7.0high

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)…

Published 9 y ago · modified 4 mo ago · JSON

CVSS
7.0
v3.1 · NVD
CISA KEV
No
not known exploited
EPSS
0.3%
percentile 22%
Public exploits
0
none known

Summary

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.

Exploit prediction (EPSS)

0.30% probability of exploitation in the next 30 days, higher than 22% of all scored CVEs.

CVSS scores

Assigned byVersionScoreVector
NVD3.17.0CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD2.06.9AV:L/AC:M/Au:N/C:C/I:C/A:C

Classification

Weakness
  • CWE-362 Concurrent Execution using Shared Resource with Improper Synchronization
  • CWE-416 Use After Free
Technology feeds
Linux kernel (RSS, critical only)

References

  • securityfocus.com /bid/96508 · vdb-entry, x_refsource_BID, x_transferred
  • git.kernel.org /cgit/linux/kernel/git/torvalds/linux.git/commit/?id=d199fab63c11998a602205f7ee7ff7c05c971 · x_refsource_CONFIRM, x_transferred
  • source.android.com /security/bulletin/2017-09-01 · x_refsource_CONFIRM, x_transferred
  • kernel.org /pub/linux/kernel/v4.x/ChangeLog-4.9.13 · x_refsource_CONFIRM, x_transferred
  • openwall.com /lists/oss-security/2017/02/28/6 · mailing-list, x_refsource_MLIST, x_transferred
  • debian.org /security/2017/dsa-3804 · vendor-advisory, x_refsource_DEBIAN, x_transferred
  • github.com /torvalds/linux/commit/d199fab63c11998a602205f7ee7ff7c05c97164b · x_refsource_CONFIRM, x_transferred

Sources

vulnwire keeps one entry per vulnerability: the CVE id wins, then GHSA; records that alias each other are merged. Machine-readable: JSON.