IDE Xcode Server. Multiple issues were addressed by updating nginx to version 1.21.0.

When NGINX Plus is configured to use the MQTT filter module, undisclosed requests can cause an increase in memory resource utilization.

The nginx package before 1.6.2-5+deb8u3 on Debian jessie, the nginx packages before 1.4.6-1ubuntu3.6 on Ubuntu 14.04 LTS, before 1.10.0-0ubuntu0.16.04.3 on Ubuntu 16.04 LTS, and before 1.10.1-0ubuntu1.1 on Ubuntu 16.10, and the nginx ebuild before 1.10.2-r3 on Gentoo allow local users with access to the web server user account to gain root privileges via a symlink attack on the error log.

When NGINX Plus or NGINX OSS are configured to use the HTTP/3 QUIC module, undisclosed requests can cause NGINX worker processes to terminate.

When NGINX Plus or NGINX OSS are configured to use the HTTP/3 QUIC module, undisclosed requests can cause NGINX worker processes to terminate.

IDE Xcode Server. Multiple issues were addressed by updating nginx to version 1.21.0.

Buffer underflow in src/http/ngxhttpparse.c in nginx 0.1.0 through 0.5.37, 0.6.x before 0.6.39, 0.7.x before 0.7.62, and 0.8.x before 0.8.15 allows remote attackers to execute arbitrary code via crafted HTTP requests.

The ngxhttpparsechunked function in http/ngxhttpparse.c in nginx 1.3.9 through 1.4.0 allows remote attackers to cause a denial of service (crash) and execute arbitrary code via a chunked Transfer-Encoding request with a large chunk size, which triggers an integer signedness error and a stack-based buffer overflow.

nginx 0.8.41 through 1.4.3 and 1.5.x before 1.5.7 allows remote attackers to bypass intended restrictions via an unescaped space character in a URI.

A vulnerability was found in nginx code responsible for saving client request body to a temporary file. A specially crafted request might result in worker process crash due to a NULL pointer dereference while writing client request body to a temporary file.

External references:

http://mailman.nginx.org/pipermail/nginx-announce/2016/000179.html

Upstream patches:

[nginx 1.9.13 - 1.11.0] http://nginx.org/download/patch.2016.write.txt

[nginx 1.3.9 - 1.9.12] http://nginx.org/download/patch.2016.write2.txt

When NGINX Plus is configured to use the MQTT filter module, undisclosed requests can cause an increase in memory resource utilization.

Buffer overflow in ngxhttpmp4module.c in the ngxhttpmp4module module in nginx 1.0.7 through 1.0.14 and 1.1.3 through 1.1.18, when the mp4 directive is used, allows remote attackers to cause a denial of service (memory overwrite) or possibly execute arbitrary code via a crafted MP4 file.

Heap-based buffer overflow in compression-pointer processing in core/ngxresolver.c in nginx before 1.0.10 allows remote resolvers to cause a denial of service (daemon crash) or possibly have unspecified other impact via a long response.

When NGINX Plus or NGINX OSS are configured to use the HTTP/3 QUIC module, undisclosed HTTP/3 encoder instructions can cause NGINX worker processes to terminate or cause other potential impact.

When NGINX Plus or NGINX OSS are configured to use the HTTP/3 QUIC module, undisclosed HTTP/3 encoder instructions can cause NGINX worker processes to terminate or cause or other potential impact.

A similar security issue to CVE-2013-2028 was identified [1] for versions of nginx if proxypass to untrusted upstream HTTP servers are used, which could lead to a denial of service or a disclosure of a worker process' memory.

The problem affects nginx 1.1.4 - 1.2.8, 1.3.0 - 1.4.0 and was assigned the name CVE-2013-2070, so only Fedora 18 is affected.

http://nginx.org/download/patch.2013.proxy.txt

[1] http://www.openwall.com/lists/oss-security/2013/05/13/3

A session fixation issue was discovered in the NGINX OpenID Connect reference implementation, where a nonce was not checked at login time. This flaw allows an attacker to fix a victim's session to an attacker-controlled account. As a result, although the attacker cannot log in as the victim, they can force the session to associate it with the attacker-controlled account, leading to potential misuse of the victim's session.

When NGINX Plus or NGINX OSS are configured to use the HTTP/3 QUIC module, undisclosed HTTP/3 requests can cause NGINX worker processes to terminate.

When NGINX Plus or NGINX OSS are configured to use the HTTP/3 QUIC module and the network infrastructure supports a Maximum Transmission Unit (MTU) of 4096 or greater without fragmentation, undisclosed QUIC packets can cause NGINX worker processes to leak previously freed memory.

IDE Xcode Server. Multiple issues were addressed by updating nginx to version 1.21.0.

A flaw was reported [1] in nginx versions prior to 1.0.14 and 1.1.17 where contents of previously freed memory could be sent to a client if an upstream server returned a specially crafted HTTP response. This could potentially leak sensitive information to the HTTP client.

This has been corrected upstream [2],[3] and a patch [4] is available for earlier versions of nginx.

[1] http://seclists.org/bugtraq/2012/Mar/65 [2] http://trac.nginx.org/nginx/changeset/4530/nginx [3] http://trac.nginx.org/nginx/changeset/4531/nginx [4] http://nginx.org/download/patch.2012.memory.txt

nginx/Windows 1.3.x before 1.3.1 and 1.2.x before 1.2.1 allows remote attackers to bypass intended access restrictions and access restricted files via (1) a trailing . (dot) or (2) certain "$indexallocation" sequences in a request.

nginx 0.8 before 0.8.40 and 0.7 before 0.7.66, when running on Windows, allows remote attackers to obtain source code or unparsed content of arbitrary files under the web document root by appending ::$DATA to the URI.

engine x (nginx) contains a null pointer dereference flaw in versions 0.1.0-0.8.13 before versions 0.8.14, 0.7.62, 0.6.39 and 0.5.38.

http://nginx.net/ http://marc.info/?l=nginx&m=125692080328141&w=2 http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=552035 http://www.debian.org/security/2009/dsa-1920

Directory traversal vulnerability in src/http/modules/ngxhttpdavmodule.c in nginx (aka Engine X) before 0.7.63, and 0.8.x before 0.8.17, allows remote authenticated users to create or overwrite arbitrary files via a .. (dot dot) in the Destination HTTP header for the WebDAV (1) COPY or (2) MOVE method.

When NGINX Plus or NGINX OSS are configured to use the HTTP/3 QUIC module, undisclosed HTTP/3 requests can cause NGINX worker processes to terminate or cause other potential impact. This attack requires that a request be specifically timed during the connection draining process, which the attacker has no visibility and limited influence over.

When NGINX Plus or NGINX OSS are configured to use the HTTP/3 QUIC module, undisclosed HTTP/3 requests can cause NGINX worker processes to terminate or cause other potential impact. This attack requires that a request be specifically timed during the connection draining process, which the attacker has no visibility and limited influence over.

nginx 0.5.6 through 1.7.4, when using the same shared sslsessioncache or sslsessionticketkey for multiple servers, can reuse a cached SSL session for an unrelated context, which allows remote attackers with certain privileges to conduct "virtual host confusion" attacks.

NGINX Open Source and NGINX Plus have a vulnerability in the ngxhttpmp4module, which might allow an attacker to over-read NGINX worker memory resulting in its termination, using a specially crafted mp4 file. The issue only affects NGINX if it is built with the ngxhttpmp4module and the mp4 directive is used in the configuration file. Additionally, the attack is possible only if an attacker can trigger the processing of a specially crafted mp4 file with the ngxhttpmp4module.

A session fixation issue was discovered in the NGINX OpenID Connect reference implementation, where a nonce was not checked at login time. This flaw allows an attacker to fix a victim's session to an attacker-controlled account. As a result, although the attacker cannot log in as the victim, they can force the session to associate it with the attacker-controlled account, leading to potential misuse of the victim's session.