CVE-2023-31124

CVE-2023-31124 concerns c-ares where cross-compiling with autotools can leave CARES_RANDOM_FILE unset, causing a fallback to rand() for DNS query ID entropy rather than a CSPRNG. The result is reduced randomness and potential predictability of DNS IDs, raising security risk under entropy-limited ...

CVE-2023-31124 AutoTools does not set CARES_RANDOM_FILE during cross compilation

c-ares is an asynchronous resolver library. When cross-compiling c-ares and using the autotools build system, CARESRANDOMFILE will not be set, as seen when cross compiling aarch64 android. This will downgrade to using rand as a fallback which could allow an attacker to take advantage of the lack ...

CVE-2023-31124 AutoTools does not set CARES_RANDOM_FILE during cross compilation

c-ares is an asynchronous resolver library. When cross-compiling c-ares and using the autotools build system, CARESRANDOMFILE will not be set, as seen when cross compiling aarch64 android. This will downgrade to using rand as a fallback which could allow an attacker to take advantage of the lack ...

Use of Insufficiently Random Values

c-ares is an asynchronous resolver library. When /dev/urandom or RtlGenRandom are unavailable, c-ares uses rand to generate random numbers used for DNS query ids. This is not a CSPRNG, and it is also not seeded by srand so will generate predictable output. Input from the random number generator i...

Buffer Underwrite ('Buffer Underflow')

c-ares is an asynchronous resolver library. aresinetnetpton is vulnerable to a buffer underflow for certain ipv6 addresses, in particular "0::00:00:00/2" was found to cause an issue. C-ares only uses this function internally for configuration purposes which would require an administrator to...

c-ares 安全特征问题漏洞

c-ares is a C library for asynchronous DNS requests from the individual developers of c-ares. A security vulnerability exists in versions prior to c-ares 1.19.1, which stems from a lack of entropy that allows an attacker to exploit entropy by not using CSPRNG...

c-ares 缓冲区错误漏洞

c-ares is a C library for asynchronous DNS requests from the individual developers of c-ares. A security vulnerability exists in c-ares versions prior to 1.19.1 that stems from the presence of a buffer overflow...

Use of Insufficiently Random Values

c-ares is an asynchronous resolver library. When cross-compiling c-ares and using the autotools build system, CARESRANDOMFILE will not be set, as seen when cross compiling aarch64 android. This will downgrade to using rand as a fallback which could allow an attacker to take advantage of the lack ...

c-ares 资源管理错误漏洞

c-ares is a C library for asynchronous DNS requests from the individual developers of c-ares. A security vulnerability exists in c-ares versions prior to 1.19.1, which stems from vulnerability to denial-of-service attacks...

CVE-2023-32067

A vulnerability was found in c-ares. This issue occurs due to a 0-byte UDP payload that can cause a Denial of Service...

CVE-2023-31147

A vulnerability was found in c-ares. This issue occurs when /dev/urandom or RtlGenRandom are unavailable, c-ares will use rand to generate random numbers used for DNS query ids. This is not a CSPRNG, and it is also not seeded by srand, so it will generate predictable output...

CVE-2023-31130

A vulnerability was found in c-ares. This issue occurs in the aresinetnetpton function, which is vulnerable to a buffer underflow for certain ipv6 addresses. "0::00:00:00/2" in particular was found to cause an issue. C-ares only uses this function internally for configuration purposes, which woul...

CVE-2023-31124

A flaw was found in c-ares. This issue occurs when cross-compiling c-ares and using the autotools build system, CARESRANDOMFILE will not be set, as seen when cross-compiling aarch64 android. As a result, it will downgrade to rand, which could allow an attacker to utilize the lack of entropy by no...

SUSE CVE-2023-31124

c-ares is an asynchronous resolver library. When cross-compiling c-ares and using the autotools build system, CARESRANDOMFILE will not be set, as seen when cross compiling aarch64 android. This will downgrade to using rand as a fallback which could allow an attacker to take advantage of the lack ...

SUSE CVE-2023-32067

c-ares is an asynchronous resolver library. c-ares is vulnerable to denial of service. If a target resolver sends a query, the attacker forges a malformed UDP packet with a length of 0 and returns them to the target resolver. The target resolver erroneously interprets the 0 length as a graceful...

Mageia: Security Advisory (MGASA-2023-0069)

The remote host is missing an update for the SPDX-FileCopyrightText: 2023 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...

Slackware: Security Advisory (SSA:2023-142-01)

The remote host is missing an update for the SPDX-FileCopyrightText: 2023 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...

[slackware-security] c-ares

New c-ares packages are available for Slackware 15.0 and -current to fix security issues. Here are the details from the Slackware 15.0 ChangeLog: patches/packages/c-ares-1.19.1-i586-1slack15.0.txz: Upgraded. This update fixes bugs and security issues: 0-byte UDP payload causes Denial of Service...

PT-2023-23180

Name of the Vulnerable Software and Affected Versions c-ares versions prior to 1.19.1 Description The issue arises when /dev/urandom or RtlGenRandom are unavailable, and c-ares uses rand to generate random numbers for DNS query ids. This approach is not a Cryptographically Secure PseudoRandom...

PT-2023-6788

Name of the Vulnerable Software and Affected Versions c-ares versions prior to 1.19.1 Description The issue is related to a buffer underflow in the ares inet net pton function for certain IPv6 addresses, such as "0::00:00:00/2". This function is used internally by c-ares for configuration purpose...