Multiple format string vulnerabilities in (1) neon 0.24.4 and earlier, and other products that use neon including (2) Cadaver, (3) Subversion, and (4) OpenOffice, allow remote malicious WebDAV servers to execute arbitrary code.
Format string bugs exist in neon versions 0.19.0 and below when ne_set_error is changed from taking a single char to taking printf-style varargs. Release 0.24.5 fixes this problem.