PT-2018-15448 · Apache · Nuttx

Published 2018-12-28 · Updated 2019-10-03 · CVE-2018-20578

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions NuttX versions prior to 7.27

Description An issue was discovered where the function netlib parsehttpurl() mishandles URLs longer than hostlen bytes, leading to an Infinite Loop. The attack vector is the Location header of an HTTP 3xx response.

Recommendations For versions prior to 7.27, update to version 7.27 or later to resolve the issue. As a temporary workaround, consider restricting the length of URLs handled by the netlib parsehttpurl() function to prevent the Infinite Loop.

Exploit

Fix

Infinite Loop

Weakness Enumeration

CWE-835

Related Identifiers

CVE-2018-20578

Affected Products

Nuttx

References · 4

• 🔥 https://bitbucket.org/nuttx/nuttx/issues/119/denial-of-service-infinite-loop-while · Exploit
• https://osv.dev/vulnerability/CVE-2018-20578 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2018-20578 · Security Note
• https://bitbucket.org/nuttx/nuttx/downloads/nuttx-7_27-README.txt · Note