Buffer Underwrite (Buffer Underflow) Affecting c-ares package, versions [,1.91.1)
Snyk CVSS
Attack Complexity
High
Privileges Required
High
Availability
High
Threat Intelligence
EPSS
0.05% (13th
percentile)
Do your applications use this vulnerable package?
In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.
Test your applications- Snyk ID SNYK-UNMANAGED-CARES-5597615
- published 24 May 2023
- disclosed 22 May 2023
- credit Hannes Moesl
Introduced: 22 May 2023
New CVE-2023-31130 Open this link in a new tabHow to fix?
Upgrade c-ares to version 1.91.1 or higher.
Overview
Affected versions of this package are vulnerable to Buffer Underwrite (Buffer Underflow) in the ares_inet_net_pton() function. C-ares only uses this function internally for configuration purposes which would require an administrator to configure such an address via ares_set_sortlist(). However, users may externally use ares_inet_net_pton() for other purposes and thus be vulnerable to more severe issues.