SB2019042306 - Integer overflow in lighttpd
Published: April 23, 2019 Updated: September 29, 2022
Security Bulletin ID
SB2019042306
Severity
Medium
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) Integer overflow (CVE-ID: CVE-2019-11072)
The vulnerability allows a remote attacker to perform denial of service attack.
The vulnerability exists due to signed integer overflow when processing "/%2F?" characters in burl_normalize_2F_to_slash_fix() function in burl.c, when url-path-2f-decode option is enabled. A remote attacker can send a specially crafted HTTP GET request to the affected server, trigger integer overflow and crash the service.
Remediation
Install update from vendor's website.