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…
- 7.8HighCVSS base score
- 3.8%Exploitation in 30 daysEPSS · top 9.7% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- 1Public exploitsMetasploit, Nuclei and Exploit-DB
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.
Public exploit
An exploit or proof of concept is public: anyone can try it against an unpatched system. The public collections list an Exploit-DB entry for it. A reference of the record is tagged as an exploit.
Show the exploits2
Exploit-DB1 entry
- Linux Kernel < 4.11.8 - 'mq_notify: double sock_put()' Local Privilege Escalation (Exploit-DB entry) (opens in a new tab)
EDB-ID 45553local, linuxpublished 2 Oct 2018Not verified
References tagged exploit1 reference
- 45553 (opens in a new tab)exploitx_refsource_EXPLOIT-DBx_transferred
Modules, templates and exploits as listed by the Metasploit Framework (BSD-3-Clause), ProjectDiscovery's Nuclei templates (MIT) and the Exploit Database (GPLv2), read once a day. Where the data comes from
Timeline
ID reserved
By mitre
Published
- 7 years later
· 7 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 3.1 | High7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 3.8% · top 9.7% of all CVEs (11 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.8.
Affected products
n/a
- affected n/a
References
References12
- DSA-3927 (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_transferred
- RHSA-2018:0169 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- RHSA-2017:2918 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- RHSA-2017:2931 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- https://help.ecostruxureit.com/display/public/UADCE725/Security+fixes+in+StruxureWare+Data+Center+Expert+v7.6.0 (opens in a new tab)x_refsource_CONFIRMx_transferred
- 99919 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- https://github.com/torvalds/linux/commit/f991af3daabaecff34684fd51fac80319d1baad1 (opens in a new tab)x_refsource_CONFIRMx_transferred
- DSA-3945 (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_transferred
- 45553 (opens in a new tab)exploitx_refsource_EXPLOIT-DBx_transferred
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=f991af3daabaecff34684fd51fac80319d1baad1 (opens in a new tab)x_refsource_CONFIRMx_transferred
- RHSA-2018:3822 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- RHSA-2017:2930 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2017-2810 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2017-11176)Record last updated .