CVE-2016-8645
First published: Thu Nov 10 2016(Updated: )
It was discovered that the Linux kernel since 3.6-rc1 with 'net.ipv4.tcp_fastopen' set to 1 can hit BUG() statement in tcp_collapse() function after making a number of certain syscalls leading to a possible system crash.
Credit: secalert@redhat.com secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| redhat/kernel-rt | <0:3.10.0-693.rt56.617.el7 | 0:3.10.0-693.rt56.617.el7 |
| redhat/kernel | <0:3.10.0-693.el7 | 0:3.10.0-693.el7 |
| redhat/kernel-rt | <1:3.10.0-693.2.1.rt56.585.el6 | 1:3.10.0-693.2.1.rt56.585.el6 |
| Linux Linux kernel | <=4.8.9 | |
| debian/linux | 5.10.223-1 5.10.226-1 6.1.115-1 6.1.119-1 6.11.10-1 6.12.5-1 |
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Reference Links
- https://www.cve.org/CVERecord?id=CVE-2016-8645 https://nvd.nist.gov/vuln/detail/CVE-2016-8645
- https://bugzilla.redhat.com/show_bug.cgi?id=1393904
- https://access.redhat.com/errata/RHSA-2017:2077
- https://access.redhat.com/errata/RHSA-2017:1842
- https://access.redhat.com/errata/RHSA-2017:2669
- https://access.redhat.com/security/cve/CVE-2016-8645
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=ac6e780070e30e4c35bd395acfe9191e6268bdd3
- http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.8.10
- http://www.openwall.com/lists/oss-security/2016/11/11/3
- http://www.openwall.com/lists/oss-security/2016/11/30/3
- http://www.securityfocus.com/bid/94264
- http://www.securitytracker.com/id/1037285
- https://github.com/torvalds/linux/commit/ac6e780070e30e4c35bd395acfe9191e6268bdd3
- https://launchpad.net/bugs/cve/CVE-2016-8645
- http://www.spinics.net/lists/stable/msg150470.html
- http://www.spinics.net/lists/netdev/msg403701.html
- http://marc.info/?l=linux-netdev&m=147878925724283&w=2
- http://marc.info/?t=147878927800005&r=1&w=2
- http://marc.info/?l=linux-netdev&m=147881188232264&w=2
- http://marc.info/?t=147881111500001&r=1&w=2&n=2
- http://marc.info/?l=linux-netdev&m=147881236332369&w=2
- http://marc.info/?t=147881240700003&r=1&w=2
- http://www.spinics.net/lists/netdev/msg403787.html
- http://www.spinics.net/lists/netdev/msg403789.html
- https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=ac6e780070e30e4c35bd395acfe9191e6268bdd3
- http://seclists.org/oss-sec/2016/q4/397
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1393908
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-8645
- https://nvd.nist.gov/vuln/detail/CVE-2016-8645
- https://security-tracker.debian.org/tracker/CVE-2016-8645
- https://ubuntu.com/security/CVE-2016-8645
- https://git.kernel.org/linus/ac6e780070e30e4c35bd395acfe9191e6268bdd3
Parent vulnerabilities
(Appears in the following advisories)
Frequently Asked Questions
What is the vulnerability ID of this issue?
The vulnerability ID of this issue is CVE-2016-8645.
What software is affected by this vulnerability?
The Linux kernel versions before 4.8.10 are affected by this vulnerability.
What is the severity rating of CVE-2016-8645?
The severity rating of CVE-2016-8645 is medium with a CVSS score of 6.2.
How does this vulnerability impact the system?
This vulnerability allows local users to cause a denial of service (system crash) via a crafted application.
Are there any references for this vulnerability?
Yes, you can find more information about CVE-2016-8645 at the following references: [1](http://www.spinics.net/lists/stable/msg150470.html), [2](http://www.spinics.net/lists/netdev/msg403701.html), and [3](http://marc.info/?l=linux-netdev&m=147878925724283&w=2).
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