CVE-2019-18680

Aliases:UBUNTU-CVE-2019-18680
Advisory lineage Upstream: 0 Downstream: 5
Modified
Published: 04 Nov 2019, 14:13
Last modified:05 Aug 2024, 02:02

Vulnerability Summary

Overall Risk (default)
medium
42/100
CVSS Score
7.8 HIGH
v2.0 (nvd)
EPSS Score
3.64% LOW
4% probability +1.94%
KEV
Not listed
Ransomware
No reports
Public exploits
2 found
Dark Web
Not detected

Timeline

04 Nov 2019, 14:13
Published
Vulnerability first disclosed
05 Aug 2024, 02:02
Last Modified
Vulnerability information updated

Description

An issue was discovered in the Linux kernel 4.4.x before 4.4.195. There is a NULL pointer dereference in rds_tcp_kill_sock() in net/rds/tcp.c that will cause denial of service, aka CID-91573ae4aed0.

CVSS Metrics

  • v3.1•HIGH•Score: 7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  • v2.0•HIGH•Score: 7.8AV:N/AC:L/Au:N/C:N/I:N/A:C

EPSS Trends

Current EPSS score: 3.64%• Percentile: 89%

Techniques & Countermeasures

  • CWE-476•NULL Pointer Dereference

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

Affected Systems

  • ubuntu•linux

    < 4.4.0-168.197

  • ubuntu•linux-aws

    < 4.4.0-1058.62 | < 4.4.0-1098.109

  • ubuntu•linux-azure-edge

    all

  • ubuntu•linux-azure-fde

    all

  • ubuntu•linux-bluefield

    all

  • ubuntu•linux-fips

    < 4.4.0-1025.30 | all

  • ubuntu•linux-gcp-edge

    all

  • ubuntu•linux-gke

    all

  • ubuntu•linux-hwe-edge

    all

  • ubuntu•linux-intel-iot-realtime

    all

  • ubuntu•linux-kvm

    < 4.4.0-1062.69

  • ubuntu•linux-lts-xenial

    < 4.4.0-168.197~14.04.1

  • ubuntu•linux-raspi-realtime

    all

  • ubuntu•linux-raspi2

    < 4.4.0-1125.134

  • ubuntu•linux-realtime

    all

  • ubuntu•linux-riscv

    all | all

  • ubuntu•linux-snapdragon

    < 4.4.0-1129.137

  • linux•linux_kernel

    ≥ 4.4.179, < 4.4.195

References (7)