Updated: 2025-08-20 00:01:11.242376
Description:
A use-after-free vulnerability in the Linux kernel's af_unix component can be exploited to achieve local privilege escalation. The unix_stream_sendpage() function tries to add data to the last skb in the peer's recv queue without locking the queue. Thus there is a race where unix_stream_sendpage() could access an skb locklessly that is being released by garbage collection, resulting in use-after-free. We recommend upgrading past commit 790c2f9d15b594350ae9bca7b236f2b1859de02c.
| Links | NIST | CIRCL | RHEL | Ubuntu |
| Severity | Score | |
|---|---|---|
| CVSS Version 2.x | 0.0 | |
| CVSS Version 3.x | HIGH | 7.0 |
| OS name | Project name | Version | Score | Severity | Status | Errata | Last updated | Statement |
|---|---|---|---|---|---|---|---|---|
| AlmaLinux 9.2 ESU | kernel | 5.14.0 | 7.0 | HIGH | Released | CLSA-2025:1743193221 | 2024-05-06 14:32:08 | |
| CentOS 6 ELS | kernel | 2.6.32 | 7.0 | HIGH | Not Vulnerable | 2023-09-29 05:08:32 | ||
| CentOS 7 ELS | kernel | 3.10.0 | 7.0 | HIGH | Already Fixed | 2024-07-01 10:20:52 | ||
| CentOS 8.4 ELS | kernel | 4.18.0 | 7.0 | HIGH | Released | CLSA-2024:1722977546 | 2024-08-06 17:46:25 | |
| CentOS 8.5 ELS | kernel | 4.18.0 | 7.0 | HIGH | Released | CLSA-2024:1722977984 | 2024-08-06 17:46:25 | |
| CloudLinux 6 ELS | kernel | 2.6.32 | 7.0 | HIGH | Not Vulnerable | 2023-09-29 05:08:32 | ||
| Oracle Linux 6 ELS | kernel | 2.6.32 | 7.0 | HIGH | Not Vulnerable | 2023-09-29 05:08:31 | ||
| Ubuntu 16.04 ELS | linux-hwe | 4.15.0 | 7.0 | HIGH | Released | CLSA-2023:1695144235 | 2023-09-19 14:08:04 | |
| Ubuntu 16.04 ELS | linux | 4.4.0 | 7.0 | HIGH | Released | CLSA-2023:1695046627 | 2023-09-18 11:06:15 | |
| Ubuntu 18.04 ELS | linux | 4.15.0 | 7.0 | HIGH | Released | CLSA-2023:1695041084 | 2023-09-18 09:28:47 |