Oracle Linux 8 : c-ares (ELSA-2023-3584)

The remote Oracle Linux 8 host has packages installed that are affected by a vulnerability as referenced in the ELSA-2023-3584 advisory. 1.13.0-6.1 - Resolves: rhbz2209516 - CVE-2023-32067 c-ares: 0-byte UDP payload Denial of Service rhel-8.8.0.z Tenable has extracted the preceding description...

Oracle Linux 9 : c-ares (ELSA-2023-3559)

The remote Oracle Linux 9 host has packages installed that are affected by a vulnerability as referenced in the ELSA-2023-3559 advisory. 1.17.1-5.1 - Resolves: rhbz2209519 - CVE-2023-32067 c-ares: 0-byte UDP payload Denial of Service rhel-9.2.0.z Tenable has extracted the preceding description...

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...

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 ...

UBUNTU-CVE-2023-31130

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...

Design/Logic Flaw

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...

CVE-2023-31130

CVE-2023-31130 affects the c-ares asynchronous DNS library. The vulnerability is a buffer underflow/underwrite in ares_inet_net_pton() for IPv6 addresses such as 0::00:00:00/2. Affected versions are prior to the fix, with the issue addressed in c-ares 1.19.1. Multiple advisories reference upgrade...

Uncontrolled Resource Consumption

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...