CVE-2016-7117
What it is
Use-after-free vulnerability in the __sys_recvmmsg function in net/socket.c in the Linux kernel before 4.5.2 allows remote attackers to execute arbitrary code via vectors involving a recvmmsg system call that is mishandled during error processing.
At a glance
- Exploitability
- Can be exploited over the network without logging in. High risk of data exposure, data tampering, service disruption.
- Exploit odds
- 23.6% chance of exploitation in the next 30 days (EPSS). Higher than most.
- Fix
- A patch, advisory or fixed version is referenced. Upgrade or apply it.
Timeline
- PublishedDisclosed publicly on CVE.org and NVD
- Last updatedMost recent change to the record
Why it ranks here
- Exploited in the wild: no, CISA does not list it.
- Exploit odds: 23.6% in the next 30 days (EPSS).
- Severity: 9.8 CRITICAL (CVSS).
- Fix: a patch or advisory is linked.
Details
- Published
- Last modified
- Exploit probability
- 23.6% · EPSS, next 30 days
- Weakness
- CWE-19
- Record status
- Modified
Affected
- Debian Linux 7.0
- Linux Kernel < 3.2.80
- Linux Kernel < 3.4.113
- Linux Kernel < 3.10.102
- Linux Kernel < 3.12.59
- Linux Kernel < 3.14.67
- Linux Kernel < 3.16.35
- Linux Kernel < 3.18.37
Attack profile CVSS 3.1 · 9.8
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Raw vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Is it in your code?
Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.
Read https://cve-list.com/agent/cve/CVE-2016-7117.md and follow it. Check whether this project is affected by CVE-2016-7117. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.
Fix and advisories
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=34b88a68f26a75e4fded796f1a49c40f82234b7d
- http://source.android.com/security/bulletin/2016-10-01.html
- http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.5.2
- https://github.com/torvalds/linux/commit/34b88a68f26a75e4fded796f1a49c40f82234b7d
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=34b88a68f26a75e4fded796f1a49c40f82234b7d
- http://source.android.com/security/bulletin/2016-10-01.html
- http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.5.2
- https://github.com/torvalds/linux/commit/34b88a68f26a75e4fded796f1a49c40f82234b7d
References
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=34b88a68f26a75e4fded796f1a49c40f82234b7d
- http://rhn.redhat.com/errata/RHSA-2016-2962.html
- http://rhn.redhat.com/errata/RHSA-2017-0031.html
- http://rhn.redhat.com/errata/RHSA-2017-0036.html
- http://rhn.redhat.com/errata/RHSA-2017-0065.html
- http://rhn.redhat.com/errata/RHSA-2017-0086.html
- http://rhn.redhat.com/errata/RHSA-2017-0091.html
- http://rhn.redhat.com/errata/RHSA-2017-0113.html
- http://rhn.redhat.com/errata/RHSA-2017-0196.html
- http://rhn.redhat.com/errata/RHSA-2017-0215.html
- http://rhn.redhat.com/errata/RHSA-2017-0216.html
- http://rhn.redhat.com/errata/RHSA-2017-0217.html
- http://rhn.redhat.com/errata/RHSA-2017-0270.html
- http://source.android.com/security/bulletin/2016-10-01.html
- http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.5.2
- http://www.securityfocus.com/bid/93304
- https://bugzilla.novell.com/show_bug.cgi?id=1003077
- https://bugzilla.redhat.com/show_bug.cgi?id=1382268
- https://github.com/torvalds/linux/commit/34b88a68f26a75e4fded796f1a49c40f82234b7d
- https://people.canonical.com/~ubuntu-security/cve/2016/CVE-2016-7117.html
- https://security-tracker.debian.org/tracker/CVE-2016-7117
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=34b88a68f26a75e4fded796f1a49c40f82234b7d
- http://rhn.redhat.com/errata/RHSA-2016-2962.html
- http://rhn.redhat.com/errata/RHSA-2017-0031.html
- http://rhn.redhat.com/errata/RHSA-2017-0036.html