CVE-2023-27491

A flaw was found in Envoy that may allow attackers to send specially crafted HTTP/2 or HTTP/3 requests to trigger parsing errors on the upstream HTTP/1 service...

JVN#38170084: HAProxy vulnerable to HTTP request/response smuggling

HAProxy's HTTP/3 implementation fails to block a malformed HTTP header field name, and when deployed in front of a server that incorrectly process this malformed header, it may be used to conduct an HTTP request/response smuggling attack CWE-444. Impact A remote attacker may alter a legitimate...

Microsoft Patch Tuesday March 2023: Outlook EoP, MOTW Bypass, Excel DoS, HTTP/3 RCE, ICMP RCE, RPC RCE

Hello everyone! This episode will be about Microsoft Patch Tuesday for March 2023, including vulnerabilities that were added between February and March Patch Tuesdays. Alternative video link for Russia: As usual, I use my open source Vulristics project to analyse and prioritize vulnerabilities. I...

Patch Tuesday - March 2023

Microsoft is offering fixes for 101 security issues for March 2023 Patch Tuesday, including two zero-day vulnerabilities; the most interesting of the two zero-day vulnerabilities is a flaw in Outlook which allows an attacker to authenticate against arbitrary remote resources as another user...

K61367237: BIG-IP HTTP/3 QUIC vulnerability CVE-2020-5859

Security Advisory Description Specially formatted HTTP/3 messages may cause the Traffic Management Microkernel TMM to produce a core file. CVE-2020-5859 Impact TMM may restart and temporarily fail to process traffic on BIG-IP hosts with the HTTP/3 QUIC profile configured. High availability HA...

Debian dla-3318 : haproxy - security update

The remote Debian 10 host has packages installed that are affected by a vulnerability as referenced in the dla-3318 advisory. ------------------------------------------------------------------------- Debian LTS Advisory DLA-3318-1 [email protected] https://www.debian.org/lts/security/...

Ubuntu 18.04 LTS / 20.04 LTS / 22.04 LTS : HAProxy vulnerability (USN-5869-1)

The remote Ubuntu 18.04 LTS / 20.04 LTS / 22.04 LTS host has packages installed that are affected by a vulnerability as referenced in the USN-5869-1 advisory. Bahruz Jabiyev, Anthony Gavazzi, Engin Kirda, Kaan Onarlioglu, Adi Peleg, and Harvey Tuch discovered that HAProxy incorrectly handled empt...

CVE-2023-25725

HAProxy before 2.7.3 may allow a bypass of access control because HTTP/1 headers are inadvertently lost in some situations, aka "request smuggling." The HTTP header parsers in HAProxy may accept empty header field names, which could be used to truncate the list of HTTP headers and thus make some...

.NET Denial of Service Vulnerability

Microsoft is releasing this security advisory to provide information about a vulnerability in .NET 6.0 and .NET 5.0. This advisory also provides guidance on what developers can do to update their applications to remove this vulnerability. A Denial of Service vulnerability exists in .NET 6.0 and...

GHSA-X459-P2RX-F8FF .NET Denial of Service Vulnerability

Microsoft is releasing this security advisory to provide information about a vulnerability in .NET 6.0 and .NET 5.0. This advisory also provides guidance on what developers can do to update their applications to remove this vulnerability. A Denial of Service vulnerability exists in .NET 6.0 and...

Google Adds Support for DNS-over-HTTP/3 in Android to Keep DNS Queries Private — The Hacker News

Google on Tuesday officially announced support for DNS-over-HTTP/3 DoH3 for Android devices as part of a Google Play system update designed to keep DNS queries private. To that end, Android smartphones running Android 11 and higher are expected to use DoH3 instead of DNS-over-TLS DoT, which was...

CVE-2022-30591

quic-go through 0.27.0 allows remote attackers to cause a denial of service CPU consumption via a Slowloris variant in which incomplete QUIC or HTTP/3 requests are sent. This occurs because mtudiscoverer.go misparses the MTU Discovery service and consequently overflows the probe timer. NOTE: the...

The Next Generation of HTTP

The IETF just released HTTP/3, an update to HTTP that leverages new transport protocol QUIC. Learn about how the new RFCs can affect any references to HTTP...

SUSE SLES15 Security Update : MozillaFirefox (SUSE-SU-2022:1577-1)

The remote SUSE Linux SLES15 / SLESSAP15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2022:1577-1 advisory. - Uninitialized memory in a canvas object could have caused an incorrect free leading to memory corruption and a potentially...

CVE-2022-21986

A vulnerability was found in dotnet’s ASP.NET Core Krestel when pooling HTTP/2 and HTTP/3 headers. This flaw allows a remote, unauthenticated attacker to cause a denial of service...

CVE-2022-219862

A vulnerability was found in dotnet’s ASP.NET Core Krestel when pooling HTTP/2 and HTTP/3 headers. This flaw allows a remote, unauthenticated attacker to cause a denial of service...

CVE-2021-43848

h2o is an open source http server. In code prior to the 8c0eca3 commit h2o may attempt to access uninitialized memory. When receiving QUIC frames in certain order, HTTP/3 server-side implementation of h2o can be misguided to treat uninitialized memory as HTTP/3 frames that have been received. Whe...

CVE-2021-43848

h2o is an open source http server. In code prior to the 8c0eca3 commit h2o may attempt to access uninitialized memory. When receiving QUIC frames in certain order, HTTP/3 server-side implementation of h2o can be misguided to treat uninitialized memory as HTTP/3 frames that have been received. Whe...

CVE-2021-43848

h2o is an open source http server. In code prior to the 8c0eca3 commit h2o may attempt to access uninitialized memory. When receiving QUIC frames in certain order, HTTP/3 server-side implementation of h2o can be misguided to treat uninitialized memory as HTTP/3 frames that have been received. Whe...

Design/Logic Flaw

h2o is an open source http server. In code prior to the 8c0eca3 commit h2o may attempt to access uninitialized memory. When receiving QUIC frames in certain order, HTTP/3 server-side implementation of h2o can be misguided to treat uninitialized memory as HTTP/3 frames that have been received. Whe...