Ignored
	14.04 LTS trusty	Not in release
rust-crossbeam-deque	24.04 LTS noble	Not affected
	23.10 mantic	Not affected
	23.04 lunar	Not affected
	22.10 kinetic	Ignored
	22.04 LTS jammy	Needs evaluation
	21.10 impish	Ignored
	21.04 hirsute	Ignored
	20.04 LTS focal	Needs evaluation
	18.04 LTS bionic	Not in release
	16.04 LTS xenial	Ignored
	14.04 LTS trusty	Not in release

Severity score breakdown

Parameter	Value
Base score	9.8 · Critical
Attack vector	Network
Attack complexity	Low
Privileges required	None
User interaction	None
Scope	Unchanged
Confidentiality	High
Integrity impact	High
Availability impact	High
Vector	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVE-2021-32810

Cvss 3 Severity Score

Status

Severity score breakdown

References

Related Ubuntu Security Notices (USN)

Other references