CVE-2018-20578

CVSS V2 Medium 5 CVSS V3 High 7.5
Description
An issue was discovered in NuttX before 7.27. The function netlib_parsehttpurl() in apps/netutils/netlib/netlib_parsehttpurl.c mishandles URLs longer than hostlen bytes (in the webclient, this is set by default to 40), leading to an Infinite Loop. The attack vector is the Location header of an HTTP 3xx response.
Overview
  • CVE ID
  • CVE-2018-20578
  • Assigner
  • cve@mitre.org
  • Vulnerability Status
  • Analyzed
  • Published Version
  • 2018-12-28T18:29:00
  • Last Modified Date
  • 2019-10-03T00:03:26
Weakness Enumerations
CWE URL
CWE-835 http://cwe.mitre.org/data/definitions/835.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
cpe:2.3:a:nuttx:nuttx:*:*:*:*:*:*:*:* 1 OR 7.27
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:N/AC:L/Au:N/C:N/I:N/A:P
  • Access Vector
  • NETWORK
  • Access Compatibility
  • LOW
  • Authentication
  • NONE
  • Confidentiality Impact
  • NONE
  • Integrity Impact
  • NONE
  • Availability Impact
  • PARTIAL
  • Base Score
  • 5
  • Severity
  • MEDIUM
  • Exploitability Score
  • 10
  • Impact Score
  • 2.9
CVSS Version 3
  • Version
  • 3.0
  • Vector String
  • CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  • Attack Vector
  • NETWORK
  • Attack Compatibility
  • LOW
  • Privileges Required
  • NONE
  • User Interaction
  • NONE
  • Scope
  • UNCHANGED
  • Confidentiality Impact
  • NONE
  • Availability Impact
  • HIGH
  • Base Score
  • 7.5
  • Base Severity
  • HIGH
  • Exploitability Score
  • 3.9
  • Impact Score
  • 3.6
References
Reference URL Reference Tags
https://bitbucket.org/nuttx/nuttx/issues/119/denial-of-service-infinite-loop-while Exploit Patch Third Party Advisory
https://bitbucket.org/nuttx/nuttx/downloads/nuttx-7_27-README.txt Release Notes Third Party Advisory
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2018-20578
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-20578
History
Created Old Value New Value Data Type Notes
2022-05-10 17:34:47 Added to TrackCVE
2022-12-03 15:51:31 2018-12-28T18:29Z 2018-12-28T18:29:00 CVE Published Date updated
2022-12-03 15:51:31 2019-10-03T00:03:26 CVE Modified Date updated
2022-12-03 15:51:31 Analyzed Vulnerability Status updated