CVE-2017-6346
Race condition in net/packet/af_packet.c in the Linux kernel before 4.9.13 allows local users to cause a denial of service (use-after-free) or possibly have unspecified other impact via a multithreaded application that makes PACKET_FANOUT setsockopt…
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.30%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
Race condition in net/packet/af_packet.c in the Linux kernel before 4.9.13 allows local users to cause a denial of service (use-after-free) or possibly have unspecified other impact via a multithreaded application that makes PACKET_FANOUT setsockopt system calls.
- CVSS 3.1
- 7.0 HIGHCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 0.30% probability · 22th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-362, CWE-416
- Affected
- linux/linux kernel
- Source
- cve@mitre.org
References
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=d199fab63c11998a602205f7ee7ff7c05c97164bPatch, Vendor Advisory
- http://www.debian.org/security/2017/dsa-3804Third Party Advisory
- http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.13Patch, Release Notes, Vendor Advisory
- http://www.openwall.com/lists/oss-security/2017/02/28/6Mailing List, Patch, Third Party Advisory
- http://www.securityfocus.com/bid/96508Third Party Advisory, VDB Entry
- https://github.com/torvalds/linux/commit/d199fab63c11998a602205f7ee7ff7c05c97164bPatch, Vendor Advisory
- https://source.android.com/security/bulletin/2017-09-01Third Party Advisory
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=d199fab63c11998a602205f7ee7ff7c05c97164bPatch, Vendor Advisory
- http://www.debian.org/security/2017/dsa-3804Third Party Advisory
- http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.13Patch, Release Notes, Vendor Advisory
- http://www.openwall.com/lists/oss-security/2017/02/28/6Mailing List, Patch, Third Party Advisory
- http://www.securityfocus.com/bid/96508Third Party Advisory, VDB Entry
- https://github.com/torvalds/linux/commit/d199fab63c11998a602205f7ee7ff7c05c97164bPatch, Vendor Advisory
- https://source.android.com/security/bulletin/2017-09-01Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.