CVE-2021-30538: Insufficient policy enforcement in content security policy
First published: Tue Aug 11 2020(Updated: )
Insufficient policy enforcement in content security policy in Google Chrome prior to 91.0.4472.77 allowed a remote attacker to bypass content security policy via a crafted HTML page.
Credit: chrome-cve-admin@google.com Tianze Ding @D1iv3 Tencent Security Xuanwu Lab
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Google Chrome (Trace Event) | <91.0.4472.77 | 91.0.4472.77 |
| Google Chrome (Trace Event) | <91.0.4472.77 | |
| Fedora | =33 | |
| Fedora | =34 |
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Reference Links
- https://chromereleases.googleblog.com/2021/05/stable-channel-update-for-desktop_25.html (Advisory)
- https://crbug.com/1115045
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ETMZL6IHCTCTREEL434BQ4THQ7EOHJ43/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/PAT6EOXVQFE6JFMFQF4IKAOUQSHMHL54/
- https://security.gentoo.org/glsa/202107-06
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PAT6EOXVQFE6JFMFQF4IKAOUQSHMHL54/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ETMZL6IHCTCTREEL434BQ4THQ7EOHJ43/
Peer vulnerabilities
(Found alongside the following vulnerabilities)
- CVE-2021-30521
- CVE-2021-30522
- CVE-2021-30523
- CVE-2021-30524
- CVE-2021-30525
- CVE-2021-30526
- CVE-2021-30527
- CVE-2021-30528
- CVE-2021-4322
- CVE-2021-30529
- CVE-2021-30530
- CVE-2021-30531
- CVE-2021-30532
- CVE-2021-30533
- CVE-2021-30534
- CVE-2021-30535
- CVE-2021-30542
- CVE-2021-30543
- CVE-2021-30558
- CVE-2021-30536
- CVE-2021-30537
- CVE-2021-30539
- CVE-2021-30540
- CVE-2021-4321
Frequently Asked Questions
What is the severity of CVE-2021-30538?
CVE-2021-30538 is classified as a high-severity vulnerability that allows bypassing of content security policies in Google Chrome.
How do I fix CVE-2021-30538?
To fix CVE-2021-30538, update Google Chrome to version 91.0.4472.77 or later.
What types of systems are affected by CVE-2021-30538?
CVE-2021-30538 affects Google Chrome versions prior to 91.0.4472.77 and specific versions of Fedora.
Can CVE-2021-30538 be exploited remotely?
Yes, CVE-2021-30538 can be exploited remotely by attackers through crafted HTML pages.
What impact does CVE-2021-30538 have on users?
CVE-2021-30538 could potentially lead to unauthorized access to sensitive information by bypassing security policies.
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- agent/severity
- agent/first-publish-date
- collector/mitre-cve
- source/MITRE
- agent/references
- agent/last-modified-date
- agent/event
- agent/trending
- agent/source
- agent/tags
- agent/softwarecombine
- collector/chrome-releases
- agent/software-canonical-lookup
- agent/software-canonical-lookup-request
- collector/nvd-index
- vendor/google
- canonical/google chrome (trace event)
- vendor/fedoraproject
- canonical/fedora
- version/fedora/33
- version/fedora/34