CVE-2017-11176

Description

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.

References

https://www.exploit-db.com/exploits/45553/

https://help.ecostruxureit.com/display/public/UADCE725/Security+fixes+in+StruxureWare+Data+Center+Expert+v7.6.0

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

https://access.redhat.com/errata/RHSA-2018:3822

https://access.redhat.com/errata/RHSA-2018:0169

https://access.redhat.com/errata/RHSA-2017:2931

https://access.redhat.com/errata/RHSA-2017:2930

https://access.redhat.com/errata/RHSA-2017:2918

http://www.securityfocus.com/bid/99919

http://www.debian.org/security/2017/dsa-3945

http://www.debian.org/security/2017/dsa-3927

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

Details

Source: Mitre, NVD

Risk Information

CVSS v2

CVSS v3