# CVE-2022-23639: firefox: crossbeam-utils provides atomics, synchronization primitives, scopedthreads, and other utilities for concurrent progr... CVE-2022-23639 is fixed in 11 products on 1 platform, first by firefox 1:1snap1-0ubuntu1, released February 15, 2022. It is not reported as exploited. Patch Radar priority: High. - Web page: https://patchblox.com/security/cve/CVE-2022-23639 - Priority: High - CVSS: 8.1 (Medium) - EPSS: 0.0123 - CISA KEV: not listed - Exploited (vendor report): no - Publicly disclosed: no - Published: Feb 15, 2022 ## Description crossbeam-utils provides atomics, synchronization primitives, scopedthreads, and other utilities for concurrent programming in Rust.crossbeam-utils prior to version 0.8.7 incorrectly assumed that thealignment of `{i,u}64` was always the same as `Atomic{I,U}64`. However, thealignment of `{i,u}64` on a 32-bit target can be smaller than`Atomic{I,U}64`. This can cause unaligned memory accesses and data race.Crates using `fetch_*` methods with `AtomicCell<{i,u}64>` are affected bythis issue. 32-bit targets without `Atomic{I,U}64` and 64-bit targets arenot affected by this issue. This has been fixed in crossbeam-utils 0.8.7.There are currently no known workarounds. ## Where it's fixed | Platform | Product | Fixed in | Fix | Released | |---|---|---|---|---| | Linux | firefox Ubuntu 22.04.1 LTS (jammy) | 1:1snap1-0ubuntu1 | [firefox 1:1snap1-0ubuntu1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-firefox-1-1snap1-0ubuntu1.md) | Apr 6, 2022 | | Linux | firefox Ubuntu 24.10 (oracular) | 1:1snap1-0ubuntu1 | [firefox 1:1snap1-0ubuntu1](https://patchblox.com/security/data/fix/linux/ubuntu-oracular-firefox-1-1snap1-0ubuntu1.md) | Feb 15, 2022 | | Linux | firefox Ubuntu 25.04 (plucky) | 1:1snap1-0ubuntu1 | [firefox 1:1snap1-0ubuntu1](https://patchblox.com/security/data/fix/linux/ubuntu-plucky-firefox-1-1snap1-0ubuntu1.md) | Feb 15, 2022 | | Linux | libstd-rust-1.58 Ubuntu 22.04.1 LTS (jammy) | 1.58.1+dfsg1~ubuntu1-0ubuntu1 | [libstd-rust-1.58 1.58.1+dfsg1~ubuntu1-0ubuntu1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-libstd-rust-1.58-1.58.1-dfsg1-ubuntu1-0ubuntu1.md) | Feb 15, 2022 | | Linux | libstd-rust-1.59 Ubuntu 20.04 LTS (focal) | 1.59.0+dfsg1~ubuntu1~llvm-1~ubuntu1~20.04.2 | [libstd-rust-1.59 1.59.0+dfsg1~ubuntu1~llvm-1~ubuntu1~20.04.2](https://patchblox.com/security/data/fix/linux/ubuntu-focal-libstd-rust-1.59-1.59.0-dfsg1-ubuntu1-llvm-1-ubuntu1-20.04.2.md) | Feb 15, 2022 | | Linux | rust-all Ubuntu 20.04 LTS (focal) | 1.59.0+dfsg1~ubuntu1~llvm-1~ubuntu1~20.04.2 | [rust-all 1.59.0+dfsg1~ubuntu1~llvm-1~ubuntu1~20.04.2](https://patchblox.com/security/data/fix/linux/ubuntu-focal-rust-all-1.59.0-dfsg1-ubuntu1-llvm-1-ubuntu1-20.04.2.md) | Feb 15, 2022 | | Linux | rust-all Ubuntu 22.04.1 LTS (jammy) | 1.58.1+dfsg1~ubuntu1-0ubuntu1 | [rust-all 1.58.1+dfsg1~ubuntu1-0ubuntu1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-rust-all-1.58.1-dfsg1-ubuntu1-0ubuntu1.md) | Feb 15, 2022 | | Linux | rust-clippy Ubuntu 20.04 LTS (focal) | 1.59.0+dfsg1~ubuntu1~llvm-1~ubuntu1~20.04.2 | [rust-clippy 1.59.0+dfsg1~ubuntu1~llvm-1~ubuntu1~20.04.2](https://patchblox.com/security/data/fix/linux/ubuntu-focal-rust-clippy-1.59.0-dfsg1-ubuntu1-llvm-1-ubuntu1-20.04.2.md) | Feb 15, 2022 | | Linux | rust-clippy Ubuntu 22.04.1 LTS (jammy) | 1.58.1+dfsg1~ubuntu1-0ubuntu1 | [rust-clippy 1.58.1+dfsg1~ubuntu1-0ubuntu1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-rust-clippy-1.58.1-dfsg1-ubuntu1-0ubuntu1.md) | Feb 15, 2022 | | Linux | rust-crossbeam-utils Debian 12.15 (bookworm) | 0.8.8-1 | [DEBIAN-CVE-2022-23639](https://patchblox.com/security/data/fix/linux/debian-cve-2022-23639.md) | Feb 15, 2022 | | Linux | rust-crossbeam-utils Debian 13.5 (trixie) | 0.8.8-1 | [DEBIAN-CVE-2022-23639](https://patchblox.com/security/data/fix/linux/debian-cve-2022-23639.md) | Feb 15, 2022 | | Linux | rust-crossbeam-utils Debian 14 | 0.8.8-1 | [DEBIAN-CVE-2022-23639](https://patchblox.com/security/data/fix/linux/debian-cve-2022-23639.md) | Feb 15, 2022 | | Linux | rust-gdb Ubuntu 20.04 LTS (focal) | 1.59.0+dfsg1~ubuntu1~llvm-1~ubuntu1~20.04.2 | [rust-gdb 1.59.0+dfsg1~ubuntu1~llvm-1~ubuntu1~20.04.2](https://patchblox.com/security/data/fix/linux/ubuntu-focal-rust-gdb-1.59.0-dfsg1-ubuntu1-llvm-1-ubuntu1-20.04.2.md) | Feb 15, 2022 | | Linux | rust-gdb Ubuntu 22.04.1 LTS (jammy) | 1.58.1+dfsg1~ubuntu1-0ubuntu1 | [rust-gdb 1.58.1+dfsg1~ubuntu1-0ubuntu1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-rust-gdb-1.58.1-dfsg1-ubuntu1-0ubuntu1.md) | Feb 15, 2022 | | Linux | rust-lldb Ubuntu 20.04 LTS (focal) | 1.59.0+dfsg1~ubuntu1~llvm-1~ubuntu1~20.04.2 | [rust-lldb 1.59.0+dfsg1~ubuntu1~llvm-1~ubuntu1~20.04.2](https://patchblox.com/security/data/fix/linux/ubuntu-focal-rust-lldb-1.59.0-dfsg1-ubuntu1-llvm-1-ubuntu1-20.04.2.md) | Feb 15, 2022 | | Linux | rust-lldb Ubuntu 22.04.1 LTS (jammy) | 1.58.1+dfsg1~ubuntu1-0ubuntu1 | [rust-lldb 1.58.1+dfsg1~ubuntu1-0ubuntu1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-rust-lldb-1.58.1-dfsg1-ubuntu1-0ubuntu1.md) | Feb 15, 2022 | | Linux | rust-src Ubuntu 20.04 LTS (focal) | 1.59.0+dfsg1~ubuntu1~llvm-1~ubuntu1~20.04.2 | [rust-src 1.59.0+dfsg1~ubuntu1~llvm-1~ubuntu1~20.04.2](https://patchblox.com/security/data/fix/linux/ubuntu-focal-rust-src-1.59.0-dfsg1-ubuntu1-llvm-1-ubuntu1-20.04.2.md) | Feb 15, 2022 | | Linux | rust-src Ubuntu 22.04.1 LTS (jammy) | 1.58.1+dfsg1~ubuntu1-0ubuntu1 | [rust-src 1.58.1+dfsg1~ubuntu1-0ubuntu1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-rust-src-1.58.1-dfsg1-ubuntu1-0ubuntu1.md) | Feb 15, 2022 | | Linux | rustc Ubuntu 20.04 LTS (focal) | 1.59.0+dfsg1~ubuntu1~llvm-1~ubuntu1~20.04.2 | [rustc 1.59.0+dfsg1~ubuntu1~llvm-1~ubuntu1~20.04.2](https://patchblox.com/security/data/fix/linux/ubuntu-focal-rustc-1.59.0-dfsg1-ubuntu1-llvm-1-ubuntu1-20.04.2.md) | Feb 15, 2022 | | Linux | rustc Ubuntu 22.04.1 LTS (jammy) | 1.58.1+dfsg1~ubuntu1-0ubuntu1 | [rustc 1.58.1+dfsg1~ubuntu1-0ubuntu1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-rustc-1.58.1-dfsg1-ubuntu1-0ubuntu1.md) | Feb 15, 2022 | | Linux | rustfmt Ubuntu 20.04 LTS (focal) | 1.59.0+dfsg1~ubuntu1~llvm-1~ubuntu1~20.04.2 | [rustfmt 1.59.0+dfsg1~ubuntu1~llvm-1~ubuntu1~20.04.2](https://patchblox.com/security/data/fix/linux/ubuntu-focal-rustfmt-1.59.0-dfsg1-ubuntu1-llvm-1-ubuntu1-20.04.2.md) | Feb 15, 2022 | | Linux | rustfmt Ubuntu 22.04.1 LTS (jammy) | 1.58.1+dfsg1~ubuntu1-0ubuntu1 | [rustfmt 1.58.1+dfsg1~ubuntu1-0ubuntu1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-rustfmt-1.58.1-dfsg1-ubuntu1-0ubuntu1.md) | Feb 15, 2022 | --- Data as of 2026-11-08T06:59:42Z UTC. 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