CVE-2016-9806
Race condition in the netlink_dump function in net/netlink/af_netlink.c in the Linux kernel before 4.6.3 allows local users to cause a denial of service (double free) or possibly have unspecified other impact via a crafted application that makes sendmsg…
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.36%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
Race condition in the netlink_dump function in net/netlink/af_netlink.c in the Linux kernel before 4.6.3 allows local users to cause a denial of service (double free) or possibly have unspecified other impact via a crafted application that makes sendmsg system calls, leading to a free operation associated with a new dump that started earlier than anticipated.
- CVSS 3.1
- 7.8 HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 0.36% probability · 30th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-362, CWE-415
- Affected
- linux/linux kernel
- Source
- cve@mitre.org
References
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=92964c79b357efd980812c4de5c1fd2ec8bb5520Patch, Vendor Advisory
- http://lists.openwall.net/netdev/2016/05/15/69Mailing List, Third Party Advisory
- http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.6.3Release Notes, Vendor Advisory
- http://www.openwall.com/lists/oss-security/2016/12/03/4Mailing List, Patch, Third Party Advisory
- http://www.securityfocus.com/bid/94653Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1037968Third Party Advisory, VDB Entry
- https://access.redhat.com/errata/RHSA-2017:1842Third Party Advisory
- https://access.redhat.com/errata/RHSA-2017:2077Third Party Advisory
- https://access.redhat.com/errata/RHSA-2017:2669Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1401502Issue Tracking, Patch
- https://github.com/torvalds/linux/commit/92964c79b357efd980812c4de5c1fd2ec8bb5520Patch, Third Party Advisory
- https://source.android.com/security/bulletin/2017-03-01.htmlThird Party Advisory
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=92964c79b357efd980812c4de5c1fd2ec8bb5520Patch, Vendor Advisory
- http://lists.openwall.net/netdev/2016/05/15/69Mailing List, Third Party Advisory
- http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.6.3Release Notes, Vendor Advisory
- http://www.openwall.com/lists/oss-security/2016/12/03/4Mailing List, Patch, Third Party Advisory
- http://www.securityfocus.com/bid/94653Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1037968Third Party Advisory, VDB Entry
- https://access.redhat.com/errata/RHSA-2017:1842Third Party Advisory
- https://access.redhat.com/errata/RHSA-2017:2077Third Party Advisory
- https://access.redhat.com/errata/RHSA-2017:2669Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1401502Issue Tracking, Patch
- https://github.com/torvalds/linux/commit/92964c79b357efd980812c4de5c1fd2ec8bb5520Patch, Third Party Advisory
- https://source.android.com/security/bulletin/2017-03-01.htmlThird Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.