CVE-2024-25629
Published: 23 February 2024
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.
Priority
Status
| Package | Release | Status |
|---|---|---|
|
c-ares Launchpad, Ubuntu, Debian |
bionic |
Released
(1.14.0-1ubuntu0.2+esm2)
Available with Ubuntu Pro or Ubuntu Pro (Infra-only) |
| focal |
Released
(1.15.0-1ubuntu0.5)
|
|
| jammy |
Released
(1.18.1-1ubuntu0.22.04.3)
|
|
| mantic |
Released
(1.19.1-3ubuntu0.1)
|
|
| trusty |
Ignored
(end of standard support)
|
|
| upstream |
Released
(1.27.0)
|
|
| xenial |
Released
(1.10.0-3ubuntu0.2+esm3)
Available with Ubuntu Pro or Ubuntu Pro (Infra-only) |
|
|
Patches: upstream: https://github.com/c-ares/c-ares/commit/a804c04ddc8245fc8adf0e92368709639125e183 |
||