CVE-2015-7550
MEDIUM5.5EPSS 0.05%linux-2.6 - security update
Published: 2/8/2016Modified: 4/28/2026
Description
The keyctl_read_key function in security/keys/keyctl.c in the Linux kernel before 4.3.4 does not properly use a semaphore, which allows local users to cause a denial of service (NULL pointer dereference and system crash) or possibly have unspecified other impact via a crafted application that leverages a race condition between keyctl_revoke and keyctl_read calls.
Affected packages (2)
- Debian/linuxfrom 0, < 4.3.3-3
- Debian/linux-2.6from 0, < 2.6.32-48squeeze18
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM5.5 | CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |