A use after free vulnerability exists in the ALSA PCM package in the Linux Kernel. SNDRV_CTL_IOCTL_ELEM_{READ|WRITE}32 is missing locks that can be used in a use-after-free that can result in a priviledge escalation to gain ring0 access from the system user. We recommend upgrading past commit 56b88b50565cd8b946a2d00b0c83927b7ebb055e
| Version | Score | Severity | Vector String |
|---|---|---|---|
| 3.1 | 7.9 | High | CVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:C/C:L/I:H/A:H |
| Product | Vendor | Version |
|---|---|---|
| Linux Kernel | Linux | 1.0 |
| Linux Kernel | Linux | >= 4.0.0-RC1, < 4.16.17 |