PT-2021-4659 · Samsung · Tizen Rt Rtos

Published 2021-08-17 · Updated 2021-09-09 · CVE-2021-22684

Positive Technologies (AI Summary)

CVSS v2.0

7.8

High

Base vector

AV:N/AC:L/Au:N/C:N/I:N/A:C

Name of the Vulnerable Software and Affected Versions Tizen RT RTOS version 3.0.GBB

Description The issue is related to an integer wrap-around in the functions calloc and mm zalloc functions, leading to improper memory assignment. This can result in arbitrary memory allocation, causing unexpected behavior such as a crash. The vulnerability can be exploited by a remote attacker to cause a denial of service.

Recommendations For Tizen RT RTOS version 3.0.GBB, consider disabling the functions calloc and mm zalloc functions as a temporary workaround until a patch is available. Restrict access to these functions to minimize the risk of exploitation. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Integer Overflow

Weakness Enumeration

CWE-190

Related Identifiers

BDU:2021-05352

CVE-2021-22684

Affected Products

Tizen Rt Rtos

References · 7

• https://osv.dev/vulnerability/CVE-2021-22684 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-22684 · Security Note
• https://bdu.fstec.ru/vul/2021-05352 · Security Note
• https://github.com/Samsung/TizenRT · Note
• https://us-cert.cisa.gov/ics/advisories/icsa-21-119-04 · Note
• https://t.me/cibsecurity/28110 · Telegram Post
• https://t.me/cvenotify/20702 · Telegram Post