CVE-2016-9793: Buffer Overflow
First published: Fri Dec 02 2016(Updated: )
The sock_setsockopt function in net/core/sock.c in the Linux kernel before 4.8.14 mishandles negative values of sk_sndbuf and sk_rcvbuf, which allows local users to cause a denial of service (memory corruption and system crash) or possibly have unspecified other impact by leveraging the CAP_NET_ADMIN capability for a crafted setsockopt system call with the (1) SO_SNDBUFFORCE or (2) SO_RCVBUFFORCE option.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| redhat/kernel-rt | <0:3.10.0-514.16.1.rt56.437.el7 | 0:3.10.0-514.16.1.rt56.437.el7 |
| redhat/kernel | <0:3.10.0-514.16.1.el7 | 0:3.10.0-514.16.1.el7 |
| redhat/kernel-rt | <1:3.10.0-514.rt56.219.el6 | 1:3.10.0-514.rt56.219.el6 |
| Linux Linux kernel | >=3.5<3.12.69 | |
| Linux Linux kernel | >=3.13<3.16.40 | |
| Linux Linux kernel | >=3.17<3.18.52 | |
| Linux Linux kernel | >=3.19<4.1.50 | |
| Linux Linux kernel | >=4.2<4.4.38 | |
| Linux Linux kernel | >=4.5<4.8.14 | |
| redhat/kernel | <4.9 | 4.9 |
| Google Android | ||
| 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
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=b98b0bc8c431e3ceb4b26b0dfc8db509518fb290
- https://source.android.com/docs/security/bulletin/2017-03-01 (Advisory)
- http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.8.14
- http://www.openwall.com/lists/oss-security/2016/12/03/1
- http://www.securityfocus.com/bid/94655
- http://www.securitytracker.com/id/1037968
- https://access.redhat.com/errata/RHSA-2017:0931
- https://access.redhat.com/errata/RHSA-2017:0932
- https://access.redhat.com/errata/RHSA-2017:0933
- https://bugzilla.redhat.com/show_bug.cgi?id=1402013
- https://github.com/torvalds/linux/commit/b98b0bc8c431e3ceb4b26b0dfc8db509518fb290
- https://github.com/xairy/kernel-exploits/tree/master/CVE-2016-9793
- https://source.android.com/security/bulletin/2017-03-01.html
- https://access.redhat.com/security/cve/CVE-2012-6704
- http://seclists.org/oss-sec/2016/q4/574
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1402014
- https://www.cve.org/CVERecord?id=CVE-2016-9793 https://nvd.nist.gov/vuln/detail/CVE-2016-9793
- https://access.redhat.com/security/cve/CVE-2016-9793
- https://git.kernel.org/linus/b98b0bc8c431e3ceb4b26b0dfc8db509518fb290
- https://security-tracker.debian.org/tracker/CVE-2016-9793
Parent vulnerabilities
(Appears in the following advisories)
- collector/redhat-cve
- collector/nvd-index
- agent/type
- agent/first-publish-date
- agent/remedy
- agent/severity
- agent/author
- agent/weakness
- agent/references
- agent/description
- collector/redhat-bugzilla
- source/Red Hat
- alias/CVE-2016-9793
- agent/software-canonical-lookup
- collector/mitre-cve
- source/MITRE
- agent/last-modified-date
- agent/tags
- agent/event
- collector/android-source
- source/Android
- collector/security-tracker-debian
- source/Debian
- agent/softwarecombine
- agent/trending
- package-manager/redhat
- vendor/linux
- canonical/linux linux kernel
- version/linux linux kernel/3.5
- version/linux linux kernel/3.13
- version/linux linux kernel/3.17
- version/linux linux kernel/3.19
- version/linux linux kernel/4.2
- version/linux linux kernel/4.5
- vendor/google
- canonical/google android
- package-manager/debian