httpd: possible NULL dereference or SSRF in forward proxy configurations

There's a null pointer dereference and server-side request forgery flaw in httpd's modproxy module, when it is configured to be used as a forward proxy. A crafted packet could be sent on the adjacent network to the forward proxy that could cause a crash, or potentially SSRF via misdirected Unix...

httpd: Request splitting via HTTP/2 method injection and mod_proxy

A NULL pointer dereference was found in Apache httpd modh2. The highest threat from this flaw is to system integrity...

httpd: Out-of-bounds read in ap_strcmp_match()

An out-of-bounds read vulnerability was found in httpd. A very large input to the apstrcmpmatch function can lead to an integer overflow and result in an out-of-bounds read...

GLSA-202208-20 : Apache HTTPD: Multiple Vulnerabilities

The remote host is affected by the vulnerability described in GLSA-202208-20 Apache HTTPD: Multiple Vulnerabilities - 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...

Internet Bug Bounty: Pause-based desync in Apache HTTPD

Apache was vulnerable to a pause-based desync. This vulnerability is described in detail in my whitepaper here: https://portswigger.net/research/browser-powered-desync-attackspause Impact This enables server-side HTTP Request Smuggling when Apache is deployed as a back-end server, and it also...

Apache HTTPD Server ap_escape_html2 Integer Overflow Remote Code Execution Vulnerability

This vulnerability allows remote attackers to execute arbitrary code on affected installations of Apache HTTPD Server. Authentication is not required to exploit this vulnerability. The specific flaw exists within the apescapehtml2 function. The issue results from the lack of proper validation of...

httpd: mod_proxy NULL pointer dereference

A flaw was found In Apache httpd. The modproxy has a NULL pointer dereference. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability...

subversion: Subversion's mod_dav_svn is vulnerable to memory corruption

A use-after-free vulnerability was found in Subversion in the moddavsvn Apache HTTP server HTTPd module. While looking up path-based authorization authz rules, multiple calls to the postconfig hook can invalidate cached pointers to object-pools, which Subversion subsequently uses. This issue...

Apache 2.4.x < 2.4.52 mod_lua Buffer Overflow

The version of Apache httpd installed on the remote host is prior to 2.4.52. It is, therefore, affected by a flaw related to modlua when handling multipart content. A carefully crafted request body can cause a buffer overflow in the modlua multipart parser r:parsebody called from Lua scripts. The...

subversion: Subversion's mod_dav_svn is vulnerable to memory corruption

A use-after-free vulnerability was found in Subversion in the moddavsvn Apache HTTP server HTTPd module. While looking up path-based authorization authz rules, multiple calls to the postconfig hook can invalidate cached pointers to object-pools, which Subversion subsequently uses. This issue...

subversion: Subversion's mod_dav_svn is vulnerable to memory corruption

A use-after-free vulnerability was found in Subversion in the moddavsvn Apache HTTP server HTTPd module. While looking up path-based authorization authz rules, multiple calls to the postconfig hook can invalidate cached pointers to object-pools, which Subversion subsequently uses. This issue...

httpd: possible NULL dereference or SSRF in forward proxy configurations

There's a null pointer dereference and server-side request forgery flaw in httpd's modproxy module, when it is configured to be used as a forward proxy. A crafted packet could be sent on the adjacent network to the forward proxy that could cause a crash, or potentially SSRF via misdirected Unix...

httpd: Single zero byte stack overflow in mod_auth_digest

A flaw was found in Apache httpd. The modauthdigest has a single zero byte stack overflow. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability...

DEBIAN-CVE-2022-22721

If LimitXMLRequestBody is set to allow request bodies larger than 350MB defaults to 1M on 32 bit systems an integer overflow happens which later causes out of bounds writes. This issue affects Apache HTTP Server 2.4.52 and earlier...

AZL-9017 CVE-2022-22721 affecting package httpd for versions less than 2.4.53-1

If LimitXMLRequestBody is set to allow request bodies larger than 350MB defaults to 1M on 32 bit systems an integer overflow happens which later causes out of bounds writes. This issue affects Apache HTTP Server 2.4.52 and earlier...

AZL-9015 CVE-2022-22719 affecting package httpd for versions less than 2.4.53-1

A carefully crafted request body can cause a read to a random memory area which could cause the process to crash. This issue affects Apache HTTP Server 2.4.52 and earlier...

Apache Httpd < 2.4.53 : core: Possible buffer overflow with very large or unlimited LimitXMLRequestBody

If LimitXMLRequestBody is set to allow request bodies larger than 350MB defaults to 1M on 32 bit systems an integer overflow happens which later causes out of bounds writes. This issue affects Apache HTTP Server 2.4.52 and earlier...

VulnCheck KEV: CVE-2017-9788

In Apache httpd before 2.2.34 and 2.4.x before 2.4.27, the value placeholder in Proxy-Authorization headers of type 'Digest' was not initialized or reset before or between successive key=value assignments by modauthdigest. Providing an initial key with no '=' assignment could reflect the stale...

httpd: mod_session: Heap overflow via a crafted SessionHeader value

A heap overflow flaw was found In Apache httpd modsession. The highest threat from this vulnerability is to system availability...

Apache 2.4.x >= 2.4.7 / < 2.4.52 Forward Proxy DoS / SSRF

The version of Apache httpd installed on the remote host is equal to or greater than 2.4.7 and prior to 2.4.52. It is, therefore, affected by a flaw related to acting as a forward proxy. A crafted URI sent to httpd configured as a forward proxy ProxyRequests on can cause a crash NULL pointer...