nginx: Off-by-one in ngx_resolver_copy() when labels are followed by a pointer to a root domain name

A flaw was found in nginx. An off-by-one error while processing DNS responses allows a network attacker to write a dot character out of bounds in a heap allocated buffer which can allow overwriting the least significant byte of next heap chunk metadata likely leading to a remote code execution in...

Important: Red Hat Security Advisory: rh-nginx116-nginx security update

An update for rh-nginx116-nginx is now available for Red Hat Software Collections. 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 rating, is available for each...

nginx: Off-by-one in ngx_resolver_copy() when labels are followed by a pointer to a root domain name

A flaw was found in nginx. An off-by-one error while processing DNS responses allows a network attacker to write a dot character out of bounds in a heap allocated buffer which can allow overwriting the least significant byte of next heap chunk metadata likely leading to a remote code execution in...

Important: Red Hat Security Advisory: nginx:1.18 security update

An update for the nginx:1.18 module is now available for Red Hat Enterprise Linux 8. 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 rating, is available for each...

Important: Red Hat Security Advisory: rh-nginx118-nginx security update

An update for rh-nginx118-nginx is now available for Red Hat Software Collections. 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 rating, is available for each...

nginx: Off-by-one in ngx_resolver_copy() when labels are followed by a pointer to a root domain name

A flaw was found in nginx. An off-by-one error while processing DNS responses allows a network attacker to write a dot character out of bounds in a heap allocated buffer which can allow overwriting the least significant byte of next heap chunk metadata likely leading to a remote code execution in...

The vulnerability of the ngx_resolver_copy() function in the nginx server allows a hacker to execute arbitrary code or cause a service failure.

The vulnerability of the ngxresolvercopy function in the nginx server is related to a single-byte offset error during the writing of the point symbol '.', 0x2E beyond the buffer limit. Exploiting this vulnerability allows an attacker to execute arbitrary code or cause a service failure by sending...

Debian DLA-2670-1 : nginx security update

Luis Merino, Markus Vervier and Eric Sesterhenn discovered an off-by-one in Nginx, a high-performance web and reverse proxy server, which could result in denial of service and potentially the execution of arbitrary code. For Debian 9 stretch, this problem has been fixed in version 1.10.3-1+deb9u6...

Debian DSA-4921-1 : nginx - security update

Luis Merino, Markus Vervier and Eric Sesterhenn discovered an off-by-one in Nginx, a high-performance web and reverse proxy server, which could result in denial of service and potentially the execution of arbitrary code. %NASLMINLEVEL 70300 C Tenable Network Security, Inc. The descriptive text an...

[SECURITY] [DLA 2670-1] nginx security update

----------------------------------------------------------------------- Debian LTS Advisory DLA-2670-1 [email protected] https://www.debian.org/lts/security/ Utkarsh Gupta May 30, 2021 https://wiki.debian.org/LTS - -----------------------------------------------------------------------...

in mcfriend99/bird

✍️ Description Heap-based 1-byte write violation. Certain programs can cause the parser/syntax-checker to write out of bounds. The below program writes a single byte out of bounds. 🕵️‍♂️ Proof of Concept Program: var a = 'outer' def test var a = 'inner' echo 'It works! $a' echo a echo test test def...

Debian: Security Advisory (DSA-4921-1)

The remote host is missing an update for the Debian SPDX-FileCopyrightText: 2021 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only ifdescription...

Remote Code Execution

nginx is vulnerable to remote code execution. A remote attacker who is able to provide DNS responses to a nginx server can likely achieve remote code execution due to an off-by-one error in ngxresolvercopy while processing DNS responses...

[SECURITY] [DSA 4921-1] nginx security update

------------------------------------------------------------------------- Debian Security Advisory DSA-4921-1 [email protected] https://www.debian.org/security/ Moritz Muehlenhoff May 28, 2021 https://www.debian.org/security/faq -...

nginx 1.20.0 DNS Resolver Off-By-One Heap Write Exploit

An off-by-one error in ngxresolvercopy while processing DNS responses allows a network attacker to write a dot character '.', 0x2E out of bounds in a heap allocated buffer. The vulnerability can be triggered by a DNS response in reply to a DNS request from nginx when the resolver primitive is...

Johnson Controls Sensormatic Electronics VideoEdge

1. EXECUTIVE SUMMARY CVSS v3 7.8 ATTENTION: Low attack complexity Vendor: Sensormatic Electronics, LLC, a subsidiary of Johnson Controls Equipment: VideoEdge Vulnerability: Off-by-one Error 2. RISK EVALUATION Under specific circumstances, a local authenticated user may be able to exploit this...

CVE-2021-23017

A flaw was found in nginx. An off-by-one error while processing DNS responses allows a network attacker to write a dot character out of bounds in a heap allocated buffer which can allow overwriting the least significant byte of next heap chunk metadata likely leading to a remote code execution in...

nginx 1.20.0 DNS Resolver Off-By-One Heap Write

Advisory X41-2021-002: nginx DNS Resolver Off-by-One Heap Write Vulnerability ============================================================================= Severity Rating: High Confirmed Affected Versions: 0.6.18 - 1.20.0 Confirmed Patched Versions: 1.21.0, 1.20.1 Vendor: F5, Inc. Vendor URL:...

Nginx < 1.20.1 Off-By-One Heap Write

According to its self-reported version number, the detected version of nginx is prior to 1.20.1. It is, therefore, affected by an off-by-one error in ngxresolvercopy while processing DNS responses. Note that the scanner has not tested for these issues but has instead relied only on the...

GHSA-JFP7-4J67-8R3Q Heap buffer overflow caused by rounding

Impact An attacker can trigger a heap buffer overflow in tf.rawops.QuantizedResizeBilinear by manipulating input values so that float rounding results in off-by-one error in accessing image elements: python import tensorflow as tf l = 256, 328, 361, 17, 361, 361, 361, 361, 361, 361, 361, 361, 361...