Design/Logic Flaw

The Opportunistic Encryption feature of HTTP2 RFC 8164 allows a connection to be transparently upgraded to TLS while retaining the visual properties of an HTTP connection, including being same-origin with unencrypted connections on port 80. However, if a second encrypted port on the same IP addre...

CVE-2021-38507

CVE-2021-38507 describes a vulnerability in HTTP/2 Opportunistic Encryption (RFC 8164) where, if a second encrypted port on the same IP (e.g., 8443) did not opt in, a network attacker could forward 443 to 8443 and trick the browser into treating the content as same-origin with HTTP. The issue was...

CVE-2021-38507

The Opportunistic Encryption feature of HTTP2 RFC 8164 allows a connection to be transparently upgraded to TLS while retaining the visual properties of an HTTP connection, including being same-origin with unencrypted connections on port 80. However, if a second encrypted port on the same IP addre...

CVE-2021-38507

The Opportunistic Encryption feature of HTTP2 RFC 8164 allows a connection to be transparently upgraded to TLS while retaining the visual properties of an HTTP connection, including being same-origin with unencrypted connections on port 80. However, if a second encrypted port on the same IP addre...

CVE-2021-38507

The Opportunistic Encryption feature of HTTP2 RFC 8164 allows a connection to be transparently upgraded to TLS while retaining the visual properties of an HTTP connection, including being same-origin with unencrypted connections on port 80. However, if a second encrypted port on the same IP addre...

CVE-2021-43535

A use-after-free could have occured when an HTTP2 session object was released on a different thread, leading to memory corruption and a potentially exploitable crash. This vulnerability affects Firefox 93, Thunderbird 91.3, and Firefox ESR 91.3...

CVE-2021-43535

A use-after-free could have occured when an HTTP2 session object was released on a different thread, leading to memory corruption and a potentially exploitable crash. This vulnerability affects Firefox 93, Thunderbird 91.3, and Firefox ESR 91.3...

CVE-2021-43535

A use-after-free could have occured when an HTTP2 session object was released on a different thread, leading to memory corruption and a potentially exploitable crash. This vulnerability affects Firefox 93, Thunderbird 91.3, and Firefox ESR 91.3...

CVE-2021-43535

CVE-2021-43535 is a memory-safety vulnerability in Mozilla browsers where an HTTP2 session object could be released on a different thread, causing use-after-free, memory corruption, and a potentially exploitable crash. The consolidated information across sources indicates the issue affects Firefo...

CVE-2021-43535: Use After Free

A use-after-free could have occured when an HTTP2 session object was released on a different thread, leading to memory corruption and a potentially exploitable crash. This vulnerability affects Firefox 93, Thunderbird 91.3, and Firefox ESR 91.3...

CVE-2021-38507: Origin Validation Error

The Opportunistic Encryption feature of HTTP2 RFC 8164 allows a connection to be transparently upgraded to TLS while retaining the visual properties of an HTTP connection, including being same-origin with unencrypted connections on port 80. However, if a second encrypted port on the same IP addre...

SUSE-SU-2021:3964-1 Security update for nodejs14

This update for nodejs14 fixes the following issues: nodejs14 was updated to 14.18.1: deps: update llhttp to 2.1.4 - HTTP Request Smuggling due to spaced in headers bsc1191601, CVE-2021-22959 - HTTP Request Smuggling when parsing the body bsc1191602, CVE-2021-22960 Changes in 14.18.0: buffer: +...

Security update for nodejs14 (important)

openSUSE Security Update: Security update for nodejs14 Announcement ID: openSUSE-SU-2021:3964-1 Rating: important References: 1190053 1190054 1190055 1190056 1190057 1191601 1191602 Cross-References: CVE-2021-22959 CVE-2021-22960 CVE-2021-37701 CVE-2021-37712 CVE-2021-37713 CVE-2021-39134...

SUSE SLED15: MozillaFirefox / MozillaFirefox-devel / etc (SUSE-SU-2021:3745-1)

The remote SUSE Linux SLED15 / SLES15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2021:3745-1 advisory. MozillaFirefox was updated to Extended Support Release 91.3.0 ESR Fixed: Various stability, functionality, and security fixes MFSA...

thunderbird security update

CentOS Errata and Security Advisory CESA-2021:4134 An update for thunderbird is now available for Red Hat Enterprise Linux 7. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed...

firefox security update

CentOS Errata and Security Advisory CESA-2021:4116 An update for firefox is now available for Red Hat Enterprise Linux 7. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity...

CentOS 7 : thunderbird (RHSA-2021:4134)

The remote CentOS Linux 7 host has a package installed that is affected by multiple vulnerabilities as referenced in the RHSA-2021:4134 advisory. - The iframe sandbox rules were not correctly applied to XSLT stylesheets, allowing an iframe to bypass restrictions such as executing scripts or...

Apache Tomcat Denial of Service (CVE-2020-11996)

A denial of service vulnerability exists in Apache Tomcat. A remote, unauthenticated attacker could exploit this vulnerability by sending a specially crafted HTTP2 packet to a vulnerable server. Successful exploitation of this vulnerability could result in denial of service conditions...

RHEL 8 : firefox (RHSA-2021:4607)

The remote Redhat Enterprise Linux 8 host has a package installed that is affected by multiple vulnerabilities as referenced in the RHSA-2021:4607 advisory. Mozilla Firefox is an open-source web browser, designed for standards compliance, performance, and portability. This update upgrades Firefox...

MGASA-2021-0506 Updated thunderbird packages fix security vulnerabilities

Updated thunderbird packages fix security vulnerabilities: The iframe sandbox rules were not correctly applied to XSLT stylesheets, allowing an iframe to bypass restrictions such as executing scripts or navigating the top-level frame CVE-2021-38503. When interacting with an HTML input element's...