CVE-2015-8970

Advisory lineage Upstream: 0 Downstream: 9
Modified
Published: 28 Nov 2016, 03:01
Last modified:06 Aug 2024, 08:36

Vulnerability Summary

Overall Risk (default)
low
22/100
CVSS Score
5.5 MEDIUM
v3.0 (nvd)
EPSS Score
0.04% LOW
0% probability -0.03%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

28 Nov 2016, 03:01
Published
Vulnerability first disclosed
06 Aug 2024, 08:36
Last Modified
Vulnerability information updated

Description

crypto/algif_skcipher.c in the Linux kernel before 4.4.2 does not verify that a setkey operation has been performed on an AF_ALG socket before an accept system call is processed, which allows local users to cause a denial of service (NULL pointer dereference and system crash) via a crafted application that does not supply a key, related to the lrw_crypt function in crypto/lrw.c.

CVSS Metrics

  • v3.0•MEDIUM•Score: 5.5CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
  • v2.0•MEDIUM•Score: 4.9AV:L/AC:L/Au:N/C:N/I:N/A:C

EPSS Trends

Current EPSS score: 0.04%• Percentile: 12%

Techniques & Countermeasures

  • CWE-476•NULL Pointer Dereference

    The product dereferences a pointer that it expects to be valid but is NULL.

Affected Systems

  • linux•linux_kernel

    ≤ 4.4.1

References (11)