import slirp4netns-0.1-4.dev.gitc4e1bc5.module+el8.1.0+5654+5237a55d
This commit is contained in:
CentOS Sources
parent
9790207338
commit
16df19d192
123
SOURCES/slirp4netns-CVE-2020-7039.patch
Normal file
123
SOURCES/slirp4netns-CVE-2020-7039.patch
Normal file
@ -0,0 +1,123 @@
|
|||||||
|
From 2655fffed7a9e765bcb4701dd876e9dab975f289 Mon Sep 17 00:00:00 2001
|
||||||
|
From: Samuel Thibault <samuel.thibault@ens-lyon.org>
|
||||||
|
Date: Wed, 8 Jan 2020 00:58:48 +0100
|
||||||
|
Subject: [PATCH] tcp_emu: Fix oob access
|
||||||
|
|
||||||
|
The main loop only checks for one available byte, while we sometimes
|
||||||
|
need two bytes.
|
||||||
|
|
||||||
|
2.24.1
|
||||||
|
|
||||||
|
From 82ebe9c370a0e2970fb5695aa19aa5214a6a1c80 Mon Sep 17 00:00:00 2001
|
||||||
|
From: Prasad J Pandit <pjp@fedoraproject.org>
|
||||||
|
Date: Thu, 9 Jan 2020 15:12:28 +0530
|
||||||
|
Subject: [PATCH] slirp: use correct size while emulating commands
|
||||||
|
|
||||||
|
While emulating services in tcp_emu(), it uses 'mbuf' size
|
||||||
|
'm->m_size' to write commands via snprintf(3). Use M_FREEROOM(m)
|
||||||
|
size to avoid possible OOB access.
|
||||||
|
|
||||||
|
Signed-off-by: Prasad J Pandit <pjp@fedoraproject.org>
|
||||||
|
Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
|
||||||
|
Message-Id: <20200109094228.79764-3-ppandit@redhat.com>
|
||||||
|
|
||||||
|
2.24.1
|
||||||
|
|
||||||
|
From ce131029d6d4a405cb7d3ac6716d03e58fb4a5d9 Mon Sep 17 00:00:00 2001
|
||||||
|
From: Prasad J Pandit <pjp@fedoraproject.org>
|
||||||
|
Date: Thu, 9 Jan 2020 15:12:27 +0530
|
||||||
|
Subject: [PATCH] slirp: use correct size while emulating IRC commands
|
||||||
|
|
||||||
|
While emulating IRC DCC commands, tcp_emu() uses 'mbuf' size
|
||||||
|
'm->m_size' to write DCC commands via snprintf(3). This may
|
||||||
|
lead to OOB write access, because 'bptr' points somewhere in
|
||||||
|
the middle of 'mbuf' buffer, not at the start. Use M_FREEROOM(m)
|
||||||
|
size to avoid OOB access.
|
||||||
|
|
||||||
|
Reported-by: Vishnu Dev TJ <vishnudevtj@gmail.com>
|
||||||
|
Signed-off-by: Prasad J Pandit <pjp@fedoraproject.org>
|
||||||
|
Reviewed-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
|
||||||
|
Message-Id: <20200109094228.79764-2-ppandit@redhat.com>
|
||||||
|
|
||||||
|
---
|
||||||
|
CHANGELOG.md | 1 +
|
||||||
|
src/tcp_subr.c | 7 +++++++
|
||||||
|
2 files changed, 8 insertions(+)
|
||||||
|
|
||||||
|
diff -up slirp4netns-c4e1bc5a5e6987f3a352ca524f13320a2d483398/qemu/slirp/tcp_subr.c.CVE-2020-7039 slirp4netns-c4e1bc5a5e6987f3a352ca524f13320a2d483398/qemu/slirp/tcp_subr.c
|
||||||
|
--- slirp4netns-c4e1bc5a5e6987f3a352ca524f13320a2d483398/qemu/slirp/tcp_subr.c.CVE-2020-7039 2020-01-16 11:13:39.558653385 +0100
|
||||||
|
+++ slirp4netns-c4e1bc5a5e6987f3a352ca524f13320a2d483398/qemu/slirp/tcp_subr.c 2020-01-16 14:23:54.027184429 +0100
|
||||||
|
@@ -704,7 +704,7 @@ tcp_emu(struct socket *so, struct mbuf *
|
||||||
|
n4 = (laddr & 0xff);
|
||||||
|
|
||||||
|
m->m_len = bptr - m->m_data; /* Adjust length */
|
||||||
|
- m->m_len += snprintf(bptr, m->m_size - m->m_len,
|
||||||
|
+ m->m_len += snprintf(bptr, M_FREEROOM(m),
|
||||||
|
"ORT %d,%d,%d,%d,%d,%d\r\n%s",
|
||||||
|
n1, n2, n3, n4, n5, n6, x==7?buff:"");
|
||||||
|
return 1;
|
||||||
|
@@ -737,7 +737,7 @@ tcp_emu(struct socket *so, struct mbuf *
|
||||||
|
n4 = (laddr & 0xff);
|
||||||
|
|
||||||
|
m->m_len = bptr - m->m_data; /* Adjust length */
|
||||||
|
- m->m_len += snprintf(bptr, m->m_size - m->m_len,
|
||||||
|
+ m->m_len += snprintf(bptr, M_FREEROOM(m),
|
||||||
|
"27 Entering Passive Mode (%d,%d,%d,%d,%d,%d)\r\n%s",
|
||||||
|
n1, n2, n3, n4, n5, n6, x==7?buff:"");
|
||||||
|
|
||||||
|
@@ -763,7 +763,7 @@ tcp_emu(struct socket *so, struct mbuf *
|
||||||
|
if (m->m_data[m->m_len-1] == '\0' && lport != 0 &&
|
||||||
|
(so = tcp_listen(slirp, INADDR_ANY, 0, so->so_laddr.s_addr,
|
||||||
|
htons(lport), SS_FACCEPTONCE)) != NULL)
|
||||||
|
- m->m_len = snprintf(m->m_data, m->m_size, "%d",
|
||||||
|
+ m->m_len = snprintf(m->m_data, M_ROOM(m), "%d",
|
||||||
|
ntohs(so->so_fport)) + 1;
|
||||||
|
return 1;
|
||||||
|
|
||||||
|
@@ -783,7 +783,7 @@ tcp_emu(struct socket *so, struct mbuf *
|
||||||
|
return 1;
|
||||||
|
}
|
||||||
|
m->m_len = bptr - m->m_data; /* Adjust length */
|
||||||
|
- m->m_len += snprintf(bptr, m->m_size,
|
||||||
|
+ m->m_len += snprintf(bptr, M_FREEROOM(m),
|
||||||
|
"DCC CHAT chat %lu %u%c\n",
|
||||||
|
(unsigned long)ntohl(so->so_faddr.s_addr),
|
||||||
|
ntohs(so->so_fport), 1);
|
||||||
|
@@ -794,7 +794,7 @@ tcp_emu(struct socket *so, struct mbuf *
|
||||||
|
return 1;
|
||||||
|
}
|
||||||
|
m->m_len = bptr - m->m_data; /* Adjust length */
|
||||||
|
- m->m_len += snprintf(bptr, m->m_size,
|
||||||
|
+ m->m_len += snprintf(bptr, M_FREEROOM(m),
|
||||||
|
"DCC SEND %s %lu %u %u%c\n", buff,
|
||||||
|
(unsigned long)ntohl(so->so_faddr.s_addr),
|
||||||
|
ntohs(so->so_fport), n1, 1);
|
||||||
|
@@ -805,7 +805,7 @@ tcp_emu(struct socket *so, struct mbuf *
|
||||||
|
return 1;
|
||||||
|
}
|
||||||
|
m->m_len = bptr - m->m_data; /* Adjust length */
|
||||||
|
- m->m_len += snprintf(bptr, m->m_size,
|
||||||
|
+ m->m_len += snprintf(bptr, M_FREEROOM(m),
|
||||||
|
"DCC MOVE %s %lu %u %u%c\n", buff,
|
||||||
|
(unsigned long)ntohl(so->so_faddr.s_addr),
|
||||||
|
ntohs(so->so_fport), n1, 1);
|
||||||
|
@@ -892,6 +892,9 @@ tcp_emu(struct socket *so, struct mbuf *
|
||||||
|
break;
|
||||||
|
|
||||||
|
case 5:
|
||||||
|
+ if (bptr == m->m_data + m->m_len - 1)
|
||||||
|
+ return 1; /* We need two bytes */
|
||||||
|
+
|
||||||
|
/*
|
||||||
|
* The difference between versions 1.0 and
|
||||||
|
* 2.0 is here. For future versions of
|
||||||
|
@@ -907,6 +910,9 @@ tcp_emu(struct socket *so, struct mbuf *
|
||||||
|
/* This is the field containing the port
|
||||||
|
* number that RA-player is listening to.
|
||||||
|
*/
|
||||||
|
+ if (bptr == m->m_data + m->m_len - 1)
|
||||||
|
+ return 1; /* We need two bytes */
|
||||||
|
+
|
||||||
|
lport = (((u_char*)bptr)[0] << 8)
|
||||||
|
+ ((u_char *)bptr)[1];
|
||||||
|
if (lport < 6970)
|
||||||
@ -4,7 +4,7 @@
|
|||||||
|
|
||||||
Name: slirp4netns
|
Name: slirp4netns
|
||||||
Version: 0.1
|
Version: 0.1
|
||||||
Release: 3.dev.git%{shortcommit0}%{?dist}
|
Release: 4.dev.git%{shortcommit0}%{?dist}
|
||||||
# no go-md2man in ix86 and ppc64
|
# no go-md2man in ix86 and ppc64
|
||||||
ExcludeArch: %{ix86} ppc64
|
ExcludeArch: %{ix86} ppc64
|
||||||
Summary: slirp for network namespaces
|
Summary: slirp for network namespaces
|
||||||
@ -12,6 +12,7 @@ License: GPLv2
|
|||||||
URL: %{git0}
|
URL: %{git0}
|
||||||
Source0: %{git0}/archive/%{commit0}/%{name}-%{shortcommit0}.tar.gz
|
Source0: %{git0}/archive/%{commit0}/%{name}-%{shortcommit0}.tar.gz
|
||||||
Patch0: slirp4netns-CVE-2019-14378.patch
|
Patch0: slirp4netns-CVE-2019-14378.patch
|
||||||
|
Patch1: slirp4netns-CVE-2020-7039.patch
|
||||||
BuildRequires: autoconf
|
BuildRequires: autoconf
|
||||||
BuildRequires: automake
|
BuildRequires: automake
|
||||||
BuildRequires: gcc
|
BuildRequires: gcc
|
||||||
@ -56,6 +57,10 @@ make DESTDIR=%{buildroot} install install-man
|
|||||||
%{_mandir}/man1/%{name}.1.gz
|
%{_mandir}/man1/%{name}.1.gz
|
||||||
|
|
||||||
%changelog
|
%changelog
|
||||||
|
* Thu Jan 16 2020 Jindrich Novy <jnovy@redhat.com> - 0.1-4.dev.gitc4e1bc5
|
||||||
|
- backport fix for CVE-2020-7039
|
||||||
|
- Resolves: #1791577
|
||||||
|
|
||||||
* Fri Sep 27 2019 Jindrich Novy <jnovy@redhat.com> - 0.1-3.dev.gitc4e1bc5
|
* Fri Sep 27 2019 Jindrich Novy <jnovy@redhat.com> - 0.1-3.dev.gitc4e1bc5
|
||||||
- Fix CVE-2019-14378 (#1755595).
|
- Fix CVE-2019-14378 (#1755595).
|
||||||
|
|
||||||
|
|||||||
Loading…
Reference in New Issue
Block a user