CVE-2016-8632: Buffer Overflow
First published: Wed Nov 02 2016(Updated: )
A flaw was found in the TIPC networking subsystem which could allow for memory corruption and possible priveledge escalation. The flaw involves a system with an unusually low MTU (60) on networking devices configured as bearers for the TIPC protocol. Not all devices support or allow MTU's below 68 octets. An attacker can create a packet which will overwrite memory outside of allocated space and this can allow for priveledge escalation. The affected code is not enabled on Red Hat Enterprise Linux 6 and 7. The affected code was not included in Red Hat Enterprise Linux 5. Initial patch: <a href="https://www.mail-archive.com/netdev@vger.kernel.org/msg133205.html">https://www.mail-archive.com/netdev@vger.kernel.org/msg133205.html</a>
Credit: secalert@redhat.com secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linux Linux kernel | >=2.6.16<3.2.85 | |
| Linux Linux kernel | >=3.3<3.16.40 | |
| Linux Linux kernel | >=3.17<4.1.37 | |
| Linux Linux kernel | >=4.2<4.4.65 | |
| Linux Linux kernel | >=4.5<4.8.14 | |
| debian/linux | 5.10.223-1 5.10.226-1 6.1.115-1 6.1.112-1 6.11.7-1 6.11.9-1 |
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Reference Links
- http://www.openwall.com/lists/oss-security/2016/11/08/5
- http://www.securityfocus.com/bid/94211
- https://bugzilla.redhat.com/show_bug.cgi?id=1390832
- https://www.mail-archive.com/netdev%40vger.kernel.org/msg133205.html
- https://launchpad.net/bugs/cve/CVE-2016-8632
- https://www.mail-archive.com/netdev@vger.kernel.org/msg133205.html
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1392262
- http://seclists.org/oss-sec/2016/q4/359
- https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=3de81b758853f0b29c61e246679d20b513c4cfec
- https://security-tracker.debian.org/tracker/CVE-2016-8632
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-8632
- https://nvd.nist.gov/vuln/detail/CVE-2016-8632
- https://ubuntu.com/security/CVE-2016-8632
Frequently Asked Questions
What is the vulnerability ID?
The vulnerability ID is CVE-2016-8632.
What is the severity of CVE-2016-8632?
The severity of CVE-2016-8632 is medium.
What is the affected software for CVE-2016-8632?
The affected software for CVE-2016-8632 includes various Ubuntu packages, Linux kernel versions, and Debian Linux.
How can a local user exploit CVE-2016-8632?
A local user can exploit CVE-2016-8632 to gain privileges or cause a denial of service (heap-based buffer overflow) by leveraging the vulnerability.
Where can I find more information about CVE-2016-8632?
More information about CVE-2016-8632 can be found at the following references: [1][2][3].
- collector/nvd-index
- agent/type
- agent/remedy
- agent/first-publish-date
- collector/launchpad-cve
- source/Launchpad
- collector/redhat-bugzilla
- source/Red Hat
- alias/CVE-2016-8632
- agent/author
- collector/nvd-cve
- source/NVD
- agent/software-canonical-lookup
- agent/severity
- agent/weakness
- collector/mitre-cve
- source/MITRE
- agent/last-modified-date
- agent/references
- agent/tags
- agent/softwarecombine
- collector/usn-cve
- source/Ubuntu
- agent/description
- agent/event
- collector/security-tracker-debian
- source/Debian
- vendor/linux
- canonical/linux linux kernel
- version/linux linux kernel/2.6.16
- version/linux linux kernel/3.3
- version/linux linux kernel/3.17
- version/linux linux kernel/4.2
- version/linux linux kernel/4.5
- package-manager/debian