- -------------------------------------------------------------------------
Debian LTS Advisory DLA-2786-1                debian-lts@lists.debian.org
https://www.debian.org/lts/security/                         Anton Gladky
October 16, 2021                              https://wiki.debian.org/LTS
- -------------------------------------------------------------------------

Package        : nghttp2
Version        : 1.18.1-1+deb9u2
CVE ID         : CVE-2018-1000168 CVE-2020-11080

Two security issue have been discovered in nghttp2: server, proxy and client
implementing HTTP/2.

CVE-2018-1000168

    An Improper Input Validation CWE-20 vulnerability found in ALTSVC frame handling
    that can result in segmentation fault leading to denial of service. This attack
    appears to be exploitable via network client.

CVE-2020-11080

    The overly large HTTP/2 SETTINGS frame payload causes denial of service.
    The proof of concept attack involves a malicious client constructing a SETTINGS
    frame with a length of 14,400 bytes (2400 individual settings entries) over and over again.
    The attack causes the CPU to spike at 100%.

For Debian 9 stretch, these problems have been fixed in version
1.18.1-1+deb9u2.

We recommend that you upgrade your nghttp2 packages.

For the detailed security status of nghttp2 please refer to
its security tracker page at:
https://security-tracker.debian.org/tracker/source-package/nghttp2

Further information about Debian LTS security advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://wiki.debian.org/LTS

Debian LTS: DLA-2786-1: nghttp2 security update

October 17, 2021
Two security issue have been discovered in nghttp2: server, proxy and client implementing HTTP/2

Summary

CVE-2018-1000168

An Improper Input Validation CWE-20 vulnerability found in ALTSVC frame handling
that can result in segmentation fault leading to denial of service. This attack
appears to be exploitable via network client.

CVE-2020-11080

The overly large HTTP/2 SETTINGS frame payload causes denial of service.
The proof of concept attack involves a malicious client constructing a SETTINGS
frame with a length of 14,400 bytes (2400 individual settings entries) over and over again.
The attack causes the CPU to spike at 100%.

For Debian 9 stretch, these problems have been fixed in version
1.18.1-1+deb9u2.

We recommend that you upgrade your nghttp2 packages.

For the detailed security status of nghttp2 please refer to
its security tracker page at:
https://security-tracker.debian.org/tracker/source-package/nghttp2

Further information about Debian LTS security advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://wiki.debian.org/LTS


Severity
Package : nghttp2
Version : 1.18.1-1+deb9u2
CVE ID : CVE-2018-1000168 CVE-2020-11080

Related News

30.Lock Globe Motherboard Esm H320
1 - 2 min read
The SPDX 3.0 release marks a significant milestone in software management, particularly for Linux admins, infosec professionals, internet security
11.Locks IsometricPattern Esm H320
2 - 3 min read
Open Source maintainers and developers have been warned about the continued wave of attacks aimed at project maintainers similar to those recently
28.Lock Globe Esm H320
1 - 2 min read
A resurgence of cyberattacks targeting Linux systems in Asian campaigns through the utilization of the Pupy Remote Access Trojan (RAT) has been
27.Tablet Connections Blocks Lock Esm H320
2 - 4 min read
Canonical has recently announced the Beta release of Ubuntu Linux 24.04 LTS , codenamed "Noble Numbat." This release aims to continue Ubuntu's
21.Globe RadiatingCode Esm H320
2 - 3 min read
The open-source movement has come a long way, from its origins in the 1960s and 1970s to becoming an integral part of organizations worldwide.
13.Lock StylizedMotherboard Esm H320
2 - 3 min read
The Rust-based Edera project demonstrates a unique approach to container security that addresses cloud-native computing challenges. Let's examine
8.Locks HexConnections CodeGlobe Esm H320
2 - 3 min read
Canonical has launched Ubuntu Pro for Devices , a comprehensive offering emphasizing security and compliance for IoT device deployments. This
2.Motherboard Esm H320
2 - 3 min read
The recently uncovered "Native Branch History Injection (BHI)" exploit against the Linux kernel marks a significant milestone in the ongoing battle

Get the Latest News & Insights

Sign up to get the latest security news affecting Linux and open source delivered straight to your inbox.

© 2024 Guardian Digital, Inc All Rights Reserved