CVE-2015-7550 is a race condition vulnerability in the Linux kernel's keyctl_read_key function (versions prior to 4.3.4) that can lead to a denial of service. A local attacker can exploit this flaw by leveraging a race between keyctl_revoke and keyctl_read calls, causing a NULL pointer dereference and system crash. Rated Medium (CVSS 5.5), the attack requires local access and low complexity, primarily impacting system availability. There is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this vulnerability.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
<= 4.3.3CPE matchmatch criteria | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.0
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
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