CVE-2015-7550
Last modified
CVE-2015-7550 is a vulnerability of currently unknown severity. 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.. EPSS estimates a 0.41% chance of exploitation in the next 30 days.
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.
Metrics
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | <= 4.3.3 |
References
- http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.3.4Vendor Advisory
- http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.3.4Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
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