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unnamed unix domain socket could generate invalid log output or lead to a process crash

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This commit is contained in:
Gerhard Rieger 2011-10-08 11:10:58 +02:00
parent b8d16ecd51
commit 3881c794a7
2 changed files with 13 additions and 5 deletions
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4
CHANGES
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@ -26,6 +26,10 @@ corrections:
address PTY does not take any parameters but did not report an error
when some were given
Marcus Meissner provided a patch that fixes invalid output and possible
process crash when socat prints info about an unnamed unix domain
socket
####################### V 1.7.1.3:
security:

14
sysutils.c
View file

@ -1,5 +1,5 @@
/* source: sysutils.c */
/* Copyright Gerhard Rieger 2001-2008 */
/* Copyright Gerhard Rieger 2001-2011 */
/* Published under the GNU General Public License V.2, see file COPYING */
/* translate socket addresses into human readable form */
@ -215,10 +215,14 @@ char *sockaddr_unix_info(const struct sockaddr_un *sa, socklen_t salen, char *bu
} else
#endif /* WITH_ABSTRACT_UNIXSOCKET */
{
nextc =
sanitize_string(sa->sun_path,
MIN(UNIX_PATH_MAX, strlen(sa->sun_path)),
ubuff, XIOSAN_DEFAULT_BACKSLASH_OCT_3);
if (salen <= XIOUNIXSOCKOVERHEAD) {
nextc = sanitize_string ("<anon>", MIN(UNIX_PATH_MAX, strlen("<anon>")),
ubuff, XIOSAN_DEFAULT_BACKSLASH_OCT_3);
} else {
nextc = sanitize_string(sa->sun_path,
MIN(UNIX_PATH_MAX, strlen(sa->sun_path)),
ubuff, XIOSAN_DEFAULT_BACKSLASH_OCT_3);
}
*nextc = '\0';
strncpy(buff, ubuff, blen);
}