neon provides an HTTP and WebDAV client library.
There are multiple format string vulnerabilities in libneon which may allow a malicious WebDAV server to execute arbitrary code under the context of the process using libneon.
An attacker may be able to execute arbitrary code under the context of the process using libneon.
A workaround is not currently known for this issue. All users are advised to upgrade to the latest version of the affected package.
Neon users should upgrade to version 0.24.5 or later:
# emerge sync
# emerge -pv ">=net-misc/neon-0.24.5"
# emerge ">=net-misc/neon-0.24.5"