c-ares is a C library for asynchronous DNS requests. `ares__read_line()` is used to parse local configuration files such as `/etc/resolv.conf`, `/etc/nsswitch.conf`, the `HOSTALIASES` file, and if using a c-ares version prior to 1.27.0, the `/etc/hosts` file. If any of these configuration files has an embedded `NULL` character as the first character in a new line, it can lead to attempting to read memory prior to the start of the given buffer which may result in a crash. This issue is fixed in c-ares 1.27.0. No known workarounds exist.
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cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published: 2024-02-23T14:52:24.967Z

Updated: 2024-08-01T23:44:09.807Z

Reserved: 2024-02-08T22:26:33.512Z

Link: CVE-2024-25629

cve-icon Vulnrichment

Updated: 2024-08-01T23:44:09.807Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2024-02-23T15:15:09.237

Modified: 2024-11-21T09:01:06.910

Link: CVE-2024-25629

cve-icon Redhat

Severity : Low

Publid Date: 2024-02-23T00:00:00Z

Links: CVE-2024-25629 - Bugzilla