diff options
Diffstat (limited to 'gnu/packages/patches/glibc-CVE-2016-3075.patch')
| -rw-r--r-- | gnu/packages/patches/glibc-CVE-2016-3075.patch | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/gnu/packages/patches/glibc-CVE-2016-3075.patch b/gnu/packages/patches/glibc-CVE-2016-3075.patch new file mode 100644 index 0000000000..d16722806e --- /dev/null +++ b/gnu/packages/patches/glibc-CVE-2016-3075.patch @@ -0,0 +1,43 @@ +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 + |