CVE-2021-32810
Publication date 2 August 2021
Last updated 24 July 2024
Ubuntu priority
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
| Package | Ubuntu Release | Status |
|---|---|---|
| firefox | 24.10 oracular |
Fixed 93.0+build1-0ubuntu2
|
| 24.04 LTS noble |
Fixed 93.0+build1-0ubuntu2
|
|
| 22.04 LTS jammy |
Fixed 93.0+build1-0ubuntu2
|
|
| 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 end of standard support | |
| 14.04 LTS trusty | Not in release | |
| rust-crossbeam-deque | 24.10 oracular |
Not affected
|
| 24.04 LTS noble |
Not affected
|
|
| 22.04 LTS jammy |
Needs evaluation
|
|
| 20.04 LTS focal |
Needs evaluation
|
|
| 18.04 LTS bionic | Not in release | |
| 16.04 LTS xenial | Ignored end of standard support | |
| 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 |
References
Related Ubuntu Security Notices (USN)
- USN-5107-1
- Firefox vulnerabilities
- 7 October 2021
- USN-5132-1
- Thunderbird vulnerabilities
- 3 November 2021