Description
A possible use-after-free and double-free in c-ares lib version 1.16.0 if ares_destroy() is called prior to ares_getaddrinfo() completing. This flaw possibly allows an attacker to crash the service that uses c-ares lib. The highest threat from this vulnerability is to this service availability.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| — | c-ares | c-ares 1.16.1 | — |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | c-ares | 1.16.1-1 | — |
| Debian 13 | c-ares | 1.16.1-1 | — |
| Debian 12 | c-ares | 1.16.1-1 | — |