CVE-2018-14734 — Use After Free in Linux

CWE-416 — Use After Free20 documents7 sources
Severity
7.8HIGHNVD
OSV5.9
EPSS
0.0%
top 91.87%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
4
Linux KernelDebian LinuxCanonical Ubuntu Linux+1 more
Timeline
PublishedJul 29
Latest updateMay 14

Description

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).

CVSS vector

CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HExploitability: 1.8 | Impact: 5.9

Affected Packages4 packages

▶Debianlinux/linux_kernel< 4.17.14-1+3
▶Ubuntulinux/linux_kernel< 3.13.0-164.214+2
▶NVDlinux/linux_kernel4.17.11
▶debiandebian/linux< linux 4.17.14-1 (bookworm)

Also affects: Debian Linux 8.0, 9.0, Ubuntu Linux 12.04, 14.04, 16.04, 18.04

Patches

Patch: git.kernel.org ↗Patch: github.com ↗Patch: git.kernel.org ↗

🔴Vulnerability Details

8
GHSA
GHSA-mw8q-cf75-7f35: drivers/infiniband/core/ucma↗2022-05-14
▶
OSV
linux vulnerabilities↗2018-12-20
▶
OSV
linux-azure vulnerabilities↗2018-12-20
▶
OSV
linux-hwe, linux-aws-hwe, linux-azure, linux-gcp vulnerabilities↗2018-12-20
▶
OSV
linux, linux-aws, linux-azure, linux-gcp, linux-kvm, linux-oem, linux-raspi2 vulnerabilities↗2018-12-20
▶

📋Vendor Advisories

9
Ubuntu
Linux kernel (HWE) vulnerabilities↗2018-12-20
▶
Ubuntu
Linux kernel vulnerabilities↗2018-12-20
▶
Ubuntu
Linux kernel vulnerabilities↗2018-12-20
▶
Ubuntu
Linux kernel (Trusty HWE) vulnerabilities↗2018-12-20
▶
Ubuntu
Linux kernel (Azure) vulnerabilities↗2018-12-20
▶

💬Community

2
Bugzilla
CVE-2018-14734 kernel: use-after-free in ucma_leave_multicast in drivers/infiniband/core/ucma.c [fedora-all]↗2018-08-01
▶
Bugzilla
CVE-2018-14734 kernel: use-after-free in ucma_leave_multicast in drivers/infiniband/core/ucma.c↗2018-08-01
▶