CVE-2018-14619

HIGH
7.8
CVSS Score
Published: August 30, 2018 at 12:00 PM UTC
Updated: June 17, 2026 at 01:41 AM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
HIGH7.8
Exploit prediction
EPSS 0.4%

Description

A flaw was found in the crypto subsystem of the Linux kernel before version kernel-4.15-rc4. The "null skcipher" was being dropped when each af_alg_ctx was freed instead of when the aead_tfm was freed. This can cause the null skcipher to be freed while it is still in use leading to a local user being able to crash the system or possibly escalate privileges.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

4.14 ≤ v < 4.14.84.15 rc14.15 rc24.15 rc34.15-rc4
Affected range stops below 4.14.8, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

References (5)

CVSS

Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-416CWE-20

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