VulnerabilityModified
CVE-2017-11176
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.
HIGH 7.8EPSS 3.63%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (3.63%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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.
- CVSS 3.1
- 7.8 HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 3.63% probability · 89th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-416
- Affected
- linux/linux kernel · debian/debian linux
- Source
- cve@mitre.org
References
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=f991af3daabaecff34684fd51fac80319d1baad1Issue Tracking, Patch, Third Party Advisory
- http://www.debian.org/security/2017/dsa-3927Third Party Advisory
- http://www.debian.org/security/2017/dsa-3945Third Party Advisory
- http://www.securityfocus.com/bid/99919Third Party Advisory, VDB Entry
- https://access.redhat.com/errata/RHSA-2017:2918Third Party Advisory
- https://access.redhat.com/errata/RHSA-2017:2930Third Party Advisory
- https://access.redhat.com/errata/RHSA-2017:2931Third Party Advisory
- https://access.redhat.com/errata/RHSA-2018:0169Third Party Advisory
- https://access.redhat.com/errata/RHSA-2018:3822Third Party Advisory
- https://github.com/torvalds/linux/commit/f991af3daabaecff34684fd51fac80319d1baad1Issue Tracking, Patch, Third Party Advisory
- https://help.ecostruxureit.com/display/public/UADCE725/Security+fixes+in+StruxureWare+Data+Center+Expert+v7.6.0Third Party Advisory
- https://www.exploit-db.com/exploits/45553/Third Party Advisory, VDB Entry
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=f991af3daabaecff34684fd51fac80319d1baad1Issue Tracking, Patch, Third Party Advisory
- http://www.debian.org/security/2017/dsa-3927Third Party Advisory
- http://www.debian.org/security/2017/dsa-3945Third Party Advisory
- http://www.securityfocus.com/bid/99919Third Party Advisory, VDB Entry
- https://access.redhat.com/errata/RHSA-2017:2918Third Party Advisory
- https://access.redhat.com/errata/RHSA-2017:2930Third Party Advisory
- https://access.redhat.com/errata/RHSA-2017:2931Third Party Advisory
- https://access.redhat.com/errata/RHSA-2018:0169Third Party Advisory
- https://access.redhat.com/errata/RHSA-2018:3822Third Party Advisory
- https://github.com/torvalds/linux/commit/f991af3daabaecff34684fd51fac80319d1baad1Issue Tracking, Patch, Third Party Advisory
- https://help.ecostruxureit.com/display/public/UADCE725/Security+fixes+in+StruxureWare+Data+Center+Expert+v7.6.0Third Party Advisory
- https://www.exploit-db.com/exploits/45553/Third Party Advisory, VDB Entry
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.