IBM HTTP Server is affected by multiple vulnerabilities

IBM HTTP Server 8.5, and 9.0 is vulnerable to denial of service and a potential remote code execution due to improper input validation.

SSL/TLS: "Invariance Weakness" vulnerability in RC4 stream cipher

The RC4 algorithm, as used in the TLS protocol and SSL protocol, does not properly combine state data with key data during the initialization phase, which makes it easier for remote attackers to conduct plaintext-recovery attacks against the initial bytes of a stream by sniffing network traffic that occasionally relies on keys affected by the Invariance Weakness, and then using a brute-force approach involving LSB values, aka the "Bar Mitzvah" issue.

IBM HTTP Server is affected by multiple vulnerabilities

IBM HTTP Server 8.5, and 9.0 is vulnerable to remote code execution and denial of service in configurations with TLS mutual authentication (client authentication).

IBM HTTP Server is affected by multiple vulnerabilities

IBM HTTP Server 8.5, and 9.0 is vulnerable to denial of service in configurations where an attacker has write access to parts of the server configuration.

IBM HTTP Server is affected by multiple vulnerabilities

IBM HTTP Server 8.5, and 9.0 is vulnerable to denial of service via the optional module mod_ibm_upload.

IBM HTTP Server is affected by multiple vulnerabilities

IBM HTTP Server 8.5, and 9.0 is vulnerable to denial of service via the optional module mod_fastcgi module.

IBM HTTP Server is affected by multiple vulnerabilities

IBM HTTP Server 8.5, and 9.0 contains a buffer overflow vulnerability. A privileged user, authenticated to the Administration Server, could exploit this vulnerability to execute remote code or cause a denial of service.

IBM HTTP Server is affected by multiple vulnerabilities

IBM HTTP Server 8.5, and 9.0 is vulnerable to invalid pointer dereference. A privileged user, authenticated to the Administration Server, could exploit this vulnerability to expose sensitive information or cause a denial of service.

IBM HTTP Server is affected by multiple vulnerabilities

IBM HTTP Server 8.5, and 9.0 is vulnerable to denial of service via the optional module mod_mem_cache.

The Apache 1.3.x HTTP server for Windows platforms allows remote attackers to list directory contents by requesting a URL containing a large number of / characters.

IBM HTTP Server 1.3.6 (based on Apache) allows remote attackers to cause a denial of service and possibly execute arbitrary commands via a long GET request.

ikeyman in IBM IBMHSSSB 1.0 sets the CLASSPATH environmental variable to include the user's own CLASSPATH directories before the system's directories, which allows a malicious local user to execute arbitrary code as root via a Trojan horse Ikeyman class.

Kernel leak in AfpaCache module of the Fast Response Cache Accelerator (FRCA) component of IBM HTTP Server 1.3.x and Websphere 3.52 allows remote attackers to cause a denial of service via a series of malformed HTTP requests that generate a "bad request" error.

IBM HTTP Server 1.0 on AS/400 allows remote attackers to obtain the path to the web root directory and other sensitive information, which is leaked in an error mesage when a request is made for a non-existent Java Server Page (JSP).

PHP 4.3.4 and earlier in Apache 1.x and 2.x (mod_php) can leak global variables between virtual hosts that are handled by the same Apache child process but have different settings, which could allow remote attackers to obtain sensitive information.

httpd mod_proxy buffer overflow

Heap-based buffer overflow in proxy_util.c for mod_proxy in Apache 1.3.25 to 1.3.31 allows remote attackers to cause a denial of service (process crash) and possibly execute arbitrary code via a negative Content-Length HTTP header field, which causes a large amount of data to be copied.

security flaw

The ap_get_mime_headers_core function in Apache httpd 2.0.49 allows remote attackers to cause a denial of service (memory exhaustion), and possibly an integer signedness error leading to a heap-based buffer overflow on 64 bit systems, via long header lines with large numbers of space or tab characters.

mod_digest_apple for Apache 1.3.31 and 1.3.32 on Mac OS X Server does not properly verify the nonce of a client response, which allows remote attackers to replay credentials.

modules/arch/win32/mod_isapi.c in mod_isapi in the Apache HTTP Server 2.0.37 through 2.0.63, 2.2.0 through 2.2.14, and 2.3.x before 2.3.7, when running on Windows, does not ensure that request processing is complete before calling isapi_unload for an ISAPI .dll module, which allows remote attackers to execute arbitrary code via unspecified vectors related to a crafted request, a reset packet, and "orphaned callback pointers."

Stack-based buffer overflow in the Administration Server in IBM HTTP Server 6.1.0.x through 6.1.0.47, 7.0.0.x before 7.0.0.39, 8.0.0.x before 8.0.0.12, and 8.5.x before 8.5.5.7, as used in WebSphere Application Server and other products, allows remote authenticated users to execute arbitrary code via unspecified vectors.