CVE-2017-1000111

Advisory lineage Upstream: 0 Downstream: 17
Modified
Published: 04 Oct 2017, 01:00
Last modified:05 Aug 2024, 21:53

Vulnerability Summary

Overall Risk (default)
medium
31/100
CVSS Score
7.8 HIGH
v3.1 (nvd)
EPSS Score
0.06% LOW
0% probability 0.00%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

04 Oct 2017, 01:00
Published
Vulnerability first disclosed
05 Aug 2024, 21:53
Last Modified
Vulnerability information updated

Description

Linux kernel: heap out-of-bounds in AF_PACKET sockets. This new issue is analogous to previously disclosed CVE-2016-8655. In both cases, a socket option that changes socket state may race with safety checks in packet_set_ring. Previously with PACKET_VERSION. This time with PACKET_RESERVE. The solution is similar: lock the socket for the update. This issue may be exploitable, we did not investigate further. As this issue affects PF_PACKET sockets, it requires CAP_NET_RAW in the process namespace. But note that with user namespaces enabled, any process can create a namespace in which it has CAP_NET_RAW.

CVSS Metrics

  • v3.1•HIGH•Score: 7.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
  • v2.0•HIGH•Score: 7.2AV:L/AC:L/Au:N/C:C/I:C/A:C

EPSS Trends

Current EPSS score: 0.06%• Percentile: 18%

Techniques & Countermeasures

  • CWE-787•Out-of-bounds Write

    The product writes data past the end, or before the beginning, of the intended buffer.

Affected Systems

  • debian•debian_linux

    8.0 | 9.0

  • linux•linux_kernel

    ≥ 2.6.27, < 3.2.92 | ≥ 3.3, < 3.10.108 | ≥ 3.11, < 3.16.47 | ≥ 3.17, < 3.18.65 | ≥ 3.19, < 4.1.44 | ≥ 4.2, < 4.4.82 | ≥ 4.5, < 4.9.43 | ≥ 4.10, < 4.12.7

  • redhat•enterprise_linux

    5.0 | 6.0 | 7.0

  • redhat•enterprise_linux_desktop

    6.0 | 7.0

  • redhat•enterprise_linux_server

    6.0 | 7.0

  • redhat•enterprise_linux_server_aus

    7.4 | 7.6

  • redhat•enterprise_linux_server_eus

    7.4 | 7.5 | 7.6

  • redhat•enterprise_linux_server_tus

    7.4 | 7.6

  • redhat•enterprise_linux_workstation

    6.0 | 7.0

References (8)