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UBUNTU-CVE-2017-11176 High

UBUNTU-CVE-2017-11176

The mq_notify function in the Linux kernel through 4.11.9 does not set the sock pointer to NULL upon entry into the retry logic. During a user-space close of a Netlink socket, it allows attackers to cause a denial of service (use-after-free) or possibly have unspecified other impact.

Exploit probability Not scored
Published July 11, 2017
Required by Not available
Last source change August 17, 2026

02 / AFFECTED SOFTWARE

Affected packages

Ubuntu:14.04:LTS linux

122 explicit affected versions

Ubuntu:14.04:LTS linux-lts-xenial

37 explicit affected versions

Ubuntu:16.04:LTS linux

59 explicit affected versions

Ubuntu:16.04:LTS linux-aws

17 explicit affected versions

Ubuntu:16.04:LTS linux-gcp

3 explicit affected versions

Ubuntu:16.04:LTS linux-gke

15 explicit affected versions

Ubuntu:16.04:LTS linux-hwe

26 explicit affected versions

Ubuntu:16.04:LTS linux-raspi2

35 explicit affected versions

Ubuntu:16.04:LTS linux-snapdragon

32 explicit affected versions

Ubuntu:20.04:LTS linux-azure-fde

26 explicit affected versions

Ubuntu:20.04:LTS linux-gke

51 explicit affected versions

Ubuntu:20.04:LTS linux-raspi2

6 explicit affected versions

Ubuntu:20.04:LTS linux-riscv

12 explicit affected versions

Ubuntu:22.04:LTS linux-intel-iot-realtime

1 explicit affected versions

Ubuntu:22.04:LTS linux-realtime

1 explicit affected versions

Ubuntu:22.04:LTS linux-riscv

23 explicit affected versions

Ubuntu:24.04:LTS linux-azure-6.11

7 explicit affected versions

Ubuntu:24.04:LTS linux-gcp-6.11

7 explicit affected versions

Ubuntu:24.04:LTS linux-hwe-6.11

8 explicit affected versions

Ubuntu:24.04:LTS linux-lowlatency-hwe-6.11

7 explicit affected versions

Ubuntu:24.04:LTS linux-raspi-realtime

1 explicit affected versions

Ubuntu:Pro:20.04:LTS linux-azure-fde-5.15

61 explicit affected versions

03 / CONNECTIONS

Connected vulnerabilities

related USN-3468-1
related USN-3470-2

04 / EVIDENCE

Source records

Open Source Vulnerabilities UBUNTU-CVE-2017-11176

The mq_notify function in the Linux kernel through 4.11.9 does not set the sock pointer to NULL upon entry into the retry logic. During a user-space close of a Netlink socket, it allows attackers to cause a denial of service (use-after-free) or possibly have unspecified other impact.

View original source

05 / REFERENCES

Further evidence