PT-2023-9618 · Samsung · Samsung Android

CVE-2024-20820 · Published 2023-11-28 · Updated 2024-10-17

Positive Technologies (AI Summary)

CVSS v3.1

7.1

High

Base vector

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

Name of the Vulnerable Software and Affected Versions Samsung mobile devices versions prior to SMR Feb-2024 Release 1

Description The issue is related to improper input validation in the bootloader, which allows local privileged attackers to cause an Out-Of-Bounds read. This can potentially impact the confidentiality and availability of protected information. The vulnerability is associated with a buffer overflow in the bootloader component of Samsung Android mobile devices.

Recommendations For versions prior to SMR Feb-2024 Release 1, update to the SMR Feb-2024 Release 1 or later to resolve the issue. As a temporary workaround, consider restricting access to the bootloader to minimize the risk of exploitation.

Exploit

Fix

Out of bounds Read

Weakness Enumeration

CWE-125

Related Identifiers

BDU:2024-08823

CVE-2024-20820

Affected Products

Samsung Android

References · 16

• 🔥 https://github.com/quarkslab/samsung-bootchain-poc · Exploit
• https://bdu.fstec.ru/vul/2024-08823 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2024-20820 · Security Note
• https://cve.org/CVERecord?id=CVE-2024-20820 · Security Note
• https://security.samsungmobile.com/securityUpdate.smsb?year=2024&month=02 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2024-20820 · Vendor Advisory
• https://t.me/cybersecuritytechnologies/11294 · Telegram Post
• https://vulners.com/cve/CVE-2024-20820 · Note
• https://t.me/cvenotify/75407 · Telegram Post
• https://twitter.com/VulmonFeeds/status/1754768046193815632 · Twitter Post
• https://twitter.com/RedPacketSec/status/1755171221270905171 · Twitter Post
• https://twitter.com/ksg93rd/status/1846595808709222659 · Twitter Post
• https://vuldb.com/?id.252920 · Note
• https://twitter.com/airacaaaa/status/1846742808360833199 · Twitter Post
• https://security.samsungmobile.com/securityUpdate.smsb?year=2024&month=02 · Note