Client crash via WebRTC stack-buffer overflow
Published Jan 8, 2020 · Updated Aug 4, 2024
Stack buffer overflow in Mozilla Firefox before 70, Firefox ESR before 68.2, and Thunderbird before 68.2 allows remote attackers to crash the client. The nr_reg_register_callback function calls nr_reg_assoc_destroy on its stack association, causing r_assoc_destroy to read eight bytes beyond that object. Exploitation requires user interaction with WebRTC-capable content; the demonstrated consequence is a client crash, while code execution was not established.
Summary
What happened
Stack buffer overflow in Mozilla Firefox before 70, Firefox ESR before 68.2, and Thunderbird before 68.2 allows remote attackers to crash the client. The nr_reg_register_callback function calls nr_reg_assoc_destroy on its stack association, causing r_assoc_destroy to read eight bytes beyond that object. Exploitation requires user interaction with WebRTC-capable content; the demonstrated consequence is a client crash, while code execution was not established.
The record
- CVE
- CVE-2019-11760
- Published
- Jan 8, 2020
- Updated
- Aug 4, 2024
- Vendor
- Mozilla
- Product
- Firefox
- Classifications
- CWE-787, T1499
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Jan 8, 2020CVE publishedPublication date reported by the CVE source.
- Aug 4, 2024Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
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- Affected versionversion=before 70
What conditions does exploitation require?
What is affected?
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Public exploit references
No public exploit references are available in this record.
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Technologies
Your stack
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Your stack
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