Reporter Gentoo Foundation
nginx is a robust, small, and high performance HTTP and reverse proxy server.
Multiple vulnerabilities have been found in nginx:
- The TLS protocol does not properly handle session renegotiation requests (CVE-2009-3555).
- The "ngx_http_process_request_headers()" function in ngx_http_parse.c could cause a NULL pointer dereference (CVE-2009-3896).
- nginx does not properly sanitize user input for the the WebDAV COPY or MOVE methods (CVE-2009-3898).
- The "ngx_resolver_copy()" function in ngx_resolver.c contains a boundary error which could cause a heap-based buffer overflow (CVE-2011-4315).
- nginx does not properly parse HTTP header responses which could expose sensitive information (CVE-2012-1180).
A remote attacker could possibly execute arbitrary code with the privileges of the nginx process, cause a Denial of Service condition, create or overwrite arbitrary files, or obtain sensitive information.
There is no known workaround at this time.
All nginx users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=www-servers/nginx-1.0.14"