SB2016053107 - Fedora 23 update for nginx
Published: May 31, 2016 Updated: April 24, 2025
Security Bulletin ID
SB2016053107
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) Null pointer dereference in ngx_chain_to_iovec() (CVE-ID: CVE-2016-4450)
The vulnerability allows a remote attacker to cause denial of service conditions on the target system.
The vulnerability exists due to an access control error in the ngx_chain_to_iovec() function, when saving the client request body to a temporary file. A remote unauthenticated attacker can cause a null pointer dereference in the ngx_chain_to_iovec() function by sending specially crafted data.
Successful exploitation of this vulnerability may lead to the crash of a worker process.
Remediation
Install update from vendor's website.