PT-2021-5559 · Google+3 · Google Chrome+3

Published 2021-05-27 · Updated 2024-06-15 · CVE-2021-30521

Positive Technologies (AI Summary)

CVSS v3.1

8.8

High

Base vector

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

Name of the Vulnerable Software and Affected Versions Google Chrome versions prior to 91.0.4472.77

Description The issue is related to a heap buffer overflow in the Autofill feature of Google Chrome, which can be exploited by a remote attacker using a specially crafted HTML page to perform out-of-bounds memory access. This can potentially allow the attacker to cause a stack overflow.

Recommendations For versions prior to 91.0.4472.77, update to version 91.0.4472.77 or later to resolve the issue. As a temporary workaround, consider disabling the Autofill feature until a patch is available. Restrict access to untrusted HTML pages to minimize the risk of exploitation.

Exploit

Fix

Memory Corruption

Weakness Enumeration

CWE-787

Related Identifiers

ALT-PU-2021-1876

ALT-PU-2021-1972

ALT-PU-2021-2007

ALT-PU-2021-2009

ALT-PU-2021-2141

BDU:2021-06415

CVE-2021-30521

OPENSUSE-SU-2021:0825-1

OPENSUSE-SU-2021:0840-1

OPENSUSE-SU-2021_0825-1

OPENSUSE-SU-2024:10681-1

OPENSUSE-SU-2024:12948-1

Affected Products

Alt Linux

Astra Linux

Google Chrome

Suse

References · 2338

• 🔥 https://crbug.com/1208721 · Exploit
• https://cve.org/CVERecord?id=CVE-2021-30521 · Security Note
• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-30521 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2021-30521 · Vendor Advisory
• https://lists.fedoraproject.org/archives/list/[e-mail]/message/ETMZL6IHCTCTREEL434BQ4THQ7EOHJ43 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2021-30521 · Vendor Advisory
• https://osv.dev/vulnerability/openSUSE-SU-2024:12948-1 · Vendor Advisory
• https://chromereleases.googleblog.com/2021/05/stable-channel-update-for-desktop_25.html · Vendor Advisory
• https://bdu.fstec.ru/vul/2021-06415 · Security Note
• https://security-tracker.debian.org/tracker/CVE-2021-30521 · Vendor Advisory
• https://osv.dev/vulnerability/openSUSE-SU-2021:0840-1 · Vendor Advisory
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ETMZL6IHCTCTREEL434BQ4THQ7EOHJ43 · Vendor Advisory
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PAT6EOXVQFE6JFMFQF4IKAOUQSHMHL54 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-30521 · Security Note
• https://ubuntu.com/security/CVE-2021-30521 · Vendor Advisory