Low: mod_auth_digest possible stack overflow by one nul byteĪpache HTTP Server versions 2.4.0 to 2.4.46 A specially crafted Digest nonce can cause a stack overflow in mod_auth_digest. Low: mod_proxy_http NULL pointer dereferenceĪpache HTTP Server versions 2.4.41 to 2.4.46 mod_proxy_http 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 ServiceĪcknowledgements: Reported by Marc Stern () Reported to security team Fixed in Apache HTTP Server 2.4.55 moderate: mod_dav out of bounds read, or write of zero byteĪ carefully crafted If: request header can cause a memory read, or write of a single zero byte, in a pool (heap) memory location beyond the header value sent. Consult the Apache httpd 2.2 vulnerabilities list for more information. The initial GA release, Apache httpd 2.4.1, includes fixes for all vulnerabilities which have been resolved in Apache httpd 2.2.22 and all older releases. Please send comments or corrections for these vulnerabilities to the Security Team. Please note that if a vulnerability is shown below as being fixed in a '-dev' release then this means that a fix has been applied to the development source tree and will be part of an upcoming full release.

We also list the versions the flaw is known to affect, and where a flaw has not been verified list the version with a question mark. Each vulnerability is given a security impact rating by the Apache security team - please note that this rating may well vary from platform to platform. This page lists all security vulnerabilities fixed in released versions of Apache HTTP Server 2.4.

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