CVE-2021-28543

Varnish varnish-modules before 0.17.1 allows remote attackers to cause a denial of service daemon restart in some configurations. This does not affect organizations that only install the Varnish Cache product; however, it is common to install both Varnish Cache and varnish-modules. Specifically, ...

Null pointer dereference

Varnish varnish-modules before 0.17.1 allows remote attackers to cause a denial of service daemon restart in some configurations. This does not affect organizations that only install the Varnish Cache product; however, it is common to install both Varnish Cache and varnish-modules. Specifically, ...

OESA-2021-1032 varnish security update

This is Varnish Cache, a web application accelerator also known as a caching HTTP reverse proxy. You install it in front of any server that speaks HTTP and configure it to cache the contents. Varnish Cache is really, really fast. It typically speeds up delivery with a factor of 300 - 1000x,...

Denial Of Service (DoS)

varnish cache is vulnerable to denial of service. A remote attacker is able to crash the application by sending malicious HTTP/1 requests processed on the same HTTP/1 keep-alive connection. This causes Varnish to restart with a clean cache, resulting in a denial of service condition...

varnish: remote clients may cause Varnish to assert and restart which could result in DoS

An issue was discovered in Varnish Cache before 6.0.6 LTS, 6.1.x and 6.2.x before 6.2.3, and 6.3.x before 6.3.2. It occurs when communication with a TLS termination proxy uses PROXY version 2. There can be an assertion failure and daemon restart, which causes a performance loss...

Moderate: Red Hat Security Advisory: varnish:6 security, bug fix, and enhancement update

An update for the varnish:6 module is now available for Red Hat Enterprise Linux 8. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each...

varnish: not clearing pointer between two client requests leads to information disclosure

An issue was discovered in Varnish Cache before 6.0.5 LTS, 6.1.x and 6.2.x before 6.2.2, and 6.3.x before 6.3.1. It does not clear a pointer between the handling of one client request and the next request within the same connection. This sometimes causes information to be disclosed from the...

RHEL 8 : varnish:6 (RHSA-2020:4756)

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2020:4756 advisory. Varnish Cache is a high-performance HTTP accelerator. It stores web pages in memory so web servers don't have to create the same web page ov...

Moderate: varnish:6 security, bug fix, and enhancement update

Varnish Cache is a high-performance HTTP accelerator. It stores web pages in memory so web servers don't have to create the same web page over and over again, giving the website a significant speed up. The following packages have been upgraded to a later upstream version: varnish 6.0.6. BZ1795673...

varnish:6 security, bug fix, and enhancement update

An update is available for varnish, varnish-modules. This update affects Rocky Linux 8. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from the CVE list Varnish Cache is a high-performance HTTP accelerator. It...

RLSA-2020:4756 Moderate: varnish:6 security, bug fix, and enhancement update

Varnish Cache is a high-performance HTTP accelerator. It stores web pages in memory so web servers don't have to create the same web page over and over again, giving the website a significant speed up. The following packages have been upgraded to a later upstream version: varnish 6.0.6. BZ1795673...

Moderate: Red Hat Enhancement Advisory: rh-varnish6 bug fix and enhancement update

Updated rh-varnish6 packages are now available as a part of Red Hat Software Collections for Red Hat Enterprise Linux. Varnish Cache is a high-performance HTTP reverse proxy. The rh-varnish6 packages provide a recent stable release of Varnish Cache 6. The rh-varnish6 packages have been upgraded t...

CVE-2020-11653

An issue was discovered in Varnish Cache before 6.0.6 LTS, 6.1.x and 6.2.x before 6.2.3, and 6.3.x before 6.3.2. It occurs when communication with a TLS termination proxy uses PROXY version 2. There can be an assertion failure and daemon restart, which causes a performance loss. Mitigation An use...

CVE-2019-20637

An issue was discovered in Varnish Cache before 6.0.5 LTS, 6.1.x and 6.2.x before 6.2.2, and 6.3.x before 6.3.1. It does not clear a pointer between the handling of one client request and the next request within the same connection. This sometimes causes information to be disclosed from the...

Varnish Cache Information Disclosure Vulnerability

Varnish Cache is a set of reverse web caching servers. A security vulnerability exists in Varnish Cache that stems from a failure of the program to clear the pointer to the previous request when processing the next client request in the same connection. An attacker could exploit this vulnerabilit...

Varnish Cache Input Validation Error Vulnerability

Varnish Cache is a set of reverse web caching servers. An input validation error vulnerability exists in Varnish Cache that stems from communication with a TLS proxy using the PROXY v2 version of the protocol. An attacker can exploit this vulnerability to cause assertion failures and daemon...

CVE-2020-11653

An issue was discovered in Varnish Cache before 6.0.6 LTS, 6.1.x and 6.2.x before 6.2.3, and 6.3.x before 6.3.2. It occurs when communication with a TLS termination proxy uses PROXY version 2. There can be an assertion failure and daemon restart, which causes a performance loss...

CVE-2020-11653

An issue was discovered in Varnish Cache before 6.0.6 LTS, 6.1.x and 6.2.x before 6.2.3, and 6.3.x before 6.3.2. It occurs when communication with a TLS termination proxy uses PROXY version 2. There can be an assertion failure and daemon restart, which causes a performance loss...

CVE-2019-20637

An issue was discovered in Varnish Cache before 6.0.5 LTS, 6.1.x and 6.2.x before 6.2.2, and 6.3.x before 6.3.1. It does not clear a pointer between the handling of one client request and the next request within the same connection. This sometimes causes information to be disclosed from the...

CVE-2019-20637

An issue was discovered in Varnish Cache before 6.0.5 LTS, 6.1.x and 6.2.x before 6.2.2, and 6.3.x before 6.3.1. It does not clear a pointer between the handling of one client request and the next request within the same connection. This sometimes causes information to be disclosed from the...