SB2019112220 - Buffer Over-read in EmbedThis GoAhead
Published: November 22, 2019 Updated: December 3, 2019
Security Bulletin ID
SB2019112220
Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Information disclosure
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Buffer Over-read (CVE-ID: CVE-2019-19240)
The vulnerability allows a remote attacker to gain access to potentially sensitive information.
The vulnerability exists in the "websRedirect" function due to a boundary condition in processing redirected HTTP requests when supplied with a very large Host header. This can cause a copy of the Host header to fail, leaving that buffer uninitialized. A remote attacker can trigger out-of-bounds read error and read contents of memory on the system.
Remediation
Install update from vendor's website.