SB2019102112 - Stack-based buffer overflow in firefox (Alpine package)
Published: October 21, 2019
Security Bulletin ID
SB2019102112
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Stack-based buffer overflow (CVE-ID: CVE-2019-11759)
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.
Remediation
Install update from vendor's website.