CERBERUS/nmap
1
0
Fork 0
mirror of https://github.com/nmap/nmap.git synced 2026-05-13 08:46:45 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions 1

Reject non-useable routes. Fixes #2206

Browse source
This commit is contained in:
nnposter 2021-01-18 20:11:40 +00:00
parent 5258ac6b3c
commit 4564749ccd
2 changed files with 6 additions and 1 deletions
Download patch file Download diff file Expand all files Collapse all files

4
CHANGELOG
View file

@ -1,5 +1,9 @@
#Nmap Changelog ($Id$); -*-text-*-
o [GH#2206] Nmap no longer produces cryptic message "Failed to convert
source address to presentation format" when unable to find useable route
to the target. [nnposter]
o [Ncat][GH#2202] Use safety-checked versions of FD_* macros to abort early if
number of connections exceeds FD_SETSIZE. [Pavel Zhukov]

3
libnetutil/netutil.cc
View file

@ -3163,7 +3163,8 @@ static int route_dst_netlink(const struct sockaddr_storage *dst,
len -= NLMSG_LENGTH(sizeof(*nlmsg));
/* See rtnetlink(7). Anything matching this route is actually unroutable. */
if (rtmsg->rtm_type == RTN_UNREACHABLE)
if (rtmsg->rtm_type == RTN_UNREACHABLE || rtmsg->rtm_type == RTN_UNSPEC
|| rtmsg->rtm_type == RTN_BLACKHOLE || rtmsg->rtm_type == RTN_PROHIBIT)
return 0;
/* Default values to be possibly overridden. */