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Use After Free Affecting linux-4.9 package, versions <4.9.110-3+deb9u5~deb8u1

Severity

 Recommended
0.0
high
0
10

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Threat Intelligence

EPSS
0.06% (32nd percentile)

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  • Snyk IDSNYK-DEBIAN8-LINUX49-263034
  • published29 Jul 2018
  • disclosed29 Jul 2018
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Introduced: 29 Jul 2018

CVE-2018-14734  (opens in a new tab)
CWE-416  (opens in a new tab)

How to fix?

Upgrade Debian:8 linux-4.9 to version 4.9.110-3+deb9u5~deb8u1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream linux-4.9 package and not the linux-4.9 package as distributed by Debian. See How to fix? for Debian:8 relevant fixed versions and status.

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).