mirror of
https://github.com/NixOS/nixpkgs.git
synced 2024-11-21 13:10:33 +00:00
64f5845418
This addresses the following security advisories:
+ CVE-2016-3075: Stack overflow in _nss_dns_getnetbyname_r
+ CVE-2016-1234: glob: buffer overflow with GLOB_ALTDIRFUNC due to incorrect
NAME_MAX limit assumption
+ CVE-2016-3706: getaddrinfo: stack overflow in hostent conversion
Patches cherry-picked from glibc's release/2.23/master branch.
The "glob-simplify-interface.patch" was a dependency for
"cve-2016-1234.patch".
36 lines
1.2 KiB
Diff
36 lines
1.2 KiB
Diff
commit 146b58d11fddbef15b888906e3be4f33900c416f
|
|
Author: Florian Weimer <fweimer@redhat.com>
|
|
Date: Tue Mar 29 12:57:56 2016 +0200
|
|
|
|
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)
|
|
|
|
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)
|
|
{
|