Vulnerability Details : 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 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.
Vulnerability category: Memory CorruptionDenial of service
Products affected by CVE-2017-11176
- cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
- cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2017-11176
0.08%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 33 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2017-11176
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
7.2
|
HIGH | AV:L/AC:L/Au:N/C:C/I:C/A:C |
3.9
|
10.0
|
NIST | |
|
7.8
|
HIGH | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
1.8
|
5.9
|
NIST |
CWE ids for CVE-2017-11176
-
The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.Assigned by: nvd@nist.gov (Primary)
References for CVE-2017-11176
-
https://access.redhat.com/errata/RHSA-2018:3822
RHSA-2018:3822 - Security Advisory - Red Hat Customer PortalThird Party Advisory
-
https://access.redhat.com/errata/RHSA-2017:2930
RHSA-2017:2930 - Security Advisory - Red Hat Customer PortalThird Party Advisory
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https://www.exploit-db.com/exploits/45553/
Linux Kernel < 4.11.8 - 'mq_notify: double sock_put()' Local Privilege EscalationThird Party Advisory;VDB Entry
-
http://www.debian.org/security/2017/dsa-3927
Debian -- Security Information -- DSA-3927-1 linuxThird Party Advisory
-
http://www.debian.org/security/2017/dsa-3945
Debian -- Security Information -- DSA-3945-1 linuxThird Party Advisory
-
https://access.redhat.com/errata/RHSA-2018:0169
RHSA-2018:0169 - Security Advisory - Red Hat Customer PortalThird Party Advisory
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http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=f991af3daabaecff34684fd51fac80319d1baad1
kernel/git/torvalds/linux.git - Linux kernel source treeIssue Tracking;Patch;Third Party Advisory
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http://www.securityfocus.com/bid/99919
Linux kernel CVE-2017-11176 Local Denial of Service VulnerabilityThird Party Advisory;VDB Entry
-
https://access.redhat.com/errata/RHSA-2017:2918
RHSA-2017:2918 - Security Advisory - Red Hat Customer PortalThird Party Advisory
-
https://help.ecostruxureit.com/display/public/UADCE725/Security+fixes+in+StruxureWare+Data+Center+Expert+v7.6.0
Security fixes in StruxureWare Data Center Expert v7.6.0 - User assistance for StruxureWare Data Center Expert 7.x - Help Center: Support for EcoStruxure IT, StruxureWare for Data Centers, and NetBotzThird Party Advisory
-
https://github.com/torvalds/linux/commit/f991af3daabaecff34684fd51fac80319d1baad1
mqueue: fix a use-after-free in sys_mq_notify() · torvalds/linux@f991af3 · GitHubIssue Tracking;Patch;Third Party Advisory
-
https://access.redhat.com/errata/RHSA-2017:2931
RHSA-2017:2931 - Security Advisory - Red Hat Customer PortalThird Party Advisory
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