CVE-2021-30543: Use after free in Tab Strip
First published: Wed Apr 28 2021(Updated: )
Use after free in Tab Strip in Google Chrome prior to 91.0.4472.77 allowed an attacker who convinced a user to install a malicious extension to potentially exploit heap corruption via a crafted HTML page.
Credit: chrome-cve-admin@google.com Khalil Zhani
| 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 | |
| Fedora | =35 |
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Reference Links
- https://chromereleases.googleblog.com/2021/05/stable-channel-update-for-desktop_25.html (Advisory)
- https://crbug.com/1203607
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/4DDW7HAHTS3SDVXBQUY4SURELO5D4X7R/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/PM7MOYYHJSWLIFZ4TPJTD7MSA3HSSLV2/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/WKQDE3PWDKASAPSUJYMOQGL73L3YQRFS/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WKQDE3PWDKASAPSUJYMOQGL73L3YQRFS/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4DDW7HAHTS3SDVXBQUY4SURELO5D4X7R/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PM7MOYYHJSWLIFZ4TPJTD7MSA3HSSLV2/
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-2021-30558
- CVE-2021-30536
- CVE-2021-30537
- CVE-2021-30538
- CVE-2021-30539
- CVE-2021-30540
- CVE-2021-4321
Frequently Asked Questions
What is the severity of CVE-2021-30543?
CVE-2021-30543 is classified as a high-severity vulnerability.
How do I fix CVE-2021-30543?
To fix CVE-2021-30543, update Google Chrome to version 91.0.4472.77 or later.
Which versions of Google Chrome are affected by CVE-2021-30543?
CVE-2021-30543 affects versions of Google Chrome prior to 91.0.4472.77.
Can CVE-2021-30543 be exploited remotely?
Yes, CVE-2021-30543 can potentially be exploited remotely via a crafted HTML page.
What is a use after free vulnerability like CVE-2021-30543?
A use after free vulnerability, such as CVE-2021-30543, occurs when memory is freed and then still accessed, leading to potential heap corruption.
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- agent/weakness
- agent/description
- agent/title
- agent/author
- agent/severity
- agent/first-publish-date
- collector/mitre-cve
- source/MITRE
- agent/references
- agent/last-modified-date
- agent/event
- agent/trending
- agent/source
- agent/softwarecombine
- agent/tags
- 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
- version/fedora/35