CVE-2017-11176

Summary

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 Software

Weaknesses

• n/a

ADP Enrichment

CVE Program Container

Additional References

• http://www.debian.org/security/2017/dsa-3927
• https://access.redhat.com/errata/RHSA-2018:0169
• https://access.redhat.com/errata/RHSA-2017:2918
• https://access.redhat.com/errata/RHSA-2017:2931
• https://help.ecostruxureit.com/display/public/UADCE725/Security+fixes+in+StruxureWare+Data+Center+Expert+v7.6.0
• http://www.securityfocus.com/bid/99919
• https://github.com/torvalds/linux/commit/f991af3daabaecff34684fd51fac80319d1baad1
• http://www.debian.org/security/2017/dsa-3945
• https://www.exploit-db.com/exploits/45553/
• http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=f991af3daabaecff34684fd51fac80319d1baad1
• https://access.redhat.com/errata/RHSA-2018:3822
• https://access.redhat.com/errata/RHSA-2017:2930

References

• http://www.debian.org/security/2017/dsa-3927
• https://access.redhat.com/errata/RHSA-2018:0169
• https://access.redhat.com/errata/RHSA-2017:2918
• https://access.redhat.com/errata/RHSA-2017:2931
• https://help.ecostruxureit.com/display/public/UADCE725/Security+fixes+in+StruxureWare+Data+Center+Expert+v7.6.0
• http://www.securityfocus.com/bid/99919
• https://github.com/torvalds/linux/commit/f991af3daabaecff34684fd51fac80319d1baad1
• http://www.debian.org/security/2017/dsa-3945
• https://www.exploit-db.com/exploits/45553/
• http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=f991af3daabaecff34684fd51fac80319d1baad1
• https://access.redhat.com/errata/RHSA-2018:3822
• https://access.redhat.com/errata/RHSA-2017:2930

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