CVE-2015-8970

Aliases:UBUNTU-CVE-2015-8970DEBIAN-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
0.52% LOW
1% probability +0.45%
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: 0.52%• Percentile: 43%

Techniques & Countermeasures

  • CWE-476•NULL Pointer Dereference

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

Affected Systems

  • debian•linux

    < 4.4.2-1 | < 4.4.2-1 | < 4.4.2-1 | < 4.4.2-1

  • ubuntu•linux

    all

  • ubuntu•linux-azure-fde

    all

  • ubuntu•linux-gke

    all

  • ubuntu•linux-gkeop

    all

  • ubuntu•linux-gkeop-5.15

    all

  • ubuntu•linux-intel-iot-realtime

    all

  • ubuntu•linux-lts-vivid

    < 3.19.0-59.65~14.04.1

  • ubuntu•linux-raspi-realtime

    all

  • ubuntu•linux-raspi2

    all

  • ubuntu•linux-realtime

    all

  • ubuntu•linux-riscv

    all | all

  • linux•linux_kernel

    ≤ 4.4.1

References (16)