UBUNTU-CVE-2017-11176

Details

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.

Affected Packages(22 packages)

linux

Ubuntu 14.04 LTS

Fixed in:

3.13.0-135.184

linux-lts-xenial

Ubuntu 14.04 LTS

Fixed in:

4.4.0-93.116~14.04.1

linux

Ubuntu 16.04 LTS

Fixed in:

4.4.0-93.116

linux-aws

Ubuntu 16.04 LTS

Fixed in:

4.4.0-1032.41

linux-gcp

Ubuntu 16.04 LTS

Fixed in:

4.10.0-1008.8

linux-gke

Ubuntu 16.04 LTS

Fixed in:

4.4.0-1028.28

linux-hwe

Ubuntu 16.04 LTS

Fixed in:

4.13.0-32.35~16.04.1

linux-raspi2

Ubuntu 16.04 LTS

Fixed in:

4.4.0-1071.79

linux-snapdragon

Ubuntu 16.04 LTS

Fixed in:

4.4.0-1073.78

linux-azure-fde

Ubuntu 20.04 LTS

Affected versions:

5.4.0-1063.66+cvm2.25.4.0-1063.66+cvm3.25.4.0-1064.67+cvm1.15.4.0-1065.68+cvm2.15.4.0-1067.70+cvm1.15.4.0-1068.71+cvm1.15.4.0-1069.72+cvm1.15.4.0-1070.73+cvm1.15.4.0-1072.75+cvm1.15.4.0-1073.76+cvm1.1+16 more

References

REPORT

http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=f991af3daabaecff34684fd51fac80319d1baad1

REPORT

https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=f991af3daabaecff34684fd51fac80319d1baad1

REPORT

https://github.com/torvalds/linux/commit/f991af3daabaecff34684fd51fac80319d1baad1

REPORT

https://ubuntu.com/security/CVE-2017-11176

ADVISORY

https://ubuntu.com/security/notices/USN-3405-1

ADVISORY