CVE-2021-4102
What it is
Use after free in V8 in Google Chrome prior to 96.0.4664.110 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.
At a glance
- Exploitability
- Can be exploited over the network without logging in, but needs a user to act. High risk of data exposure, data tampering, service disruption.
- In the wild
- CISA lists this as exploited in real attacks. Treat as urgent.
- Fix
- A patch, advisory or fixed version is referenced. Upgrade or apply it.
Timeline
- ReservedThe CVE id was reserved by its CNA
- 2021-12-15 Exploited in the wildAdded to CISA's Known Exploited Vulnerabilities list
- 2021-12-29 Remediation deadlineCISA's due date for federal agencies to fix it
- PublishedDisclosed publicly on CVE.org and NVD
- Last updatedMost recent change to the record
Why it ranks here
- Exploited in the wild: yes, CISA lists it. This puts it above everything that is not.
- Exploit odds: 7.8% in the next 30 days (EPSS).
- Severity: 8.8 HIGH (CVSS).
- Fix: a patch or advisory is linked.
Details
- Published
- Last modified
- Added to CISA KEV
- 2021-12-15
- Exploit probability
- 7.8% · EPSS, next 30 days
- Weakness
- CWE-416 · Use after free
- Record status
- Analyzed
Affected
- Google Chrome < 96.0.4664.110
Attack profile CVSS 3.1 · 8.8
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- Required
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Raw vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Is it in your code?
Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.
Read https://cve-list.com/agent/cve/CVE-2021-4102.md and follow it. Check whether this project is affected by CVE-2021-4102. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.
Fix and advisories
- https://chromereleases.googleblog.com/2021/12/stable-channel-update-for-desktop_13.html
- https://chromereleases.googleblog.com/2021/12/stable-channel-update-for-desktop_13.html
References
- https://chromereleases.googleblog.com/2021/12/stable-channel-update-for-desktop_13.html
- https://crbug.com/1278387
- https://chromereleases.googleblog.com/2021/12/stable-channel-update-for-desktop_13.html
- https://crbug.com/1278387
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-4102