CVE-2021-32810
Published: 2 August 2021
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.
Priority
Status
| Package | Release | Status |
|---|---|---|
|
firefox Launchpad, Ubuntu, Debian |
trusty |
Does not exist
|
| impish |
Released
(93.0+build1-0ubuntu2)
|
|
| bionic |
Released
(93.0+build1-0ubuntu0.18.04.1)
|
|
| focal |
Released
(93.0+build1-0ubuntu0.20.04.1)
|
|
| hirsute |
Released
(93.0+build1-0ubuntu0.21.04.1)
|
|
| upstream |
Needs triage
|
|
| jammy |
Released
(93.0+build1-0ubuntu2)
|
|
| kinetic |
Released
(93.0+build1-0ubuntu2)
|
|
| lunar |
Released
(93.0+build1-0ubuntu2)
|
|
| xenial |
Ignored
(end of standard support)
|
|
|
rust-crossbeam-deque Launchpad, Ubuntu, Debian |
lunar |
Not vulnerable
(0.8.1-1)
|
| trusty |
Does not exist
|
|
| xenial |
Ignored
(end of standard support)
|
|
| bionic |
Does not exist
|
|
| focal |
Needs triage
|
|
| upstream |
Released
(0.7.4-1)
|
|
| hirsute |
Ignored
(end of life)
|
|
| kinetic |
Ignored
(end of life, was needs-triage)
|
|
| jammy |
Needs triage
|
|
| impish |
Ignored
(end of life)
|
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 9.8 |
| 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
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-32810
- https://rustsec.org/advisories/RUSTSEC-2021-0093.html
- https://www.mozilla.org/en-US/security/advisories/mfsa2021-43/#CVE-2021-32810
- https://ubuntu.com/security/notices/USN-5132-1
- https://ubuntu.com/security/notices/USN-5107-1
- NVD
- Launchpad
- Debian