---
cve: "CVE-2018-14619"
severity: "MEDIUM"
cvss: 6.2
epss: "43%"
vendor: "[UNKNOWN]"
kev: false
exploited: false
published: "2018-08-30 12:29:01"
tags: [cve, security, medium]
source: tsecurity.de CVE-Dossier
exported: "2026-09-10T17:28:52+02:00"
---

# CVE-2018-14619

> 6.2 MEDIUM

## Beschreibung

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.

## CVSS-Vektor

```
CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
```

| Metrik | Wert | Bewertung |
|---|---|---|
| AV Angriffsvektor | Lokal | good |
| AC Komplexität | Gering | bad |
| PR Privilegien | Keine | bad |
| UI Interaktion | Keine | bad |
| S Scope | Unverändert | good |
| C Vertraulichkeit | Keine | good |
| I Integrität | Keine | good |
| A Verfügbarkeit | Hoch | bad |

## Referenzen

- <https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=b32a7dc8aef1882fbf983eb354837488cc9d54dc>
- <https://access.redhat.com/errata/RHSA-2018:2948>
- <https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2018-0013>
- <https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-14619>
- <http://www.securityfocus.com/bid/105200>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2018-14619) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_