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CVE-2020-9490

httpd: Push diary crash on specifically crafted HTTP/2 header

Apache HTTP Server versions 2.4.20 to 2.4.43. A specially crafted value for the 'Cache-Digest' header in a HTTP/2 request would result in a crash when the server actually tries to HTTP/2 PUSH a resource afterwards. Configuring the HTTP/2 feature via "H2Push off" will mitigate this vulnerability for unpatched servers.

CVSS 3.1 · 7.5 High EPSS 88.8% KEV · Not listed
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Apache Canonical Debian and 4 more
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CVE-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 mod_auth_digest. 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 it possible, with limited consequences anyway due to the size (a single byte) and the value (zero byte) of the overflow

CVSS 3.1 · 7.3 High EPSS 53.2% KEV · Not listed
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CVE-2020-1927

httpd: mod_rewrite configurations vulnerable to open redirect

In Apache HTTP Server 2.4.0 to 2.4.41, redirects configured with mod_rewrite 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.

CVSS 3.1 · 6.1 Medium EPSS 56.7% KEV · Not listed
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CVE-2020-13950

mod_proxy_http NULL pointer dereference

Apache 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 Service

CVSS 3.1 · 7.5 High EPSS 50.0% KEV · Not listed
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CVE-2019-17567

mod_proxy_wstunnel tunneling of non Upgraded connections

Apache HTTP Server versions 2.4.6 to 2.4.46 mod_proxy_wstunnel configured on an URL that is not necessarily Upgraded by the origin server was tunneling the whole connection regardless, thus allowing for subsequent requests on the same connection to pass through with no HTTP validation, authentication or authorization possibly configured.

CVSS 3.1 · 5.3 Medium EPSS 59.7% KEV · Not listed
Vendors
CVE-2019-17566

batik: SSRF via "xlink:href"

Apache Batik is vulnerable to server-side request forgery, caused by improper input validation by the "xlink:href" attributes. By using a specially-crafted argument, an attacker could exploit this vulnerability to cause the underlying server to make arbitrary GET requests.

CVSS 3.1 · 7.5 High EPSS 10.9% KEV · Not listed
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CVE-2019-12415

poi: a specially crafted Microsoft Excel document allows attacker to read files from the local filesystem

In Apache POI up to 4.1.0, when using the tool XSSFExportToXml to convert user-provided Microsoft Excel documents, a specially crafted document can allow an attacker to read files from the local filesystem or from internal network resources via XML External Entity (XXE) Processing.

CVSS 3.1 · 5.5 Medium EPSS < 1% KEV · Not listed
Vendors
CVE-2019-10097

httpd: null-pointer dereference in mod_remoteip

In Apache HTTP Server 2.4.32-2.4.39, when mod_remoteip was configured to use a trusted intermediary proxy server using the "PROXY" protocol, a specially crafted PROXY header could trigger a stack buffer overflow or NULL pointer deference. This vulnerability could only be triggered by a trusted proxy and not by untrusted HTTP clients.

CVSS 3.1 · 7.2 High EPSS 52.9% KEV · Not listed
Vendors
CVE-2019-0197

httpd: mod_http2: possible crash on late upgrade

A vulnerability was found in Apache HTTP Server 2.4.34 to 2.4.38. When HTTP/2 was enabled for a http: host or H2Upgrade was enabled for h2 on a https: host, an Upgrade request from http/1.1 to http/2 that was not the first request on a connection could lead to a misconfiguration and crash. Server that never enabled the h2 protocol or that only enabled it for https: and did not set "H2Upgrade on" are unaffected by this issue.

CVSS 3.1 · 4.2 Medium EPSS 8.3% KEV · Not listed
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CVE-2019-0190

httpd: mod_ssl: infinite loop triggered by client-initiated renegotiation when using OpenSSL 1.1.1

A bug exists in the way mod_ssl handled client renegotiations. A remote attacker could send a carefully crafted request that would cause mod_ssl to enter a loop leading to a denial of service. This bug can be only triggered with Apache HTTP Server version 2.4.37 when using OpenSSL version 1.1.1 or later, due to an interaction in changes to handling of renegotiation attempts.

CVSS 3.1 · 7.5 High EPSS 59.9% KEV · Not listed
CVE-2018-8013

batik: information disclosure when deserializing

In Apache Batik 1.x before 1.10, when deserializing subclass of `AbstractDocument`, the class takes a string from the inputStream as the class name which then use it to call the no-arg constructor of the class. Fix was to check the class type before calling newInstance in deserialization.

CVSS 3.0 · 9.8 Critical EPSS 18.6% KEV · Not listed
Vendors
Apache Canonical Debian and 1 more
Products
CVE-2018-17189

httpd: mod_http2: DoS via slow, unneeded request bodies

In Apache HTTP server versions 2.4.37 and prior, by sending request bodies in a slow loris way to plain resources, the h2 stream for that request unnecessarily occupied a server thread cleaning up that incoming data. This affects only HTTP/2 (mod_http2) connections.

CVSS 3.1 · 5.3 Medium EPSS 19.4% KEV · Not listed
Vendors
Apache Canonical Debian and 4 more
Products
CVE-2018-11763

httpd: DoS for HTTP/2 connections by continuous SETTINGS frames

In Apache HTTP Server 2.4.17 to 2.4.34, by sending continuous, large SETTINGS frames a client can occupy a connection, server thread and CPU time without any connection timeout coming to effect. This affects only HTTP/2 connections. A possible mitigation is to not enable the h2 protocol.

CVSS 3.0 · 5.9 Medium EPSS 51.0% KEV · Not listed
Vendors
Apache Canonical Netapp and 2 more