---
cve: "CVE-2018-14734"
severity: "LOW"
cvss: 3.1
epss: "57%"
vendor: "n/a"
kev: false
exploited: false
published: "2018-07-29 23:29:00"
tags: [cve, security, low]
source: tsecurity.de CVE-Dossier
exported: "2026-09-08T16:04:39+02:00"
---

# CVE-2018-14734

> 3.1 LOW · 🧪 PoC

## Beschreibung

drivers/infiniband/core/ucma.c in the Linux kernel through 4.17.11 allows ucma_leave_multicast to access a certain data structure after a cleanup step in ucma_process_join, which allows attackers to cause a denial of service (use-after-free).

## Referenzen

- <http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=cb2595c1393b4a5211534e6f0a0fbad369e21ad8>
- <https://usn.ubuntu.com/3797-2/>
- <https://usn.ubuntu.com/3847-1/>
- <https://usn.ubuntu.com/3797-1/>
- <https://lists.debian.org/debian-lts-announce/2018/10/msg00003.html>
- <https://usn.ubuntu.com/3847-2/>
- <https://usn.ubuntu.com/3849-1/>
- <https://usn.ubuntu.com/3849-2/>
- <https://www.debian.org/security/2018/dsa-4308>
- <https://github.com/torvalds/linux/commit/cb2595c1393b4a5211534e6f0a0fbad369e21ad8>
- <https://usn.ubuntu.com/3847-3/>
- <https://access.redhat.com/errata/RHSA-2019:0831>
- <https://access.redhat.com/errata/RHSA-2019:2043>
- <https://access.redhat.com/errata/RHSA-2019:2029>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2018-14734) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_