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- markus@cvs.openbsd.org 2011/08/01 19:18:15

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[gss-serv.c]
     prevent post-auth resource exhaustion (int overflow leading to 4GB malloc);
     report Adam Zabrock; ok djm@, deraadt@
This commit is contained in:
Damien Miller 2011-08-06 06:16:46 +10:00
parent 35e48198a8
commit adb467fb69
2 changed files with 7 additions and 1 deletions
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4
ChangeLog
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@ -13,6 +13,10 @@
fail open(2) with EPERM rather than SIGKILLing the whole process. libc
will call open() to do strerror() when NLS is enabled;
feedback and ok markus@
- markus@cvs.openbsd.org 2011/08/01 19:18:15
[gss-serv.c]
prevent post-auth resource exhaustion (int overflow leading to 4GB malloc);
report Adam Zabrock; ok djm@, deraadt@
20110624
- (djm) [configure.ac Makefile.in sandbox-darwin.c] Add a sandbox for

4
gss-serv.c
View File

@ -1,4 +1,4 @@
/* $OpenBSD: gss-serv.c,v 1.22 2008/05/08 12:02:23 djm Exp $ */
/* $OpenBSD: gss-serv.c,v 1.23 2011/08/01 19:18:15 markus Exp $ */
/*
* Copyright (c) 2001-2003 Simon Wilkinson. All rights reserved.
@ -229,6 +229,8 @@ ssh_gssapi_parse_ename(Gssctxt *ctx, gss_buffer_t ename, gss_buffer_t name)
name->length = get_u32(tok+offset);
offset += 4;
if (UINT_MAX - offset < name->length)
return GSS_S_FAILURE;
if (ename->length < offset+name->length)
return GSS_S_FAILURE;