BIT-MOODLE-2021-40694

Insufficient escaping of the LaTeX preamble made it possible for site administrators to read files available to the HTTP server system account...

BIT-PYTHON-2020-8492

Python 2.7 through 2.7.17, 3.5 through 3.5.9, 3.6 through 3.6.10, 3.7 through 3.7.6, and 3.8 through 3.8.1 allows an HTTP server to conduct Regular Expression Denial of Service ReDoS attacks against a client because of urllib.request.AbstractBasicAuthHandler catastrophic backtracking...

BIT-PYTHON-2021-3733

There's a flaw in urllib's AbstractBasicAuthHandler class. An attacker who controls a malicious HTTP server that an HTTP client such as web browser connects to, could trigger a Regular Expression Denial of Service ReDOS during an authentication request with a specially crafted payload that is sen...

BIT-APACHE-2020-11984

Apache HTTP server 2.4.32 to 2.4.44 modproxyuwsgi info disclosure and possible RCE...

BIT-APACHE-2020-11985

IP address spoofing when proxying using modremoteip and modrewrite For configurations using proxying with modremoteip and certain modrewrite rules, an attacker could spoof their IP address for logging and PHP scripts. Note this issue was fixed in Apache HTTP Server 2.4.24 but was retrospectively...

BIT-APACHE-2020-11993

Apache HTTP Server versions 2.4.20 to 2.4.43 When trace/debug was enabled for the HTTP/2 module and on certain traffic edge patterns, logging statements were made on the wrong connection, causing concurrent use of memory pools. Configuring the LogLevel of modhttp2 above "info" will mitigate this...

BIT-APACHE-2020-13938 Improper Handling of Insufficient Privileges

Apache HTTP Server versions 2.4.0 to 2.4.46 Unprivileged local users can stop httpd on Windows...

BIT-APACHE-2020-13950 mod_proxy_http NULL pointer dereference

Apache HTTP Server versions 2.4.41 to 2.4.46 modproxyhttp can be made to crash NULL pointer dereference with specially crafted requests using both Content-Length and Transfer-Encoding headers, leading to a Denial of Service...

BIT-APACHE-2020-1927

In Apache HTTP Server 2.4.0 to 2.4.41, redirects configured with modrewrite that were intended to be self-referential might be fooled by encoded newlines and redirect instead to an an unexpected URL within the request URL...

BIT-APACHE-2020-1934

In Apache HTTP Server 2.4.0 to 2.4.41, modproxyftp may use uninitialized memory when proxying to a malicious FTP server...

BIT-APACHE-2020-35452 mod_auth_digest possible stack overflow by one nul byte

Apache HTTP Server versions 2.4.0 to 2.4.46 A specially crafted Digest nonce can cause a stack overflow in modauthdigest. There is no report of this overflow being exploitable, nor the Apache HTTP Server team could create one, though some particular compiler and/or compilation option might make i...

BIT-APACHE-2021-26690 mod_session NULL pointer dereference

Apache HTTP Server versions 2.4.0 to 2.4.46 A specially crafted Cookie header handled by modsession can cause a NULL pointer dereference and crash, leading to a possible Denial Of Service...

BIT-APACHE-2021-26691 Apache HTTP Server mod_session response handling heap overflow

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...

BIT-APACHE-2021-30641 Unexpected URL matching with 'MergeSlashes OFF'

Apache HTTP Server versions 2.4.39 to 2.4.46 Unexpected matching behavior with 'MergeSlashes OFF'...

BIT-APACHE-2021-33193 Request splitting via HTTP/2 method injection and mod_proxy

A crafted method sent through HTTP/2 will bypass validation and be forwarded by modproxy, which can lead to request splitting or cache poisoning. This issue affects Apache HTTP Server 2.4.17 to 2.4.48...

BIT-APACHE-2021-34798 NULL pointer dereference in httpd core

Malformed requests may cause the server to dereference a NULL pointer. This issue affects Apache HTTP Server 2.4.48 and earlier...

BIT-APACHE-2021-36160 mod_proxy_uwsgi out of bound read

A carefully crafted request uri-path can cause modproxyuwsgi to read above the allocated memory and crash DoS. This issue affects Apache HTTP Server versions 2.4.30 to 2.4.48 inclusive...

BIT-APACHE-2021-39275 ap_escape_quotes buffer overflow

apescapequotes 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...

BIT-APACHE-2021-40438 mod_proxy SSRF

A crafted request uri-path can cause modproxy to forward the request to an origin server choosen by the remote user. This issue affects Apache HTTP Server 2.4.48 and earlier...

BIT-APACHE-2021-41773 Path traversal and file disclosure vulnerability in Apache HTTP Server 2.4.49

A flaw was found in a change made to path normalization in Apache HTTP Server 2.4.49. An attacker could use a path traversal attack to map URLs to files outside the directories configured by Alias-like directives. If files outside of these directories are not protected by the usual default...