
CVE-2021-44790 – Possible buffer overflow when parsing multipart content in mod_lua of Apache HTTP Server 2.4.51 and earlier
https://notcve.org/view.php?id=CVE-2021-44790
20 Dec 2021 — A carefully crafted request body can cause a buffer overflow in the mod_lua multipart parser (r:parsebody() called from Lua scripts). The Apache httpd team is not aware of an exploit for the vulnerabilty though it might be possible to craft one. This issue affects Apache HTTP Server 2.4.51 and earlier. Un cuerpo de petición cuidadosamente diseñado puede causar un desbordamiento de búfer en el analizador multiparte mod_lua (r:parsebody() llamado desde scripts Lua). El equipo de Apache httpd no presenta const... • https://packetstorm.news/files/id/171631 • CWE-787: Out-of-bounds Write •

CVE-2021-40438 – Apache HTTP Server-Side Request Forgery (SSRF)
https://notcve.org/view.php?id=CVE-2021-40438
16 Sep 2021 — A crafted request uri-path can cause mod_proxy to forward the request to an origin server choosen by the remote user. This issue affects Apache HTTP Server 2.4.48 and earlier. Un uri-path diseñado puede causar que mod_proxy reenvíe la petición a un servidor de origen elegido por el usuario remoto. Este problema afecta a Apache HTTP Server versiones 2.4.48 y anteriores A Server-Side Request Forgery (SSRF) flaw was found in mod_proxy of httpd. This flaw allows a remote, unauthenticated attacker to make the ht... • https://github.com/sixpacksecurity/CVE-2021-40438 • CWE-918: Server-Side Request Forgery (SSRF) •

CVE-2021-39275 – ap_escape_quotes buffer overflow
https://notcve.org/view.php?id=CVE-2021-39275
16 Sep 2021 — ap_escape_quotes() may write beyond the end of a buffer when given malicious input. No included modules pass untrusted data to these functions, but third-party / external modules may. This issue affects Apache HTTP Server 2.4.48 and earlier. la función ap_escape_quotes() puede escribir más allá del final de un buffer cuando se le da una entrada maliciosa. Ningún módulo incluido pasa datos no confiables a estas funciones, pero los módulos externos o de terceros pueden hacerlo. Este problema afecta a Apache H... • https://cert-portal.siemens.com/productcert/pdf/ssa-685781.pdf • CWE-787: Out-of-bounds Write •

CVE-2021-34798 – NULL pointer dereference in httpd core
https://notcve.org/view.php?id=CVE-2021-34798
16 Sep 2021 — Malformed requests may cause the server to dereference a NULL pointer. This issue affects Apache HTTP Server 2.4.48 and earlier. Unas peticiones malformadas pueden causar que el servidor haga desreferencia a un puntero NULL. Este problema afecta a Apache HTTP Server versiones 2.4.48 y anteriores A NULL pointer dereference in httpd allows an unauthenticated remote attacker to crash httpd by providing malformed HTTP requests. The highest threat from this vulnerability is to system availability. • http://httpd.apache.org/security/vulnerabilities_24.html • CWE-476: NULL Pointer Dereference •

CVE-2021-32792 – XSS vulnerability when using OIDCPreservePost On in mod_auth_openidc
https://notcve.org/view.php?id=CVE-2021-32792
26 Jul 2021 — mod_auth_openidc is an authentication/authorization module for the Apache 2.x HTTP server that functions as an OpenID Connect Relying Party, authenticating users against an OpenID Connect Provider. In mod_auth_openidc before version 2.4.9, there is an XSS vulnerability in when using `OIDCPreservePost On`. mod_auth_openidc es un módulo de autenticación/autorización para el servidor HTTP Apache versión 2.x que funciona como OpenID Connect Relying Party, autenticando a usuarios contra un proveedor de OpenID Co... • https://github.com/zmartzone/mod_auth_openidc/commit/00c315cb0c8ab77c67be4a2ac08a71a83ac58751 • CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') •

CVE-2021-32791 – Hardcoded static IV and AAD with a reused key in AES GCM encryption in mod_auth_openidc
https://notcve.org/view.php?id=CVE-2021-32791
26 Jul 2021 — mod_auth_openidc is an authentication/authorization module for the Apache 2.x HTTP server that functions as an OpenID Connect Relying Party, authenticating users against an OpenID Connect Provider. In mod_auth_openidc before version 2.4.9, the AES GCM encryption in mod_auth_openidc uses a static IV and AAD. It is important to fix because this creates a static nonce and since aes-gcm is a stream cipher, this can lead to known cryptographic issues, since the same key is being reused. From 2.4.9 onwards this h... • https://github.com/zmartzone/mod_auth_openidc/commit/375407c16c61a70b56fdbe13b0d2c8f11398e92c • CWE-323: Reusing a Nonce, Key Pair in Encryption CWE-330: Use of Insufficiently Random Values •

CVE-2021-32786 – Open Redirect in oidc_validate_redirect_url()
https://notcve.org/view.php?id=CVE-2021-32786
22 Jul 2021 — mod_auth_openidc is an authentication/authorization module for the Apache 2.x HTTP server that functions as an OpenID Connect Relying Party, authenticating users against an OpenID Connect Provider. In versions prior to 2.4.9, `oidc_validate_redirect_url()` does not parse URLs the same way as most browsers do. As a result, this function can be bypassed and leads to an Open Redirect vulnerability in the logout functionality. This bug has been fixed in version 2.4.9 by replacing any backslash of the URL to red... • https://daniel.haxx.se/blog/2017/01/30/one-url-standard-please • CWE-601: URL Redirection to Untrusted Site ('Open Redirect') •

CVE-2021-32785 – Format string bug in the Redis cache implementation
https://notcve.org/view.php?id=CVE-2021-32785
22 Jul 2021 — mod_auth_openidc is an authentication/authorization module for the Apache 2.x HTTP server that functions as an OpenID Connect Relying Party, authenticating users against an OpenID Connect Provider. When mod_auth_openidc versions prior to 2.4.9 are configured to use an unencrypted Redis cache (`OIDCCacheEncrypt off`, `OIDCSessionType server-cache`, `OIDCCacheType redis`), `mod_auth_openidc` wrongly performed argument interpolation before passing Redis requests to `hiredis`, which would perform it again and l... • https://github.com/zmartzone/mod_auth_openidc/commit/dc672688dc1f2db7df8ad4abebc367116017a449 • CWE-134: Use of Externally-Controlled Format String •

CVE-2021-31618 – NULL pointer dereference on specially crafted HTTP/2 request
https://notcve.org/view.php?id=CVE-2021-31618
15 Jun 2021 — Apache HTTP Server protocol handler for the HTTP/2 protocol checks received request headers against the size limitations as configured for the server and used for the HTTP/1 protocol as well. On violation of these restrictions and HTTP response is sent to the client with a status code indicating why the request was rejected. This rejection response was not fully initialised in the HTTP/2 protocol handler if the offending header was the very first one received or appeared in a a footer. This led to a NULL po... • http://httpd.apache.org/security/vulnerabilities_24.html • CWE-476: NULL Pointer Dereference •

CVE-2021-26691 – Apache HTTP Server mod_session response handling heap overflow
https://notcve.org/view.php?id=CVE-2021-26691
10 Jun 2021 — In Apache HTTP Server versions 2.4.0 to 2.4.46 a specially crafted SessionHeader sent by an origin server could cause a heap overflow Apache HTTP Server versiones 2.4.0 a 2.4.46 , un parámetro SessionHeader especialmente diseñado enviado por un servidor de origen podría causar un desbordamiento de pila A heap overflow flaw was found In Apache httpd mod_session. The highest threat from this vulnerability is to system availability. Red Hat JBoss Core Services is a set of supplementary software for Red Hat JBo... • http://httpd.apache.org/security/vulnerabilities_24.html • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer CWE-122: Heap-based Buffer Overflow CWE-787: Out-of-bounds Write •