Stack-based buffer overflow in Mozilla Firefox - CVE-2019-11759
Published: October 23, 2019
Vulnerability identifier: #VU22164
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2019-11759
CWE-ID: CWE-121
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Mozilla
Affected software:
Mozilla Firefox
Mozilla Firefox
Detailed vulnerability description
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a boundary error when processing HMAC data. A remote attacker can create a specially crafted web page that causes 4 bytes of HMAC output to be written past the end of a buffer stored on the stack, trick the victim into visiting it and crash the application.
How to mitigate CVE-2019-11759
Install updates from vendor's website.