CVE-2020-13950

Advisory lineage Upstream: 0 Downstream: 10
Modified
Published: 10 Jun 2021, 07:10
Last modified:04 Aug 2024, 12:32

Vulnerability Summary

Overall Risk (default)
medium
33/100
CVSS Score
7.5 HIGH
v3.1 (nvd)
EPSS Score
14.44% MEDIUM
14% probability -5.02%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

10 Jun 2021, 07:10
Published
Vulnerability first disclosed
04 Aug 2024, 12:32
Last Modified
Vulnerability information updated

Description

Apache HTTP Server versions 2.4.41 to 2.4.46 mod_proxy_http can be made to crash (NULL pointer dereference) with specially crafted requests using both Content-Length and Transfer-Encoding headers, leading to a Denial of Service

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•MEDIUM•Score: 5AV:N/AC:L/Au:N/C:N/I:N/A:P

EPSS Trends

Current EPSS score: 14.44%• Percentile: 95%

Techniques & Countermeasures

  • CWE-476•NULL Pointer Dereference

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

Affected Systems

  • apache software foundation•apache http server

    2.4.46 | 2.4.43 | 2.4.41

  • Unknown•HTTP Server

    ≥ 2.4.41, ≤ 2.4.46

  • debian•debian_linux

    9.0 | 10.0

  • fedoraproject•fedora

    34 | 35

  • oracle•enterprise_manager_ops_center

    12.4.0.0

  • oracle•instantis_enterprisetrack

    17.1 | 17.2 | 17.3

  • oracle•zfs_storage_appliance_kit

    8.8

References (10)