PT-2021-4189 · Apache · Apache Nuttx

Omri Ben-Bassat · Published 2021-06-21 · Updated 2021-06-24 · CVE-2021-26461

Positive Technologies (AI Summary)

CVSS v3.1

9.8

Critical

Base vector

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

Name of the Vulnerable Software and Affected Versions Apache Nuttx versions prior to 10.1.0

Description The issue is related to an integer wrap-around in the malloc, realloc, and memalign functions, leading to improper memory assignment. This can result in arbitrary memory allocation, causing unexpected behavior such as a crash or remote code injection/execution. The vulnerability can be exploited by a remote attacker to cause a denial of service or execute arbitrary code.

Recommendations For Apache Nuttx versions prior to 10.1.0, update to version 10.1.0 or later to resolve the issue. As a temporary workaround, consider restricting access to the affected functions malloc, realloc, and memalign to minimize the risk of exploitation.

Fix

Integer Overflow

Weakness Enumeration

CWE-190

Related Identifiers

BDU:2021-04785

CVE-2021-26461

Affected Products

Apache Nuttx

References · 6

• https://lists.apache.org/thread.html/r806fccf8b003ae812d807c6c7d97950d44ed29b2713418cbe3f2bddd%40%3Cdev.nuttx.apache.org%3E · Vendor Advisory
• https://bdu.fstec.ru/vul/2021-04785 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2021-26461 · Security Note
• https://osv.dev/vulnerability/CVE-2021-26461 · Vendor Advisory
• https://us-cert.cisa.gov/ics/advisories/icsa-21-119-04 · Note
• https://cybersecurity-help.cz/vdb/SB2021043002 · Note