mirror of
https://git.in.rschanz.org/ryan77627/guix.git
synced 2024-11-15 19:35:25 -05:00
a0ae64a334
* gnu/packages/base.scm (glibc@2.23)[source]: Add patches. * gnu/packages/patches/glibc-CVE-2016-3075.patch, gnu/packages/patches/glibc-CVE-2016-3706.patch, gnu/packages/patches/glibc-CVE-2016-4429.patch: New files. * gnu/local.mk (dist_patch_DATA): Register them.
43 lines
1.4 KiB
Diff
43 lines
1.4 KiB
Diff
From 146b58d11fddbef15b888906e3be4f33900c416f Mon Sep 17 00:00:00 2001
|
|
From: Florian Weimer <fweimer@redhat.com>
|
|
Date: Tue, 29 Mar 2016 12:57:56 +0200
|
|
Subject: [PATCH] CVE-2016-3075: Stack overflow in _nss_dns_getnetbyname_r [BZ
|
|
#19879]
|
|
|
|
The defensive copy is not needed because the name may not alias the
|
|
output buffer.
|
|
|
|
(cherry picked from commit 317b199b4aff8cfa27f2302ab404d2bb5032b9a4)
|
|
(cherry picked from commit 883dceebc8f11921a9890211a4e202e5be17562f)
|
|
---
|
|
ChangeLog | 7 +++++++
|
|
NEWS | 10 ++++++++--
|
|
resolv/nss_dns/dns-network.c | 5 +----
|
|
3 files changed, 16 insertions(+), 6 deletions(-)
|
|
|
|
diff --git a/resolv/nss_dns/dns-network.c b/resolv/nss_dns/dns-network.c
|
|
index 2eb2f67..8f301a7 100644
|
|
--- a/resolv/nss_dns/dns-network.c
|
|
+++ b/resolv/nss_dns/dns-network.c
|
|
@@ -118,17 +118,14 @@ _nss_dns_getnetbyname_r (const char *name, struct netent *result,
|
|
} net_buffer;
|
|
querybuf *orig_net_buffer;
|
|
int anslen;
|
|
- char *qbuf;
|
|
enum nss_status status;
|
|
|
|
if (__res_maybe_init (&_res, 0) == -1)
|
|
return NSS_STATUS_UNAVAIL;
|
|
|
|
- qbuf = strdupa (name);
|
|
-
|
|
net_buffer.buf = orig_net_buffer = (querybuf *) alloca (1024);
|
|
|
|
- anslen = __libc_res_nsearch (&_res, qbuf, C_IN, T_PTR, net_buffer.buf->buf,
|
|
+ anslen = __libc_res_nsearch (&_res, name, C_IN, T_PTR, net_buffer.buf->buf,
|
|
1024, &net_buffer.ptr, NULL, NULL, NULL, NULL);
|
|
if (anslen < 0)
|
|
{
|
|
--
|
|
2.9.3
|
|
|